What about this?
Destructor is not called if an exception is thrown from the constructor, so I have to call it manually to destroy handles that have been created in the constructor before the exception.

class MyClass {
  HANDLE h1,h2;
  public:
  MyClass() {
    // handles have to be created first
    h1=SomeAPIToCreateA();
    h2=SomeAPIToCreateB();        
    try {
      ...
      if(error) {
        throw MyException();
      }
    }
    catch(...) {
      this->~MyClass();
      throw;
    }
  }
  ~MyClass() {
    SomeAPIToDestroyA(h1);
    SomeAPIToDestroyB(h2);
  }
};

I would avoid to put modifiers that are applied by default. As pointed out, it can lead to inconsistency and confusion.

The worst I saw is an interface with methods declared abstract...

Not exactly what you ask for, but I've found it easier to just all agree on a coding standard astyle can generate and then automate the process.

I would go for 1. I haven't met incompatibility with it and is more natural. But, I think that it is a part of C++ not C standard. I think that with dirty hacking with defines or your third option - won't gain any performance, but only pain maintaining the code.

I think it's meant to mean nothing. The wiki says:

"Foo is commonly used with the metasyntactic variables bar and foobar."

If variable you need could be boolean false - eg. when no records are returned from database or array - when records are returned, you can do following:

foreach (($result ? $result : array()) as $item)
    echo $item;

Approach with cast((Array)$result) produces an array of count 1 when variable is boolean false which isn't what you probably want.

This page tell that using "::" will be faster under certain constraints Just a thing to consider when choosing

It really also depends on how you name your variable.

When people are asking "which is better practice" - this implicitly implies that both are correct, so it's just a matter of which is easier to read and maintain.

If you name your variable "status" (which is the case in your example code), I would much prefer to see

if(status == false) // if status is false

On the other hand, if you had named your variable isXXX (e.g. isReadableCode), then the former is more readable. consider:

if(!isReadable) { // if not readable
  System.out.println("I'm having a headache reading your code");
}

If speed is critical, you might want to look for the Aho-Corasick algorithm for sets of patterns.

It's a trie with failure links, that is, complexity is O(n+m+k), where n is the length of the input text, m the cumulative length of the patterns and k the number of matches. You just have to modify the algorithm to terminate after the first match is found.

Beside int float string etc., you can put extra data to .second when using diff. types like:

std::map<unsigned long long int, glm::ivec2> voxels_corners;
std::map<unsigned long long int, glm::ivec2>::iterator it_corners;

or

struct voxel_map {
    int x,i;
};

std::map<unsigned long long int, voxel_map> voxels_corners;
std::map<unsigned long long int, voxel_map>::iterator it_corners;

when

long long unsigned int index_first=some_key; // llu in this case...
int i=0;
voxels_corners.insert(std::make_pair(index_first,glm::ivec2(1,i++)));

or

long long unsigned int index_first=some_key;
int index_counter=0;
voxel_map one;
one.x=1;
one.i=index_counter++;

voxels_corners.insert(std::make_pair(index_first,one));

with right type || structure you can put anything in the .second including a index number that is incremented when doing an insert.

instead of

it_corners - _corners.begin()

or

std::distance(it_corners.begin(), it_corners)

after

it_corners = voxels_corners.find(index_first+bdif_x+x_z);

the index is simply:

int vertice_index = it_corners->second.y;

when using the glm::ivec2 type

or

int vertice_index = it_corners->second.i;

in case of the structure data type

My general pattern is that if it fits on one line, I'll do:

if(true) do_something();

If there's an else clause, or if the code I want to execute on true is of significant length, braces all the way:

if(true) {
    do_something_and_pass_arguments_to_it(argument1, argument2, argument3);
}

if(false) {
    do_something();
} else {
    do_something_else();
}

Ultimately, it comes down to a subjective issue of style and readability. The general programming world, however, pretty much splits into two parties (for languages that use braces): either use them all the time without exception, or use them all the time with exception. I'm part of the latter group.

Let me preface this by saying I'm talking primarily about method access here, and to a slightly lesser extent, marking classes final, not member access.

The old wisdom

"mark it private unless you have a good reason not to"

made sense in days when it was written, before open source dominated the developer library space and VCS/dependency mgmt. became hyper collaborative thanks to Github, Maven, etc. Back then there was also money to be made by constraining the way(s) in which a library could be utilized. I spent probably the first 8 or 9 years of my career strictly adhering to this "best practice".

Today, I believe it to be bad advice. Sometimes there's a reasonable argument to mark a method private, or a class final but it's exceedingly rare, and even then it's probably not improving anything.

Have you ever:

• Been disappointed, surprised or hurt by a library etc. that had a bug that could have been fixed with inheritance and few lines of code, but due to private / final methods and classes were forced to wait for an official patch that might never come? I have.
• Wanted to use a library for a slightly different use case than was imagined by the authors but were unable to do so because of private / final methods and classes? I have.
• Been disappointed, surprised or hurt by a library etc. that was overly permissive in it's extensibility? I have not.

These are the three biggest rationalizations I've heard for marking methods private by default:

Rationalization #1: It's unsafe and there's no reason to override a specific method

I can't count the number of times I've been wrong about whether or not there will ever be a need to override a specific method I've written. Having worked on several popular open source libs, I learned the hard way the true cost of marking things private. It often eliminates the only practical solution to unforseen problems or use cases. Conversely, I've never in 16+ years of professional development regretted marking a method protected instead of private for reasons related to API safety. When a developer chooses to extend a class and override a method, they are consciously saying "I know what I'm doing." and for the sake of productivity that should be enough. period. If it's dangerous, note it in the class/method Javadocs, don't just blindly slam the door shut.

Marking methods protected by default is a mitigation for one of the major issues in modern SW development: failure of imagination.

Rationalization #2: It keeps the public API / Javadocs clean

This one is more reasonable, and depending on the target audience it might even be the right thing to do, but it's worth considering what the cost of keeping the API "clean" actually is: extensibility. For the reasons mentioned above, it probably makes more sense to mark things protected by default just in case.

Rationalization #3: My software is commercial and I need to restrict it's use.

This is reasonable too, but as a consumer I'd go with the less restrictive competitor (assuming no significant quality differences exist) every time.

Never say never

I'm not saying never mark methods private. I'm saying the better rule of thumb is to "make methods protected unless there's a good reason not to".

This advice is best suited for those working on libraries or larger scale projects that have been broken into modules. For smaller or more monolithic projects it doesn't tend to matter as much since you control all the code anyway and it's easy to change the access level of your code if/when you need it. Even then though, I'd still give the same advice :-)

Very interesting question.

I don't see any difference w.r.t safety or versatility, since you can do the same thing with pointer or reference. I also don't think there is any visible difference in performance since references are implemented by pointers.

But I think using reference is better because it is consistent with the standard library. For example, chaining in iostream is done by reference rather than pointer.

To count the number of values larger than x in any numpy array you can use:

n = len(matrix[matrix > x])

The boolean indexing returns an array that contains only the elements where the condition (matrix > x) is met. Then len() counts these values.

It's really just a coding style. The compiler generates the exact same for both variants.

See also here for the performance question:

• Will using 'var' affect performance?

In my experience, tests of the form if (ptr) or if (!ptr) are preferred. They do not depend on the definition of the symbol NULL. They do not expose the opportunity for the accidental assignment. And they are clear and succinct.

Edit: As SoapBox points out in a comment, they are compatible with C++ classes such as auto_ptr that are objects that act as pointers and which provide a conversion to bool to enable exactly this idiom. For these objects, an explicit comparison to NULL would have to invoke a conversion to pointer which may have other semantic side effects or be more expensive than the simple existence check that the bool conversion implies.

I have a preference for code that says what it means without unneeded text. if (ptr != NULL) has the same meaning as if (ptr) but at the cost of redundant specificity. The next logical thing is to write if ((ptr != NULL) == TRUE) and that way lies madness. The C language is clear that a boolean tested by if, while or the like has a specific meaning of non-zero value is true and zero is false. Redundancy does not make it clearer.

I think the first way (multiple variables) is best, as you can otherwise end up with this (from an application that uses KnockoutJS), which is difficult to read in my opinion:

    var categories = ko.observableArray(),
        keywordFilter = ko.observableArray(),
        omniFilter = ko.observable('').extend({ throttle: 300 }),
        filteredCategories = ko.computed(function () {
            var underlyingArray = categories();
            return ko.utils.arrayFilter(underlyingArray, function (n) {
                return n.FilteredSportCount() > 0;
            });
        }),
        favoriteSports = ko.computed(function () {
            var sports = ko.observableArray();
            ko.utils.arrayForEach(categories(), function (c) {
                ko.utils.arrayForEach(c.Sports(), function (a) {
                    if (a.IsFavorite()) {
                        sports.push(a);
                    }
                });
            });
            return sports;
        }),
        toggleFavorite = function (sport, userId) {
            var isFavorite = sport.IsFavorite();

            var url = setfavouritesurl;

            var data = {
                userId: userId,
                sportId: sport.Id(),
                isFavourite: !isFavorite
            };

            var callback = function () {
                sport.IsFavorite(!isFavorite);
            };

            jQuery.support.cors = true;
            jQuery.ajax({
                url: url,
                type: "GET",
                data: data,
                success: callback
            });
        },
        hasfavoriteSports = ko.computed(function () {
            var result = false;
            ko.utils.arrayForEach(categories(), function (c) {
                ko.utils.arrayForEach(c.Sports(), function (a) {
                    if (a.IsFavorite()) {
                        result = true;
                    }
                });
            });
            return result;
        });

Here's when I use it:

• Accessing Private Methods from within the class (to differentiate)
• Passing the current object to another method (or as a sender object, in case of an event)
• When creating extension methods :D

I don't use this for Private fields because I prefix private field variable names with an underscore (_).

Convert <? (without a trailing space) to <?php (with a trailing space):

find . -name "*.php" -print0 | xargs -0 perl -pi -e 's/<\?(?!php|=|xml|mso| )/<\?php /g'

Convert <? (with a trailing space) to <?php (retaining the trailing space):

find . -name "*.php" -print0 | xargs -0 perl -pi -e 's/<\? /<\?php /g'

Consider the second script. If you import it in another one, the instructions, as at "global level", will be executed.

It should just be get{varname} like every other getter. Changing it to "is" doesn't stop bad variable names, it just makes another unnecessary rule.

Consider program generated code, or reflection derivations.

It's a non-useful convention that should be dropped at the first available opportunity.

If you're using jquery 1.6.2 you only need to code

$('#theid').css('display')

for example:

if($('#theid').css('display') == 'none'){ 
   $('#theid').show('slow'); 
} else { 
   $('#theid').hide('slow'); 
}

Do as you wish, as long as your are consistent among your dev. group. every few years the conventions changes..... (remmeber nIntVAr)...

list() is inherently slower than [], because

1. there is symbol lookup (no way for python to know in advance if you did not just redefine list to be something else!),

2. there is function invocation,

3. then it has to check if there was iterable argument passed (so it can create list with elements from it) ps. none in our case but there is "if" check

In most cases the speed difference won't make any practical difference though.

If you intend to run your program on anything else than your own laptop, never ever use the endl statement. Especially if you are writing a lot of short lines or as I have often seen single characters to a file. The use of endl is know to kill networked file systems like NFS.

It's perfectly OK doing it that way, but unless you need to use a closure or return the function I'd probably put in the module level. I imagine in the second code example you mean:

...
some_data = method_b() # not some_data = method_b

otherwise, some_data will be the function.

Having it at the module level will allow other functions to use method_b() and if you're using something like Sphinx (and autodoc) for documentation, it will allow you to document method_b as well.

You also may want to consider just putting the functionality in two methods in a class if you're doing something that can be representable by an object. This contains logic well too if that's all you're looking for.

Using fall-through like in your first example is clearly OK, and I would not consider it a real fall-through.

The second example is dangerous and (if not commented extensively) non-obvious. I teach my students not to use such constructs unless they consider it worth the effort to devote a comment block to it, which describes that this is an intentional fall-through, and why this solution is better than the alternatives. This discourages sloppy use, but it still makes it allowed in the cases where it is used to an advantage.

This is more or less equivalent to what we did in space projects when someone wanted to violate the coding standard: they had to apply for dispensation (and I was called on to advise about the ruling).

For loop can break; I dont want to be a parrot for Herb Sutter so here is the link to his presentation: http://channel9.msdn.com/Events/BUILD/BUILD2011/TOOL-835T Be sure to read the comments also :)

I know this is old but my order is as follows:

in order of public, protected, private, internal, abstract

• Constants
• Static Variables
• Fields
• Events
• Constructor(s)
• Methods
• Properties
• Delegates

I also like to write out properties like this (instead of the shorthand approach)

// Some where in the fields section
private int someVariable;

// I also refrain from
// declaring variables outside of the constructor

// and some where in the properties section I do
public int SomeVariable
{
    get { return someVariable; }
    set { someVariable = value; }
}

These variables are constants, i.e. private static final whether they're named in all caps or not. The all-caps convention simply makes it more obvious that these variables are meant to be constants, but it isn't required. I've seen

private static final Logger log = Logger.getLogger(MyClass.class);

in lowercase before, and I'm fine with it because I know to only use the logger to log messages, but it does violate the convention. You could argue that naming it log is a sub-convention, I suppose. But in general, naming constants in uppercase isn't the One Right Way, but it is The Best Way.

Your problem is that the top and left properties require a unit of measure, not just a bare number:

div.style.top = "200px";
div.style.left = "200px";

Well for one thing use int.TryParse instead...

int id;
if (!int.TryParse(Request.QueryString["id"], out id))
{
    id = -1;
}

That assumes that "not present" should have the same result as "not an integer" of course.

EDIT: In other cases, when you're going to use request parameters as strings anyway, I think it's definitely a good idea to validate that they're present.

Explicit conversions are very clear to someone that's new to the language. Using type coercion, as others have suggested, leads to ambiguity if a developer is not aware of the coercion rules. Ultimately developer time is more costly than CPU time, so I'd optimize for the former at the cost of the latter. That being said, in this case the difference is likely negligible, but if not I'm sure there are some decent JavaScript compressors that will optimize this sort of thing.

So, for the above reasons I'd go with: n.toString() or String(n). String(n) is probably a better choice because it won't fail if n is null or undefined.

you can try to replace --> with a different string say, #END# and do search and replace with your editor when you wish to return the closing tags.

To add to bhadra's list of idiomatic guides:

Checkout Anthony Baxter's presentation on Effective Python Programming (from OSON 2005).

An excerpt:

# dict's setdefault method turns this:
if key in dictobj:
    dictobj[key].append(val)
else:
    dictobj[key] = [val]
# into this:
dictobj.setdefault(key,[]).append(val)

If the variable is declared (either with the var keyword, as a function argument, or as a global variable), I think the best way to do it is:

if (my_variable === undefined)

jQuery does it, so it's good enough for me :-)

Otherwise, you'll have to use typeof to avoid a ReferenceError.

If you expect undefined to be redefined, you could wrap your code like this:

(function(undefined){
    // undefined is now what it's supposed to be
})();

Or obtain it via the void operator:

const undefined = void 0;
// also safe

I think that moving last operator to the beginning of the next line is a good practice. That way you know right away the purpose of the second line, even it doesn't start with an operator. I also recommend 2 indentation spaces (2 tabs) for a previously broken tab, to differ it from the normal indentation. That is immediately visible as continuing previous line. Therefore I suggest this:

private static final Map<Class<? extends Persistent>, PersistentHelper> class2helper 
            = new HashMap<Class<? extends Persistent>, PersistentHelper>();

This is an old post, but if anyone comes up with this problem, i post what solved my problem:

I was trying to add the Action Bar Sherlock to my proyect when i get the error:

Error retrieving parent for item: No resource found that matches the given name 'android:Widget.Holo.ActionBar'.

I turns out that the action bar sherlock proyect and my proyect had differents minSdkVersion and targetSdkVersion. Changing that parameters to match in both proyect solved my problem.

<uses-sdk android:minSdkVersion="7" android:targetSdkVersion="17"/>

I've resorted to the following in the degenerate case where it's simply AND's or OR's.

if all( [cond1 == 'val1', cond2 == 'val2', cond3 == 'val3', cond4 == 'val4'] ):

if any( [cond1 == 'val1', cond2 == 'val2', cond3 == 'val3', cond4 == 'val4'] ):

It shaves a few characters and makes it clear that there's no subtlety to the condition.

I'm with Will:

• Double quotes for text
• Single quotes for anything that behaves like an identifier
• Double quoted raw string literals for regexps
• Tripled double quotes for docstrings

I'll stick with that even if it means a lot of escaping.

I get the most value out of single quoted identifiers standing out because of the quotes. The rest of the practices are there just to give those single quoted identifiers some standing room.

I believe those who study typography would tell you that 66 characters per a line is supposed to be the most readable width for length. Even so, if you need to debug a machine remotely over an ssh session, most terminals default to 80 characters, 79 just fits, trying to work with anything wider becomes a real pain in such a case. You would also be suprised by the number of developers using vim + screen as a day to day environment.

Some responses focus on refactoring, rather than naming conventions, as the way to improve readability. I don't feel that one can replace the other.

I've known programmers who are uncomfortable with using local declarations; they prefer to place all the declarations at the top of a block (as in C), so they know where to find them. I've found that, where scoping allows for it, declaring variables where they're first used decreases the time that I spend glancing backwards to find the declarations. (This is true for me even for small functions.) That makes it easier for me to understand the code I'm looking at.

I hope it's clear enough how this relates to member naming conventions: When members are uniformly prefixed, I never have to look back at all; I know the declaration won't even be found in the source file.

I'm sure that I didn't start out preferring these styles. Yet over time, working in environments where they were used consistently, I optimized my thinking to take advantage of them. I think it's possible that many folks who currently feel uncomfortable with them would also come to prefer them, given consistent usage.

As apparantly no one mentioned it: you can also use the Numpy Docstring Standard. It is widely used in the scientific community.

• The specification of the format from numpy together with an example
• You have a sphinx extension to render it: numpydoc
• And an example of how beautiful a rendered docstring can look like: http://docs.scipy.org/doc/numpy/reference/generated/numpy.mean.html

The Napolean sphinx extension to parse Google-style docstrings (recommended in the answer of @Nathan) also supports Numpy-style docstring, and makes a short comparison of both.

And last a basic example to give an idea how it looks like:

def func(arg1, arg2):
    """Summary line.

    Extended description of function.

    Parameters
    ----------
    arg1 : int
        Description of arg1
    arg2 : str
        Description of arg2

    Returns
    -------
    bool
        Description of return value

    See Also
    --------
    otherfunc : some related other function

    Examples
    --------
    These are written in doctest format, and should illustrate how to
    use the function.

    >>> a=[1,2,3]
    >>> print [x + 3 for x in a]
    [4, 5, 6]
    """
    return True

If you have a class Car

public class Car {
    private Color externalColor;
}

And the property Color is a class

@Data
public class Color {
    private Integer id;
    private String name;
}

And you want to convert Color to an Enum

public class CarDTO {
    private ColorEnum externalColor;
}

Simply add a method in Color class to convert Color in ColorEnum

@Data
public class Color {
    private Integer id;
    private String name;

    public ColorEnum getEnum(){
        ColorEnum.getById(id);
    }
}

and inside ColorEnum implements the method getById()

public enum ColorEnum {
...
    public static ColorEnum getById(int id) {
        for(ColorEnum e : values()) {
            if(e.id==id) 
                return e;
        }
    }
}

Now you can use a classMap

private MapperFactory factory = new DefaultMapperFactory.Builder().build();
...
factory.classMap(Car.class, CarDTO.class)
    .fieldAToB("externalColor.enum","externalColor")
    .byDefault()
    .register();
...
CarDTO dto = mapper.map(car, CarDTO.class);

In short

Summary

In its simplest form, this technique aims to wrap code inside a function scope.

It helps decreases chances of:

• clashing with other applications/libraries
• polluting superior (global most likely) scope

It does not detect when the document is ready - it is not some kind of document.onload nor window.onload

It is commonly known as an Immediately Invoked Function Expression (IIFE) or Self Executing Anonymous Function.

Code Explained

var someFunction = function(){ console.log('wagwan!'); };

(function() {                   /* function scope starts here */
  console.log('start of IIFE');

  var myNumber = 4;             /* number variable declaration */
  var myFunction = function(){  /* function variable declaration */
    console.log('formidable!'); 
  };
  var myObject = {              /* object variable declaration */
    anotherNumber : 1001, 
    anotherFunc : function(){ console.log('formidable!'); }
  };
  console.log('end of IIFE');
})();                           /* function scope ends */

someFunction();            // reachable, hence works: see in the console
myFunction();              // unreachable, will throw an error, see in the console
myObject.anotherFunc();    // unreachable, will throw an error, see in the console

In the example above, any variable defined in the function (i.e. declared using var) will be "private" and accessible within the function scope ONLY (as Vivin Paliath puts it). In other words, these variables are not visible/reachable outside the function. See live demo.

Javascript has function scoping. "Parameters and variables defined in a function are not visible outside of the function, and that a variable defined anywhere within a function is visible everywhere within the function." (from "Javascript: The Good Parts").

More details

Alternative Code

In the end, the code posted before could also be done as follows:

var someFunction = function(){ console.log('wagwan!'); };

var myMainFunction = function() {
  console.log('start of IIFE');

  var myNumber = 4;
  var myFunction = function(){ console.log('formidable!'); };
  var myObject = { 
    anotherNumber : 1001, 
    anotherFunc : function(){ console.log('formidable!'); }
  };
  console.log('end of IIFE');
};

myMainFunction();          // I CALL "myMainFunction" FUNCTION HERE
someFunction();            // reachable, hence works: see in the console
myFunction();              // unreachable, will throw an error, see in the console
myObject.anotherFunc();    // unreachable, will throw an error, see in the console

See live demo.

The Roots

Iteration 1

One day, someone probably thought "there must be a way to avoid naming 'myMainFunction', since all we want is to execute it immediately."

If you go back to the basics, you find out that:

• expression: something evaluating to a value. i.e. 3+11/x
• statement: line(s) of code doing something BUT it does not evaluate to a value. i.e. if(){}

Similarly, function expressions evaluate to a value. And one consequence (I assume?) is that they can be immediately invoked:

 var italianSayinSomething = function(){ console.log('mamamia!'); }();

So our more complex example becomes:

var someFunction = function(){ console.log('wagwan!'); };

var myMainFunction = function() {
  console.log('start of IIFE');

  var myNumber = 4;
  var myFunction = function(){ console.log('formidable!'); };
  var myObject = { 
    anotherNumber : 1001, 
    anotherFunc : function(){ console.log('formidable!'); }
  };
  console.log('end of IIFE');
}();

someFunction();            // reachable, hence works: see in the console
myFunction();              // unreachable, will throw an error, see in the console
myObject.anotherFunc();    // unreachable, will throw an error, see in the console

See live demo.

Iteration 2

The next step is the thought "why have var myMainFunction = if we don't even use it!?".

The answer is simple: try removing this, such as below:

 function(){ console.log('mamamia!'); }();

See live demo.

It won't work because "function declarations are not invokable".

The trick is that by removing var myMainFunction = we transformed the function expression into a function declaration. See the links in "Resources" for more details on this.

The next question is "why can't I keep it as a function expression with something other than var myMainFunction =?

The answer is "you can", and there are actually many ways you could do this: adding a +, a !, a -, or maybe wrapping in a pair of parenthesis (as it's now done by convention), and more I believe. As example:

 (function(){ console.log('mamamia!'); })(); // live demo: jsbin.com/zokuwodoco/1/edit?js,console.

or

 +function(){ console.log('mamamia!'); }(); // live demo: jsbin.com/wuwipiyazi/1/edit?js,console

or

 -function(){ console.log('mamamia!'); }(); // live demo: jsbin.com/wejupaheva/1/edit?js,console

• What does the exclamation mark do before the function?
• JavaScript plus sign in front of function name

So once the relevant modification is added to what was once our "Alternative Code", we return to the exact same code as the one used in the "Code Explained" example

var someFunction = function(){ console.log('wagwan!'); };

(function() {
  console.log('start of IIFE');

  var myNumber = 4;
  var myFunction = function(){ console.log('formidable!'); };
  var myObject = { 
    anotherNumber : 1001, 
    anotherFunc : function(){ console.log('formidable!'); }
  };
  console.log('end of IIFE');
})();

someFunction();            // reachable, hence works: see in the console
myFunction();              // unreachable, will throw an error, see in the console
myObject.anotherFunc();    // unreachable, will throw an error, see in the console

Read more about Expressions vs Statements:

• developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Expressions_and_Operators
• developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions#Function_constructor_vs._function_declaration_vs._function_expression
• Javascript: difference between a statement and an expression?
• Expression Versus Statement

Demystifying Scopes

One thing one might wonder is "what happens when you do NOT define the variable 'properly' inside the function -- i.e. do a simple assignment instead?"

(function() {
  var myNumber = 4;             /* number variable declaration */
  var myFunction = function(){  /* function variable declaration */
    console.log('formidable!'); 
  };
  var myObject = {              /* object variable declaration */
    anotherNumber : 1001, 
    anotherFunc : function(){ console.log('formidable!'); }
  };
  myOtherFunction = function(){  /* oops, an assignment instead of a declaration */
    console.log('haha. got ya!');
  };
})();
myOtherFunction();         // reachable, hence works: see in the console
window.myOtherFunction();  // works in the browser, myOtherFunction is then in the global scope
myFunction();              // unreachable, will throw an error, see in the console

See live demo.

Basically, if a variable that was not declared in its current scope is assigned a value, then "a look up the scope chain occurs until it finds the variable or hits the global scope (at which point it will create it)".

When in a browser environment (vs a server environment like nodejs) the global scope is defined by the window object. Hence we can do window.myOtherFunction().

My "Good practices" tip on this topic is to always use var when defining anything: whether it's a number, object or function, & even when in the global scope. This makes the code much simpler.

Note:

• javascript does not have block scope (Update: block scope local variables added in ES6.)
• javascript has only function scope & global scope (window scope in a browser environment)

Read more about Javascript Scopes:

• What is the purpose of the var keyword and when to use it (or omit it)?
• What is the scope of variables in JavaScript?

Resources

• youtu.be/i_qE1iAmjFg?t=2m15s - Paul Irish presents the IIFE at min 2:15, do watch this!
• developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions
• Book: Javascript, the good parts - highly recommended
• youtu.be/i_qE1iAmjFg?t=4m36s - Paul Irish presents the module pattern at 4:36

Next Steps

Once you get this IIFE concept, it leads to the module pattern, which is commonly done by leveraging this IIFE pattern. Have fun :)

When you say "a matrix of random numbers", you can use numpy as Pavel https://stackoverflow.com/a/15451997/6169225 mentioned above, in this case I'm assuming to you it is irrelevant what distribution these (pseudo) random numbers adhere to.

However, if you require a particular distribution (I imagine you are interested in the uniform distribution), numpy.random has very useful methods for you. For example, let's say you want a 3x2 matrix with a pseudo random uniform distribution bounded by [low,high]. You can do this like so:

numpy.random.uniform(low,high,(3,2))

Note, you can replace uniform by any number of distributions supported by this library.

Further reading: https://docs.scipy.org/doc/numpy/reference/routines.random.html

There are good things to say about having a single exit-point, just as there are bad things to say about the inevitable "arrow" programming that results.

If using multiple exit points during input validation or resource allocation, I try to put all the 'error-exits' very visibly at the top of the function.

Both the Spartan Programming article of the "SSDSLPedia" and the single function exit point article of the "Portland Pattern Repository's Wiki" have some insightful arguments around this. Also, of course, there is this post to consider.

If you really want a single exit-point (in any non-exception-enabled language) for example in order to release resources in one single place, I find the careful application of goto to be good; see for example this rather contrived example (compressed to save screen real-estate):

int f(int y) {
    int value = -1;
    void *data = NULL;

    if (y < 0)
        goto clean;

    if ((data = malloc(123)) == NULL)
        goto clean;

    /* More code */

    value = 1;
clean:
   free(data);
   return value;
}

Personally I, in general, dislike arrow programming more than I dislike multiple exit-points, although both are useful when applied correctly. The best, of course, is to structure your program to require neither. Breaking down your function into multiple chunks usually help :)

Although when doing so, I find I end up with multiple exit points anyway as in this example, where some larger function has been broken down into several smaller functions:

int g(int y) {
  value = 0;

  if ((value = g0(y, value)) == -1)
    return -1;

  if ((value = g1(y, value)) == -1)
    return -1;

  return g2(y, value);
}

Depending on the project or coding guidelines, most of the boiler-plate code could be replaced by macros. As a side note, breaking it down this way makes the functions g0, g1 ,g2 very easy to test individually.

Obviously, in an OO and exception-enabled language, I wouldn't use if-statements like that (or at all, if I could get away with it with little enough effort), and the code would be much more plain. And non-arrowy. And most of the non-final returns would probably be exceptions.

In short;

• Few returns are better than many returns
• More than one return is better than huge arrows, and guard clauses are generally ok.
• Exceptions could/should probably replace most 'guard clauses' when possible.

For footer change from position: relative; to position:fixed;

 footer {
            background-color: #333;
            width: 100%;
            bottom: 0;
            position: fixed;
        }

Example: http://jsfiddle.net/a6RBm/

For this to work, your font also needs to be set to monospace.
If you think about it, lines can't otherwise line up perfectly perfectly.

This answer is detailed at sublime text forum:
http://www.sublimetext.com/forum/viewtopic.php?f=3&p=42052
This answer has links for choosing an appropriate font for your OS,
and gives an answer to an edge case of fonts not lining up.

Another website that lists great monospaced free fonts for programmers. http://hivelogic.com/articles/top-10-programming-fonts

On stackoverflow, see:

Michael Ruth's answer here: How to make ruler always be shown in Sublime text 2?

MattDMo's answer here: What is the default font of Sublime Text?

I have rulers set at the following:
30
50 (git commit message titles should be limited to 50 characters)
72 (git commit message details should be limited to 72 characters)
80 (Windows Command Console Window maxes out at 80 character width)

Other viewing environments that benefit from shorter lines: github: there is no word wrap when viewing a file online
So, I try to keep .js .md and other files at 70-80 characters.
Windows Console: 80 characters.

Assume that you've defined do_something as a function, and you'd like to perform it N times. Maybe you can try the following:

todos = [do_something] * N  
for doit in todos:  
    doit()

I hate it when the use of multiple returns is banned.

Generally, the "specialized structure" actually IS a sensible current state of an object, with its own methods.

class Some3SpaceThing(object):
  def __init__(self,x):
    self.g(x)
  def g(self,x):
    self.y0 = x + 1
    self.y1 = x * 3
    self.y2 = y0 ** y3

r = Some3SpaceThing( x )
r.y0
r.y1
r.y2

I like to find names for anonymous structures where possible. Meaningful names make things more clear.

Code in headers is generally a bad idea since it forces recompilation of all files that includes the header when you change the actual code rather than the declarations. It will also slow down compilation since you'll need to parse the code in every file that includes the header.

A reason to have code in header files is that it's generally needed for the keyword inline to work properly and when using templates that's being instanced in other cpp files.

The answer is simpler than people are making it.

There's no technical advantage either way, and "x is not y" is what everybody else uses, which makes it the clear winner. It doesn't matter that it "looks more like English" or not; everyone uses it, which means every user of Python--even Chinese users, whose language Python looks nothing like--will understand it at a glance, where the slightly less common syntax will take a couple extra brain cycles to parse.

Don't be different just for the sake of being different, at least in this field.

I think the C++11 approach would be more like this now.

#include <string>
#include <iostream>
#include <functional>

template<typename T>
class LambdaSetter {
public:
    LambdaSetter() :
        getter([&]() -> T { return m_value; }),
        setter([&](T value) { m_value = value; }),
        m_value()
    {}

    T operator()() { return getter(); }
    void operator()(T value) { setter(value); }

    LambdaSetter operator=(T rhs)
    {
        setter(rhs);
        return *this;
    }

    T operator=(LambdaSetter rhs)
    {
        return rhs.getter();
    }

    operator T()
    { 
        return getter();
    }


    void SetGetter(std::function<T()> func) { getter = func; }
    void SetSetter(std::function<void(T)> func) { setter = func; }

    T& GetRawData() { return m_value; }

private:
    T m_value;
    std::function<const T()> getter;
    std::function<void(T)> setter;

    template <typename TT>
    friend std::ostream & operator<<(std::ostream &os, const LambdaSetter<TT>& p);

    template <typename TT>
    friend std::istream & operator>>(std::istream &is, const LambdaSetter<TT>& p);
};

template <typename T>
std::ostream & operator<<(std::ostream &os, const LambdaSetter<T>& p)
{
    os << p.getter();
    return os;
}

template <typename TT>
std::istream & operator>>(std::istream &is, const LambdaSetter<TT>& p)
{
    TT value;
    is >> value;
    p.setter(value);
    return is;
}


class foo {
public:
    foo()
    {
        myString.SetGetter([&]() -> std::string { 
            myString.GetRawData() = "Hello";
            return myString.GetRawData();
        });
        myString2.SetSetter([&](std::string value) -> void { 
            myString2.GetRawData() = (value + "!"); 
        });
    }


    LambdaSetter<std::string> myString;
    LambdaSetter<std::string> myString2;
};

int _tmain(int argc, _TCHAR* argv[])
{
    foo f;
    std::string hi = f.myString;

    f.myString2 = "world";

    std::cout << hi << " " << f.myString2 << std::endl;

    std::cin >> f.myString2;

    std::cout << hi << " " << f.myString2 << std::endl;

    return 0;
}

I tested this in Visual Studio 2013. Unfortunately in order to use the underlying storage inside the LambdaSetter I needed to provide a "GetRawData" public accessor which can lead to broken encapsulation, but you can either leave it out and provide your own storage container for T or just ensure that the only time you use "GetRawData" is when you are writing a custom getter/setter method.

Minimalistic, not-over-the-top approach. Only the 79th character of lines that are too long gets highlighted. It overcomes a few common problems: works on new windows, overflowing words are highlighted properly.

augroup collumnLimit
  autocmd!
  autocmd BufEnter,WinEnter,FileType scala,java
        \ highlight CollumnLimit ctermbg=DarkGrey guibg=DarkGrey
  let collumnLimit = 79 " feel free to customize
  let pattern =
        \ '\%<' . (collumnLimit+1) . 'v.\%>' . collumnLimit . 'v'
  autocmd BufEnter,WinEnter,FileType scala,java
        \ let w:m1=matchadd('CollumnLimit', pattern, -1)
augroup END

Note: notice the FileType scala,java this limits this to Scala and Java source files. You'll probably want to customize this. If you were to omit it, it would work on all file types.

os.path works in a funny way. It looks like os should be a package with a submodule path, but in reality os is a normal module that does magic with sys.modules to inject os.path. Here's what happens:

• When Python starts up, it loads a bunch of modules into sys.modules. They aren't bound to any names in your script, but you can access the already-created modules when you import them in some way.

  • sys.modules is a dict in which modules are cached. When you import a module, if it already has been imported somewhere, it gets the instance stored in sys.modules.

• os is among the modules that are loaded when Python starts up. It assigns its path attribute to an os-specific path module.

• It injects sys.modules['os.path'] = path so that you're able to do "import os.path" as though it was a submodule.

I tend to think of os.path as a module I want to use rather than a thing in the os module, so even though it's not really a submodule of a package called os, I import it sort of like it is one and I always do import os.path. This is consistent with how os.path is documented.

Incidentally, this sort of structure leads to a lot of Python programmers' early confusion about modules and packages and code organization, I think. This is really for two reasons

1. If you think of os as a package and know that you can do import os and have access to the submodule os.path, you may be surprised later when you can't do import twisted and automatically access twisted.spread without importing it.

2. It is confusing that os.name is a normal thing, a string, and os.path is a module. I always structure my packages with empty __init__.py files so that at the same level I always have one type of thing: a module/package or other stuff. Several big Python projects take this approach, which tends to make more structured code.

I made an experiment using the magic method __call. Not sure if I should post it (because of all the "DO NOT USE MAGIC METHODS" warnings in the other answers and comments) but i'll leave it here.. just in case someone find it useful.

public function __call($_name, $_arguments){
    $action  = substr($_name, 0, 4);
    $varName = substr($_name, 4);

    if (isset($this->{$varName})){
        if ($action === "get_") return $this->{$varName};
        if ($action === "set_") $this->{$varName} = $_arguments[0];
    }
}

Just add that method above in your class, now you can type:

class MyClass{
    private foo = "bar";
    private bom = "bim";
    // ...
    // public function __call(){ ... }
    // ...
}
$C = new MyClass();

// as getter
$C->get_foo(); // return "bar"
$C->get_bom(); // return "bim"

// as setter
$C->set_foo("abc"); // set "abc" as new value of foo
$C->set_bom("zam"); // set "zam" as new value of bom

This way you can get/set everything in your class if it exist so, if you need it for only a few specific elements, you could use a "whitelist" as filter.

Example:

private $callWhiteList = array(
    "foo" => "foo",
    "fee" => "fee",
    // ...
);

public function __call($_name, $_arguments){
    $action  = substr($_name, 0, 4);
    $varName = $this->callWhiteList[substr($_name, 4)];

    if (!is_null($varName) && isset($this->{$varName})){
        if ($action === "get_") return $this->{$varName};
        if ($action === "set_") $this->{$varName} = $_arguments[0];
    }
}

Now you can only get/set "foo" and "fee".
You can also use that "whitelist" to assign custom names to access to your vars.
For example,

private $callWhiteList = array(
    "myfoo" => "foo",
    "zim" => "bom",
    // ...
);

With that list you can now type:

class MyClass{
    private foo = "bar";
    private bom = "bim";
    // ...
    // private $callWhiteList = array( ... )
    // public function __call(){ ... }
    // ...
}
$C = new MyClass();

// as getter
$C->get_myfoo(); // return "bar"
$C->get_zim(); // return "bim"

// as setter
$C->set_myfoo("abc"); // set "abc" as new value of foo
$C->set_zim("zam"); // set "zam" as new value of bom

.
.
.
That's all.

Doc: __call() is triggered when invoking inaccessible methods in an object context.

Readability

In addition to startup performance, there is a readability argument to be made for localizing import statements. For example take python line numbers 1283 through 1296 in my current first python project:

listdata.append(['tk font version', font_version])
listdata.append(['Gtk version', str(Gtk.get_major_version())+"."+
                 str(Gtk.get_minor_version())+"."+
                 str(Gtk.get_micro_version())])

import xml.etree.ElementTree as ET

xmltree = ET.parse('/usr/share/gnome/gnome-version.xml')
xmlroot = xmltree.getroot()
result = []
for child in xmlroot:
    result.append(child.text)
listdata.append(['Gnome version', result[0]+"."+result[1]+"."+
                 result[2]+" "+result[3]])

If the import statement was at the top of file I would have to scroll up a long way, or press Home, to find out what ET was. Then I would have to navigate back to line 1283 to continue reading code.

Indeed even if the import statement was at the top of the function (or class) as many would place it, paging up and back down would be required.

Displaying the Gnome version number will rarely be done so the import at top of file introduces unnecessary startup lag.

Use CSSStyleDeclaration.setProperty() method inside the Object.entries of styles object.
We can also set the priority ("important") for CSS property with this.
We will use "hypen-case" CSS property names.

const styles = {_x000D_
  "font-size": "18px",_x000D_
  "font-weight": "bold",_x000D_
  "background-color": "lightgrey",_x000D_
  color: "red",_x000D_
  "padding": "10px !important",_x000D_
  margin: "20px",_x000D_
  width: "100px !important",_x000D_
  border: "1px solid blue"_x000D_
};_x000D_
_x000D_
const elem = document.getElementById("my_div");_x000D_
_x000D_
Object.entries(styles).forEach(([prop, val]) => {_x000D_
  const [value, pri = ""] = val.split("!");_x000D_
  elem.style.setProperty(prop, value, pri);_x000D_
});

<div id="my_div"> Hello </div>

this is better function

function RGB2HTML(red, green, blue)
{
    var decColor =0x1000000+ blue + 0x100 * green + 0x10000 *red ;
    return '#'+decColor.toString(16).substr(1);
}

I wrote all about tabs in vim, which gives a few interesting things you didn't ask about. To automatically indent braces, use:

:set cindent

To indent two spaces (instead of one tab of eight spaces, the vim default):

:set shiftwidth=2

To keep vim from converting eight spaces into tabs:

:set expandtab

If you ever want to change the indentation of a block of text, use < and >. I usually use this in conjunction with block-select mode (v, select a block of text, < or >).

(I'd try to talk you out of using two-space indentation, since I (and most other people) find it hard to read, but that's another discussion.)

Enums are classes and should follow the conventions for classes. Instances of an enum are constants and should follow the conventions for constants. So

enum Fruit {APPLE, ORANGE, BANANA, PEAR};

There is no reason for writing FruitEnum any more than FruitClass. You are just wasting four (or five) characters that add no information.

Java itself recommends this approach and it is used in their examples.

Either approach works. But if you have a long list of optional parameters make a default constructor and then have your set function return a reference to this. Then chain the settors.

class Thingy2
{
public:
    enum Color{red,gree,blue};
    Thingy2();

    Thingy2 & color(Color);
    Color color()const;

    Thingy2 & length(double);
    double length()const;
    Thingy2 & width(double);
    double width()const;
    Thingy2 & height(double);
    double height()const;

    Thingy2 & rotationX(double);
    double rotationX()const;
    Thingy2 & rotatationY(double);
    double rotatationY()const;
    Thingy2 & rotationZ(double);
    double rotationZ()const;
}

main()
{
    // gets default rotations
    Thingy2 * foo=new Thingy2().color(ret)
        .length(1).width(4).height(9)
    // gets default color and sizes
    Thingy2 * bar=new Thingy2()
        .rotationX(0.0).rotationY(PI),rotationZ(0.5*PI);
    // everything specified.
    Thingy2 * thing=new Thingy2().color(ret)
        .length(1).width(4).height(9)
        .rotationX(0.0).rotationY(PI),rotationZ(0.5*PI);
}

Now when constructing the objects you can pick an choose which properties to override and which ones you have set are explicitly named. Much more readable :)

Also, you no longer have to remember the order of the arguments to the constructor.

I don't think it will make a significant difference in compile time but #pragma once is very well supported across compilers but not actually part of the standard. The preprocessor may be a little faster with it as it is more simple to understand your exact intent.

#pragma once is less prone to making mistakes and it is less code to type.

To speed up compile time more just forward declare instead of including in .h files when you can.

I prefer to use #pragma once.

See this wikipedia article about the possibility of using both.

I've gotten around this with

mystr = ' '.join(
        ["Why, hello there",
         "wonderful stackoverflow people!"])

in the past. It's not perfect, but it works nicely for very long strings that need to not have line breaks in them.

Personally more than anything I would change the logic, or look at the business rules to see if they dictate any potential naming.

Since, the actual condition that toggles the boolean is actually the act of being "last". I would say that switching the logic, and naming it "IsLastItem" or similar would be a more preferred method.

I've seen this idiom employed in many codes and I'm pretty sure I've even seen it somewhere in Boost's libraries. However, as far as I remember the most common name is base (or Base) instead of super.

This idiom is especially useful if working with template classes. As an example, consider the following class (from a real project):

template <typename TText, typename TSpec>
class Finder<Index<TText, PizzaChili<TSpec> >, PizzaChiliFinder>
    : public Finder<Index<TText, PizzaChili<TSpec> >, Default>
{
    typedef Finder<Index<TText, PizzaChili<TSpec> >, Default> TBase;
    // …
}

Don't mind the funny names. The important point here is that the inheritance chain uses type arguments to achieve compile-time polymorphism. Unfortunately, the nesting level of these templates gets quite high. Therefore, abbreviations are crucial for readability and maintainability.

The reason why you don't see such practice is quite subjective and cannot have a definite answer, because I have seen many of the code which uses your mentioned way rather than iterator style code.

Following can be reasons of people not considering vector.size() way of looping:

1. Being paranoid about calling size() every time in the loop condition. However either it's a non-issue or it can be trivially fixed
2. Preferring std::for_each() over the for loop itself
3. Later changing the container from std::vector to other one (e.g. map, list) will also demand the change of the looping mechanism, because not every container support size() style of looping

C++11 provides a good facility to move through the containers. That is called "range based for loop" (or "enhanced for loop" in Java).

With little code you can traverse through the full (mandatory!) std::vector:

vector<int> vi;
...
for(int i : vi) 
  cout << "i = " << i << endl;

Did you forget to add the init.py in your package?

If you want to treat a null as false, then I would say that the most succinct way to do that is to use the null coalesce operator (??), as you describe:

if (nullableBool ?? false) { ... }

Just in case someone wants to do it for exact matches of strings, you can use the -w flag in grep - w for whole. That is, for example if you want to delete the lines that have number 11, but keep the lines with number 111:

-bash-4.1$ head file
1
11
111

-bash-4.1$ grep -v "11" file
1

-bash-4.1$ grep -w -v "11" file
1
111

It also works with the -f flag if you want to exclude several exact patterns at once. If "blacklist" is a file with several patterns on each line that you want to delete from "file":

grep -w -v -f blacklist file

I consider myself a complete newbie, but I think I have an extremely simple answer to one of the original subquestions that has not been stated here: accessing the data frames, or parts of it.

Let's start by creating the list with data frames as was stated above:

d1 <- data.frame(y1 = c(1, 2, 3), y2 = c(4, 5, 6))

d2 <- data.frame(y1 = c(3, 2, 1), y2 = c(6, 5, 4))

my.list <- list(d1, d2)

Then, if you want to access a specific value in one of the data frames, you can do so by using the double brackets sequentially. The first set gets you into the data frame, and the second set gets you to the specific coordinates:

my.list[[1]][[3,2]]

[1] 6

The std::mismatch method can serve this purpose when used to backwards iterate from the end of both strings:

const string sNoFruit = "ThisOneEndsOnNothingMuchFruitLike";
const string sOrange = "ThisOneEndsOnOrange";

const string sPattern = "Orange";

assert( mismatch( sPattern.rbegin(), sPattern.rend(), sNoFruit.rbegin() )
          .first != sPattern.rend() );

assert( mismatch( sPattern.rbegin(), sPattern.rend(), sOrange.rbegin() )
          .first == sPattern.rend() );

I suggest doing:

1. Search either with * to do a "bounded search" for what's under the cursor, or do a standard /pattern search.
2. Use :%s///gn to get the number of occurrences. Or you can use :%s///n to get the number of lines with occurrences.

** I really with I could find a plug-in that would giving messaging of "match N of N₁ on N₂ lines" with every search, but alas.

Note: Don't be confused by the tricky wording of the output. The former command might give you something like 4 matches on 3 lines where the latter might give you 3 matches on 3 lines. While technically accurate, the latter is misleading and should say '3 lines match'. So, as you can see, there really is never any need to use the latter ('n' only) form. You get the same info, more clearly, and more by using the 'gn' form.

Update

Note: this answer was originally written with regard to older versions of SourceTree for Windows, and is now out-of-date.

See my new answer for the current version of SourceTree for Windows, 1.5.2.0. I'm leaving this answer behind for historical purposes.

Original Answer

as I'm on Windows I don't have a command line tool nor do I know how to use one :( Is it the only way to get that sorted out? The GUI doesn't cover all the git's functions? — Original Poster

Regarding Git GUIs, no, they don't cover all of Git's functions. They don't even come close. I suggest you check out one of the answers in How do I edit an incorrect commit message in Git?, Git is flexible enough that there are multiple solutions...from the command line.

SourceTree might actually come with the msysgit bash shell already, or it might be able to use the standard Windows command shell. Either way, you open it up form SourceTree by clicking the Terminal button:

You set which terminal SourceTree uses (bash or Windows) here:

One way to solve the problem in SourceTree

That being said, here's one way you can do it in SourceTree. Since you mentioned in the comments that you don't mind "reverting back to the faulty commit" (by which I assume you actually mean resetting, which is a different operation in Git), then here are the steps:

1. Do a hard reset in SourceTree to the bad commit by right-clicking on it and selecting Reset current branch to this commit, and selecting the hard reset option from the drop down.
2. Click the Commit button, then
3. Click on the checkbox at the bottom that says "Amend latest commit".
4. Make the changes you want to the message, then click Commit again. Voila!

Regarding this comment:

if it's not possible because it's already pushed to Bitbucket, I would not mind creating a new repository and starting over.

Does this mean that you're the only person working on the repo? This is important because it's not trivial to change the history of a repo (like by amending a commit) without causing problems for your collaborators. However, assuming that you're the only person working on the repo, then the next thing you would want to do is force push your changed history to the remote.

Be aware, though, that because you did a hard reset to the faulty commit, then force pushing causes you to lose all work that come after it previously. If that's okay, then you might need to use the following command at the command line to do the force push, because I couldn't find an option to do it in SourceTree:

git push remote-repo head -f

This also assumes that BitBucket will allow you to force push to a repo.

You should really learn how to use Git from the command line anyways though, it'll make you more proficient in Git. #ProTip, use msysgit and turn on Quick Edit mode on in the terminal properties, so that you can double click to highlight a line of text, right click to copy, and right click again to paste. It's pretty quick.

PostgreSQL Forging Key DELETE, UPDATE CASCADE

CREATE TABLE apps_user(
  user_id SERIAL PRIMARY KEY,
  username character varying(30),
  userpass character varying(50),
  created_on DATE
);

CREATE TABLE apps_profile(
    pro_id SERIAL PRIMARY KEY,
    user_id INT4 REFERENCES apps_user(user_id) ON DELETE CASCADE ON UPDATE CASCADE,
    firstname VARCHAR(30),
    lastname VARCHAR(50),
    email VARCHAR UNIQUE,
    dob DATE
);

Just have something like this where you traverse till the given position and then insert:

void addNodeAtPos(int data, int pos)
{
  Node* prev = new Node();
  Node* curr = new Node();
  Node* newNode = new Node();
  newNode->data = data;

  int tempPos = 0;   // Traverses through the list

  curr = head;      // Initialize current to head;
  if(head != NULL)
  {
    while(curr->next != NULL && tempPos != pos)
    {
        prev = curr;
        curr = curr->next;
        tempPos++;
    }
    if(pos==0)
    {
       cout << "Adding at Head! " << endl;
       // Call function to addNode from head;
    }
    else if(curr->next == NULL && pos == tempPos+1)
    {
      cout << "Adding at Tail! " << endl;
      // Call function to addNode at tail;
    }
    else if(pos > tempPos+1)
      cout << " Position is out of bounds " << endl;
     //Position not valid

    else
    {
        prev->next = newNode;
        newNode->next = curr;
        cout << "Node added at position: " << pos << endl;
    }
 }
 else
 {
    head = newNode;
    newNode->next=NULL;
    cout << "Added at head as list is empty! " << endl;
 }
}

I had this same problem. For me, the reason turned out to be that I had a mismatch in the name of the class and the name of the file. I declared class "GenSig" in a file called "SignatureTester.java".

I changed the name of the class to "SignatureTester", and the "Run as Java Application" option showed up immediately.

I tried to edit the answer provided by marc_s however it wasn't accepted for some reason. It formats the sql for easier reading, includes the schema and also names the Default name so that this can easily be pasted into other code.

  SELECT SchemaName = s.Name,
         TableName = t.Name,
         ColumnName = c.Name,
         DefaultName = dc.Name,
         DefaultDefinition = dc.Definition
    FROM sys.schemas                s
    JOIN sys.tables                 t   on  t.schema_id          = s.schema_id
    JOIN sys.default_constraints    dc  on  dc.parent_object_id  = t.object_id 
    JOIN sys.columns                c   on  c.object_id          = dc.parent_object_id
                                        and c.column_id          = dc.parent_column_id
ORDER BY s.Name, t.Name, c.name

In addition to all of the other answers, if you are sending HTML emails that contain URLs as linking text, make sure that the URL matches the linking text. I know that Thunderbird automatically flags them as being a scam if not.

The wrong way:

Go to your account now: <a href="http://www.paypal.com.phishers-anonymous.org/">http://www.paypal.com</a>

The right way:

Go to your account now: <a href="http://www.yourdomain.org/">http://www.yourdomain.org</a>

Or use an unrelated linking text instead of a URL:

<a href="http://www.yourdomain.org/">Click here to go to your account</a>

pprint and dir together work great

Why don't you just save/serve the CSS file as UTF-8?

nav a:hover:after {
    content: "?";
}

If that's not good enough, and you want to keep it all-ASCII:

nav a:hover:after {
    content: "\2193";
}

The general format for a Unicode character inside a string is \000000 to \FFFFFF – a backslash followed by six hexadecimal digits. You can leave out leading 0 digits when the Unicode character is the last character in the string or when you add a space after the Unicode character. See the spec below for full details.

Relevant part of the CSS2 spec:

Third, backslash escapes allow authors to refer to characters they cannot easily put in a document. In this case, the backslash is followed by at most six hexadecimal digits (0..9A..F), which stand for the ISO 10646 ([ISO10646]) character with that number, which must not be zero. (It is undefined in CSS 2.1 what happens if a style sheet does contain a character with Unicode codepoint zero.) If a character in the range [0-9a-fA-F] follows the hexadecimal number, the end of the number needs to be made clear. There are two ways to do that:

1. with a space (or other white space character): "\26 B" ("&B"). In this case, user agents should treat a "CR/LF" pair (U+000D/U+000A) as a single white space character.
2. by providing exactly 6 hexadecimal digits: "\000026B" ("&B")

In fact, these two methods may be combined. Only one white space character is ignored after a hexadecimal escape. Note that this means that a "real" space after the escape sequence must be doubled.

If the number is outside the range allowed by Unicode (e.g., "\110000" is above the maximum 10FFFF allowed in current Unicode), the UA may replace the escape with the "replacement character" (U+FFFD). If the character is to be displayed, the UA should show a visible symbol, such as a "missing character" glyph (cf. 15.2, point 5).

• Note: Backslash escapes are always considered to be part of an identifier or a string (i.e., "\7B" is not punctuation, even though "{" is, and "\32" is allowed at the start of a class name, even though "2" is not).
  The identifier "te\st" is exactly the same identifier as "test".

Comprehensive list: Unicode Character 'DOWNWARDS ARROW' (U+2193).

Try this

#movie_item {
    display: block;
    margin-top: 10px;
    height: 175px;
}

.movie_item_poster {
    float: left;
    height: 150px;
    width: 100px;
    background: red;
}

#movie_item_content {
    float: left;
    background: gold;
}

.movie_item_content_title {
    display: block;
}

.movie_item_content_year {
    float: right;
}

.movie_item_content_plot {
    display: block;

}

.movie_item_toolbar {
    clear: both;
    vertical-align: bottom;
    width: 100%;
    height: 25px;
}

In Html

<div id="movie_item">
    <div class="movie_item_poster">
        <img src="..." style="max-width: 100%; max-height: 100%;">
    </div>

     <div id="movie_item_content">
            <div class="movie_item_content_year">(1890-)</div>
        <div class="movie_item_content_title">title my film is a long word</div>
        <div class="movie_item_content_plot">Lorem ipsum dolor sit amet, consectetur adipisicing elit. Officia, ratione, aliquam, earum, quibusdam libero rerum iusto exercitationem reiciendis illo corporis nulla ducimus suscipit nisi dolore explicabo. Accusantium porro reprehenderit ad!</div>
    </div>

    <div class="movie_item_toolbar">
        Lorem Ipsum...
    </div>
</div>

I change position div year.

If you are using Windows, you should set the same environment variables, but Windows style:

set http_proxy=<your_http_proxy:proxy_port>
set https_proxy=<your_https_proxy:proxy_port>

That will work for your current cmd.exe. If you want to do this more permanent, y suggest you to use environment variables on your system.

In HTML there's an autofocus attribute to all form fields. There's a good tutorial on it in Dive Into HTML 5. Unfortunately it's currently not supported by IE versions less than 10.

To use the HTML 5 attribute and fall back to a JS option:

<input id="my-input" autofocus="autofocus" />
<script>
  if (!("autofocus" in document.createElement("input"))) {
    document.getElementById("my-input").focus();
  }
</script>

No jQuery, onload or event handlers are required, because the JS is below the HTML element.

Edit: another advantage is that it works with JavaScript off in some browsers and you can remove the JavaScript when you don't want to support older browsers.

Edit 2: Firefox 4 now supports the autofocus attribute, just leaving IE without support.

Note if you are using https.request do not directly use the body from res.on('data',... This will fail if you have a large data coming in chunks. So you need to concatenate all the data and then process the response in res.on('end'. Example -

  var options = {
    hostname: "www.google.com",
    port: 443,
    path: "/upload",
    method: 'POST',
    headers: {
      'Content-Type': 'application/json',
      'Content-Length': Buffer.byteLength(post_data)
    }
  };

  //change to http for local testing
  var req = https.request(options, function (res) {
    res.setEncoding('utf8');

    var body = '';

    res.on('data', function (chunk) {
      body = body + chunk;
    });

    res.on('end',function(){
      console.log("Body :" + body);
      if (res.statusCode != 200) {
        callback("Api call failed with response code " + res.statusCode);
      } else {
        callback(null);
      }
    });

  });

  req.on('error', function (e) {
    console.log("Error : " + e.message);
    callback(e);
  });

  // write data to request body
  req.write(post_data);
  req.end();

Another way :

change BOT_USER_NAME before use

https://telegram.me/BOT_USER_NAME?startgroup=true

Following link gives very good explanation on SaaS, PaaS and Iaas.. http://opensourceforgeeks.blogspot.in/2015/01/difference-between-saas-paas-and-iaas.html

Just some brief:

IaaS, here vendor provides infra to user where an user gets hardware/virtualization infra, storage and Networking infra.

PaaS, here vendor provides platform to user where an user gets all required things for their work like OS, Database, Execution Environment along with IaaS provided environment. So pass is platform + IaaS.

SaaS seems to be quite wide area where vendor provides almost everything from infra to platform to software. So SaaS is Iaas+PaaS along with different softwares like ms office, virtual box etc..

Use ClassLoader#getResource() instead if its URI represents a valid local disk file system path.

URL resource = classLoader.getResource("resource.ext");
File file = new File(resource.toURI());
FileInputStream input = new FileInputStream(file);
// ...

If it doesn't (e.g. JAR), then your best bet is to copy it into a temporary file.

Path temp = Files.createTempFile("resource-", ".ext");
Files.copy(classLoader.getResourceAsStream("resource.ext"), temp, StandardCopyOption.REPLACE_EXISTING);
FileInputStream input = new FileInputStream(temp.toFile());
// ...

That said, I really don't see any benefit of doing so, or it must be required by a poor helper class/method which requires FileInputStream instead of InputStream. If you can, just fix the API to ask for an InputStream instead. If it's a 3rd party one, by all means report it as a bug. I'd in this specific case also put question marks around the remainder of that API.

It's best not to target any specific resolution, but to adapt easily to many different resolutions.

If it is "pretty large" file, then access the lines sequentially and don't read the whole file into memory:

with open('largeFile', 'r') as inF:
    for line in inF:
        if 'myString' in line:
            # do_something

The conventional syntax is d[key] = value, but if your keyboard is missing the square bracket keys you could also do:

d.__setitem__(key, value)

In fact, defining __getitem__ and __setitem__ methods is how you can make your own class support the square bracket syntax. See https://python.developpez.com/cours/DiveIntoPython/php/endiveintopython/object_oriented_framework/special_class_methods.php

you may check this equation i think it will help

SELECT id, ( 3959 * acos( cos( radians(37) ) * cos( radians( lat ) ) * cos( radians( lng ) - radians(-122) ) + sin( radians(37) ) * sin( radians( lat ) ) ) ) AS distance FROM markers HAVING distance < 25 ORDER BY distance LIMIT 0 , 20;

Right-click the icon, then click Properties. In the properties window, go to the Compatibility tab. There should be a checkbox labeled "Run this program as an administrator." Check that, then click OK. The next time you run the application from that shortcut, it will automatically run as the admin.

From the excellent resources available at RStudio's Sparklyr package page:

SPARK DEFINITIONS:

It may be useful to provide some simple definitions for the Spark nomenclature:

Node: A server

Worker Node: A server that is part of the cluster and are available to run Spark jobs

Master Node: The server that coordinates the Worker nodes.

Executor: A sort of virtual machine inside a node. One Node can have multiple Executors.

Driver Node: The Node that initiates the Spark session. Typically, this will be the server where sparklyr is located.

Driver (Executor): The Driver Node will also show up in the Executor list.

I don't endorse this solution in any way, shape or form. But if you add a variable to the __builtin__ module, it will be accessible as if a global from any other module that includes __builtin__ -- which is all of them, by default.

a.py contains

print foo

b.py contains

import __builtin__
__builtin__.foo = 1
import a

The result is that "1" is printed.

Edit: The __builtin__ module is available as the local symbol __builtins__ -- that's the reason for the discrepancy between two of these answers. Also note that __builtin__ has been renamed to builtins in python3.

Have you looked at the poorly obfuscated API?

Nevermind:

HSSF is the POI Project's pure Java implementation of the Excel '97(-2007) file format. It does not support the new Excel 2007 .xlsx OOXML file format, which is not OLE2 based.

You might consider using a JDBC-ODBC bridge instead.

Using advanced wheres:

CabRes::where('m__Id', 46)
      ->where('t_Id', 2)
      ->where(function($q) {
          $q->where('Cab', 2)
            ->orWhere('Cab', 4);
      })
      ->get();

Or, even better, using whereIn():

CabRes::where('m__Id', 46)
      ->where('t_Id', 2)
      ->whereIn('Cab', $cabIds)
      ->get();

In the term of SEO , 301 and 302 both are good it is depend on situation,

If only one version can be returned (i.e., the other redirects to it), that’s great! This behavior is beneficial because it reduces duplicate content. In the particular case of redirects to trailing slash URLs, our search results will likely show the version of the URL with the 200 response code (most often the trailing slash URL) -- regardless of whether the redirect was a 301 or 302.

Do doubles always have 16 significant figures while floats always have 7 significant figures?

No. Doubles always have 53 significant bits and floats always have 24 significant bits (except for denormals, infinities, and NaN values, but those are subjects for a different question). These are binary formats, and you can only speak clearly about the precision of their representations in terms of binary digits (bits).

This is analogous to the question of how many digits can be stored in a binary integer: an unsigned 32 bit integer can store integers with up to 32 bits, which doesn't precisely map to any number of decimal digits: all integers of up to 9 decimal digits can be stored, but a lot of 10-digit numbers can be stored as well.

Why don't doubles have 14 significant figures?

The encoding of a double uses 64 bits (1 bit for the sign, 11 bits for the exponent, 52 explicit significant bits and one implicit bit), which is double the number of bits used to represent a float (32 bits).

Another alternative:

Use the code from the unicodecsv package ...

https://pypi.python.org/pypi/unicodecsv/

>>> import unicodecsv as csv
>>> from io import BytesIO
>>> f = BytesIO()
>>> w = csv.writer(f, encoding='utf-8')
>>> _ = w.writerow((u'é', u'ñ'))
>>> _ = f.seek(0)
>>> r = csv.reader(f, encoding='utf-8')
>>> next(r) == [u'é', u'ñ']
True

This module is API compatible with the STDLIB csv module.

It was really hard to remember that

    int numberOfColumns = arr.length;
    int numberOfRows = arr[0].length;

Let's understand why this is so and how we can figure this out when we're given an array problem. From the below code we can see that rows = 4 and columns = 3:

    int[][] arr = { {1, 1, 1, 1}, 

                    {2, 2, 2, 2}, 

                    {3, 3, 3, 3} };

arr has multiple arrays in it, and these arrays can be arranged in a vertical manner to get the number of columns. To get the number of rows, we need to access the first array and consider its length. In this case, we access [1, 1, 1, 1] and thus, the number of rows = 4. When you're given a problem where you can't see the array, you can visualize the array as a rectangle with n X m dimensions and conclude that we can get the number of rows by accessing the first array then its length. The other one (arr.length) is for the columns.

I would reach for autopep8 to do this:

$ # see what changes it would make
$ autopep8 path/to/file.py --select=E101,E121 --diff

$ # make these changes
$ autopep8 path/to/file.py --select=E101,E121 --in-place

Note: E101 and E121 are pep8 indentation (I think you can simply pass --select=E1 to fix all indentation related issues - those starting with E1).

You can apply this to your entire project using recursive flag:

$ autopep8 package_dir --recursive --select=E101,E121 --in-place

See also Tool to convert Python code to be PEP8 compliant.

The m000493 method seems to perform some kind of XOR encryption. This means that the same method can be used for both encrypting and decrypting the text. All you have to do is reverse m0001cd:

string p0 = Encoding.UTF8.GetString(Convert.FromBase64String("OBFZDT..."));

string result = m000493(p0, "_p0lizei.");
//    result == "gaia^unplugged^Ta..."

with return m0001cd(builder3.ToString()); changed to return builder3.ToString();.

What is happening is that DataTables is setting the CSS width of the table when it is initialised to a calculated value - that value is in pixels, hence why it won't resize with your dragging. The reason it does this is to stop the table and the columns (the column widths are also set) jumping around in width when you change pagination.

What you can do to stop this behaviour in DataTables is set the autoWidth parameter to false.

$('#example').dataTable( {
  "autoWidth": false
} );

That will stop DataTables adding its calculated widths to the table, leaving your (presumably) width:100% alone and allowing it to resize. Adding a relative width to the columns would also help stop the columns bouncing.

One other option that is built into DataTables is to set the sScrollX option to enable scrolling, as DataTables will set the table to be 100% width of the scrolling container. But you might not want scrolling.

The prefect solution would be if I could get the CSS width of the table (assuming one is applied - i.e. 100%), but without parsing the stylesheets, I don't see a way of doing that (i.e. basically I want $().css('width') to return the value from the stylesheet, not the pixel calculated value).

If you want to change Status Bar Style from the launch screen, You should take this way.

1. Go to Project -> Target,

2. Set Status Bar Style to Light

3. Set View controller-based status bar appearance to NO in Info.plist.

Updated answer, nearly 5 years later:

The code in the original answer no longer works reliably, as images from various sources sometimes return with a different content URI, i.e. content:// rather than file://. A better solution is to simply use context.getContentResolver().openInputStream(intent.getData()), as that will return an InputStream that you can handle as you choose.

For example, BitmapFactory.decodeStream() works perfectly in this situation, as you can also then use the Options and inSampleSize field to downsample large images and avoid memory problems.

However, things like Google Drive return URIs to images which have not actually been downloaded yet. Therefore you need to perform the getContentResolver() code on a background thread.

Original answer:

The other answers explained how to send the intent, but they didn't explain well how to handle the response. Here's some sample code on how to do that:

protected void onActivityResult(int requestCode, int resultCode, 
       Intent imageReturnedIntent) {
    super.onActivityResult(requestCode, resultCode, imageReturnedIntent); 

    switch(requestCode) { 
    case REQ_CODE_PICK_IMAGE:
        if(resultCode == RESULT_OK){  
            Uri selectedImage = imageReturnedIntent.getData();
            String[] filePathColumn = {MediaStore.Images.Media.DATA};

            Cursor cursor = getContentResolver().query(
                               selectedImage, filePathColumn, null, null, null);
            cursor.moveToFirst();

            int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
            String filePath = cursor.getString(columnIndex);
            cursor.close();


            Bitmap yourSelectedImage = BitmapFactory.decodeFile(filePath);
        }
    }
}

After this, you've got the selected image stored in "yourSelectedImage" to do whatever you want with. This code works by getting the location of the image in the ContentResolver database, but that on its own isn't enough. Each image has about 18 columns of information, ranging from its filepath to 'date last modified' to the GPS coordinates of where the photo was taken, though many of the fields aren't actually used.

To save time as you don't actually need the other fields, cursor search is done with a filter. The filter works by specifying the name of the column you want, MediaStore.Images.Media.DATA, which is the path, and then giving that string[] to the cursor query. The cursor query returns with the path, but you don't know which column it's in until you use the columnIndex code. That simply gets the number of the column based on its name, the same one used in the filtering process. Once you've got that, you're finally able to decode the image into a bitmap with the last line of code I gave.

Not sure about older versions, but in 2016.2 removing the .key file(s) didn't work for me.

I'm using my JetBrains account and used the 'Remove License' button found at the bottom of the registration dialog. You can find this under the Help menu or from the startup dialog via Configure -> Manage License....

I believe the part regarding how to span rows has been answered thoroughly (i.e. by nesting rows), but I also ran into the issue of my nested rows not filling their container. While flexbox and negative margins are an option, a much easier solution is to use the predefined h-50 class on the row containing boxes 2, 3, 4, and 5.

Note: I am using Bootstrap-4, I just wanted to share because I ran into the same problem and found this to be a more elegant solution :)

Add to your panel's style code something like this:

<asp:Panel ID="myPanel" runat="Server" CssClass="myPanelCSS" style="overflow-y:auto; overflow-x:hidden"></asp:Panel>

I found this was caused by adding a new scope variable to the login scope

First give the link of logout.php page in that logout button.In that page make the code which is given below:

Here is the code:

<?php
 session_start();
 session_destroy();
?>

When the session has started, the session for the last/current user has been started, so don't need to declare the username. It will be deleted automatically by the session_destroy method.

This is an exeprt from Technet (so not sure why the marked answer says named pipes are faster??):

Named Pipes vs. TCP/IP Sockets

In a fast local area network (LAN) environment, Transmission Control Protocol/Internet Protocol (TCP/IP) Sockets and Named Pipes clients are comparable with regard to performance. However, the performance difference between the TCP/IP Sockets and Named Pipes clients becomes apparent with slower networks, such as across wide area networks (WANs) or dial-up networks. This is because of the different ways the interprocess communication (IPC) mechanisms communicate between peers.

For named pipes, network communications are typically more interactive. A peer does not send data until another peer asks for it using a read command. A network read typically involves a series of peek named pipes messages before it starts to read the data. These can be very costly in a slow network and cause excessive network traffic, which in turn affects other network clients.

It is also important to clarify if you are talking about local pipes or network pipes. If the server application is running locally on the computer that is running an instance of SQL Server, the local Named Pipes protocol is an option. Local named pipes runs in kernel mode and is very fast.

For TCP/IP Sockets, data transmissions are more streamlined and have less overhead. Data transmissions can also take advantage of TCP/IP Sockets performance enhancement mechanisms such as windowing, delayed acknowledgements, and so on. This can be very helpful in a slow network. Depending on the type of applications, such performance differences can be significant.

TCP/IP Sockets also support a backlog queue. This can provide a limited smoothing effect compared to named pipes that could lead to pipe-busy errors when you are trying to connect to SQL Server.

Generally, TCP/IP is preferred in a slow LAN, WAN, or dial-up network, whereas named pipes can be a better choice when network speed is not the issue, as it offers more functionality, ease of use, and configuration options.

You can redirect to a new URL in different ways.

1. You can use $window which will also refresh the page
2. You can "stay inside" the single page app and use $location in which case you can choose between $location.path(YOUR_URL); or $location.url(YOUR_URL);. So the basic difference between the 2 methods is that $location.url() also affects get parameters whilst $location.path() does not.

I would recommend reading the docs on $location and $window so you get a better grasp on the differences between them.

$cmd would just replace the variable with it's value to be executed on command line. eval "$cmd" does variable expansion & command substitution before executing the resulting value on command line

The 2nd method is helpful when you wanna run commands that aren't flexible eg.
for i in {$a..$b}
format loop won't work because it doesn't allow variables.
In this case, a pipe to bash or eval is a workaround.

Tested on Mac OSX 10.6.8, Bash 3.2.48

I faced similar issue and changing defaultConnectionFactory to be SqlConnectionFactory helped me solve it.

I've had similar errors when trying to deploy a Gradle artefact to a Nexus Sonatype repository. You will get a 401 Unauthorized error if you supply the wrong credentials (password etc). You also get an error (and off the top of my head is also a 401) if you try to publish something to a releases repository and that version already exists in the repository. So you might find that by publishing from the command line it works, but then when you do it from a script it fails (because it didn't exist in the repository the first time around). Either publish using a different version number, or delete the old artefact on the server and republish.

The SNAPSHOTS repository (as opposed to the releases repository) allows you to overwrite a similarly numbered version, but your version number should have "-SNAPSHOT" at the end of it.

Maybe :active over :focus with :hover will help! Try

button {
background:lime;
}

button:hover {
background:green;
}

button:focus {
background:gray;
}

button:active {
background:red;
}

Then:

<button onkeydown="alerted_of_key_pressed()" id="button" title="Test button" href="#button">Demo</button>

Then:

<!--JAVASCRIPT-->
<script>
function alerted_of_key_pressed() { alert("You pressed a key when hovering over this button.") }
</script>

 Sorry about that last one. :) I was just showing you a cool function! 
Wait... did I just emphasize a code block? This is cool!!!

There is another way to count the number of characters in each string. Assuming we have a String as String str = "abfdvdvdfv"

We can then count the number of times each character appears by traversing only once as

for (int i = 0; i < str.length(); i++) 
{
    if(null==map.get(str.charAt(i)+""))
    {
        map.put(str.charAt(i)+"", new Integer(1));
    }
    else
    {
       Integer count = map.get(str.charAt(i)+"");
       map.put(str.charAt(i)+"", count+1);
    }
}

We can then check the output by traversing the Map as

for (Map.Entry<String, Integer> entry:map.entrySet()) 
{
    System.out.println(entry.getKey()+" count is : "+entry.getValue())

}

you also should specify def name in the project settings here:

Configuration > Properties/Input/Advanced/Module > Definition File

SOLUTION After all this time, I managed to resolve the problem.

In Module: UserForms(Name).Userform_Initialize

This method works best to dynamically init the current UserForm

Here is something else interesting you can do. Define a function to call just before each ajax call. Also assign a function to call after each ajax call is complete. The first function will set the wait cursor and the second will clear it. They look like the following:

$(document).ajaxComplete(function(event, request, settings) {
    $('*').css('cursor', 'default');
  });

function waitCursor() {
    $('*').css('cursor', 'progress');
  }

In my case I used wrong directory, the right one is lib exec and my path: /usr/local/Cellar/tomcat@7/7.0.96/libexec

In C++ (or in C with C-style casts), you could create the function:

/* Function to control # of decimal places to be output for x */
double showDecimals(const double& x, const int& numDecimals) {
    int y=x;
    double z=x-y;
    double m=pow(10,numDecimals);
    double q=z*m;
    double r=round(q);

    return static_cast<double>(y)+(1.0/m)*r;
}

Then std::cout << showDecimals(37.777779,2); would produce: 37.78.

Obviously you don't really need to create all 5 variables in that function, but I leave them there so you can see the logic. There are probably simpler solutions, but this works well for me--especially since it allows me to adjust the number of digits after the decimal place as I need.

Preferences --> EditorEditor --> Inspections --> Android Lint --> uncheck item Using System app permissio

my answer just for any users that use Visual Studio Flesk Web project :

Just Right Click on "Python Environment" and Click to "Add Environment"

I always use 0. Not for any real thought out reason, just because when I was first learning C++ I read something that recommended using 0 and I've just always done it that way. In theory there could be a confusion issue in readability but in practice I have never once come across such an issue in thousands of man-hours and millions of lines of code. As Stroustrup says, it's really just a personal aesthetic issue until the standard becomes nullptr.

Use this:

String input = "original";
String newStr = "new"; //new string to be added
int n = 10 // no of times we want to add
input = input + new String(new char[n]).replace("\0", newStr);

Disclaimer

Make sure there are no security implications for your use-case before running this.

Answer

I had a similar issue getting Fedora 20, Nginx, Node.js, and Ghost (blog) to work. It turns out my issue was due to SELinux.

This should solve the problem:

setsebool -P httpd_can_network_connect 1

Details

I checked for errors in the SELinux logs:

sudo cat /var/log/audit/audit.log | grep nginx | grep denied

And found that running the following commands fixed my issue:

sudo cat /var/log/audit/audit.log | grep nginx | grep denied | audit2allow -M mynginx
sudo semodule -i mynginx.pp

Option #2 (untested, but probably more secure)

setsebool -P httpd_can_network_relay 1

https://security.stackexchange.com/questions/152358/difference-between-selinux-booleans-httpd-can-network-relay-and-httpd-can-net

References

http://blog.frag-gustav.de/2013/07/21/nginx-selinux-me-mad/
https://wiki.gentoo.org/wiki/SELinux/Tutorials/Where_to_find_SELinux_permission_denial_details
http://wiki.gentoo.org/wiki/SELinux/Tutorials/Managing_network_port_labels
http://www.linuxproblems.org/wiki/Selinux

Make the outer loop a while loop, and "Exit While" in the if statement.

Create a new array with a thousand true values:

var items = Enumerable.Repeat<bool>(true, 1000).ToArray();  // Or ToList(), etc.

Similarly, you can generate integer sequences:

var items = Enumerable.Range(0, 1000).ToArray();  // 0..999

I had the same issue. In my home folder I've got a script named sqlplus.sh that takes care of this for me, containing:

ORACLE_HOME=/usr/lib/oracle/xe/app/oracle/product/10.2.0/server
export ORACLE_HOME
ORACLE_SID=XE
export ORACLE_SID
NLS_LANG=`$ORACLE_HOME/bin/nls_lang.sh`
export NLS_LANG
PATH=$ORACLE_HOME/bin:$PATH
export PATH
sqlplus /nolog

N+1 SELECT problem is really hard to spot, especially in projects with large domain, to the moment when it starts degrading the performance. Even if the problem is fixed i.e. by adding eager loading, a further development may break the solution and/or introduce N+1 SELECT problem again in other places.

I've created open source library jplusone to address those problems in JPA based Spring Boot Java applications. The library provides two major features:

1. Generates reports correlating SQL statements with executions of JPA operations which triggered them and places in source code of your application which were involved in it

2020-10-22 18:41:43.236 DEBUG 14913 --- [           main] c.a.j.core.report.ReportGenerator        :
    ROOT
        com.adgadev.jplusone.test.domain.bookshop.BookshopControllerTest.shouldGetBookDetailsLazily(BookshopControllerTest.java:65)
        com.adgadev.jplusone.test.domain.bookshop.BookshopController.getSampleBookUsingLazyLoading(BookshopController.java:31)
        com.adgadev.jplusone.test.domain.bookshop.BookshopService.getSampleBookDetailsUsingLazyLoading [PROXY]
            SESSION BOUNDARY
                OPERATION [IMPLICIT]
                    com.adgadev.jplusone.test.domain.bookshop.BookshopService.getSampleBookDetailsUsingLazyLoading(BookshopService.java:35)
                    com.adgadev.jplusone.test.domain.bookshop.Author.getName [PROXY]
                    com.adgadev.jplusone.test.domain.bookshop.Author [FETCHING ENTITY]
                        STATEMENT [READ]
                            select [...] from
                                author author0_
                                left outer join genre genre1_ on author0_.genre_id=genre1_.id
                            where
                                author0_.id=1
                OPERATION [IMPLICIT]
                    com.adgadev.jplusone.test.domain.bookshop.BookshopService.getSampleBookDetailsUsingLazyLoading(BookshopService.java:36)
                    com.adgadev.jplusone.test.domain.bookshop.Author.countWrittenBooks(Author.java:53)
                    com.adgadev.jplusone.test.domain.bookshop.Author.books [FETCHING COLLECTION]
                        STATEMENT [READ]
                            select [...] from
                                book books0_
                            where
                                books0_.author_id=1

2. Provides API which allows to write tests checking how effectively your application is using JPA (i.e. assert amount of lazy loading operations )

@SpringBootTest
class LazyLoadingTest {

    @Autowired
    private JPlusOneAssertionContext assertionContext;

    @Autowired
    private SampleService sampleService;

    @Test
    public void shouldBusinessCheckOperationAgainstJPlusOneAssertionRule() {
        JPlusOneAssertionRule rule = JPlusOneAssertionRule
                .within().lastSession()
                .shouldBe().noImplicitOperations().exceptAnyOf(exclusions -> exclusions
                        .loadingEntity(Author.class).times(atMost(2))
                        .loadingCollection(Author.class, "books")
                );

        // trigger business operation which you wish to be asserted against the rule,
        // i.e. calling a service or sending request to your API controller
        sampleService.executeBusinessOperation();

        rule.check(assertionContext);
    }
}

This function helps you to calculate exact years and months between two given dates, $doj1 and $doj. It returns example 4.3 means 4 years and 3 month.

<?php
    function cal_exp($doj1)
    {
        $doj1=strtotime($doj1);
        $doj=date("m/d/Y",$doj1); //till date or any given date

        $now=date("m/d/Y");
        //$b=strtotime($b1);
        //echo $c=$b1-$a2;
        //echo date("Y-m-d H:i:s",$c);
        $year=date("Y");
        //$chk_leap=is_leapyear($year);

        //$year_diff=365.25;

        $x=explode("/",$doj);
        $y1=explode("/",$now);

        $yy=$x[2];
        $mm=$x[0];
        $dd=$x[1];

        $yy1=$y1[2];
        $mm1=$y1[0];
        $dd1=$y1[1];
        $mn=0;
        $mn1=0;
        $ye=0;
        if($mm1>$mm)
        {
            $mn=$mm1-$mm;
            if($dd1<$dd)
            {
                $mn=$mn-1;
            }
            $ye=$yy1-$yy;
        }
        else if($mm1<$mm)
        {
            $mn=12-$mm;
            //$mn=$mn;

            if($mm!=1)
            {
                $mn1=$mm1-1;
            }

            $mn+=$mn1;
            if($dd1>$dd)
            {
                $mn+=1;
            }

            $yy=$yy+1;
            $ye=$yy1-$yy;
        }
        else
        {
            $ye=$yy1-$yy;
            $ye=$ye-1;

            $mn=12-1;

            if($dd1>$dd)
            {
                $ye+=1;
                $mn=0;
            }
        }

        $to=$ye." year and ".$mn." months";
        return $ye.".".$mn;

        /*return daysDiff($x[2],$x[0],$x[1]);
         $days=dateDiff("/",$now,$doj)/$year_diff;
        $days_exp=explode(".",$days);
        return $years_exp=$days; //number of years exp*/
    }
?>

From JQuery Documentation

The jqXHR objects returned by $.ajax() as of jQuery 1.5 implement the Promise interface, giving them all the properties, methods, and behavior of a Promise (see Deferred object for more information). These methods take one or more function arguments that are called when the $.ajax() request terminates. This allows you to assign multiple callbacks on a single request, and even to assign callbacks after the request may have completed. (If the request is already complete, the callback is fired immediately.) Available Promise methods of the jqXHR object include:

jqXHR.done(function( data, textStatus, jqXHR ) {});

An alternative construct to the success callback option, refer to deferred.done() for implementation details.

jqXHR.fail(function( jqXHR, textStatus, errorThrown ) {});

An alternative construct to the error callback option, the .fail() method replaces the deprecated .error() method. Refer to deferred.fail() for implementation details.

jqXHR.always(function( data|jqXHR, textStatus, jqXHR|errorThrown ) { }); 

(added in jQuery 1.6) An alternative construct to the complete callback option, the .always() method replaces the deprecated .complete() method.

In response to a successful request, the function's arguments are the same as those of .done(): data, textStatus, and the jqXHR object. For failed requests the arguments are the same as those of .fail(): the jqXHR object, textStatus, and errorThrown. Refer to deferred.always() for implementation details.

jqXHR.then(function( data, textStatus, jqXHR ) {}, function( jqXHR, textStatus, errorThrown ) {});

Incorporates the functionality of the .done() and .fail() methods, allowing (as of jQuery 1.8) the underlying Promise to be manipulated. Refer to deferred.then() for implementation details.

Deprecation Notice: The jqXHR.success(), jqXHR.error(), and jqXHR.complete() callbacks are removed as of jQuery 3.0. You can use jqXHR.done(), jqXHR.fail(), and jqXHR.always() instead.

This will work to both load and save a file into TXT from a HTML page with a save as choice

<html>
<body>

<table>
    <tr><td>Text to Save:</td></tr>
    <tr>
        <td colspan="3">
            <textarea id="inputTextToSave" cols="80" rows="25"></textarea>
        </td>
    </tr>
    <tr>
        <td>Filename to Save As:</td>
        <td><input id="inputFileNameToSaveAs"></input></td>
        <td><button onclick="saveTextAsFile()">Save Text to File</button></td>
    </tr>
    <tr>
        <td>Select a File to Load:</td>
        <td><input type="file" id="fileToLoad"></td>
        <td><button onclick="loadFileAsText()">Load Selected File</button><td>
    </tr>
</table>

<script type="text/javascript">

function saveTextAsFile()
{
    var textToSave = document.getElementById("inputTextToSave").value;
    var textToSaveAsBlob = new Blob([textToSave], {type:"text/plain"});
    var textToSaveAsURL = window.URL.createObjectURL(textToSaveAsBlob);
    var fileNameToSaveAs = document.getElementById("inputFileNameToSaveAs").value;

    var downloadLink = document.createElement("a");
    downloadLink.download = fileNameToSaveAs;
    downloadLink.innerHTML = "Download File";
    downloadLink.href = textToSaveAsURL;
    downloadLink.onclick = destroyClickedElement;
    downloadLink.style.display = "none";
    document.body.appendChild(downloadLink);

    downloadLink.click();
}

function destroyClickedElement(event)
{
    document.body.removeChild(event.target);
}

function loadFileAsText()
{
    var fileToLoad = document.getElementById("fileToLoad").files[0];

    var fileReader = new FileReader();
    fileReader.onload = function(fileLoadedEvent) 
    {
        var textFromFileLoaded = fileLoadedEvent.target.result;
        document.getElementById("inputTextToSave").value = textFromFileLoaded;
    };
    fileReader.readAsText(fileToLoad, "UTF-8");
}

</script>

</body>
</html>

pixels = np.array(pixels) in this line you reassign pixels. So, it may not a list anyhow. Though pixels is not a list it has no attributes append. Does it make sense?

Per JamieL's answer to another post:

Since Express.js 3x the response object has a json() method which sets all the headers correctly for you.

Example:

res.json({"foo": "bar"});

While not as pretty as querySelectorAll (which has a litany of issues), here's a very flexible function that recurses the DOM and should work in most browsers (old and new). As long as the browser supports your condition (ie: data attributes), you should be able to retrieve the element.

To the curious: Don't bother testing this vs. QSA on jsPerf. Browsers like Opera 11 will cache the query and skew the results.

Code:

function recurseDOM(start, whitelist)
{
    /*
    *    @start:        Node    -    Specifies point of entry for recursion
    *    @whitelist:    Object  -    Specifies permitted nodeTypes to collect
    */

    var i = 0, 
    startIsNode = !!start && !!start.nodeType, 
    startHasChildNodes = !!start.childNodes && !!start.childNodes.length,
    nodes, node, nodeHasChildNodes;
    if(startIsNode && startHasChildNodes)
    {       
        nodes = start.childNodes;
        for(i;i<nodes.length;i++)
        {
            node = nodes[i];
            nodeHasChildNodes = !!node.childNodes && !!node.childNodes.length;
            if(!whitelist || whitelist[node.nodeType])
            {
                //condition here
                if(!!node.dataset && !!node.dataset.foo)
                {
                    //handle results here
                }
                if(nodeHasChildNodes)
                {
                    recurseDOM(node, whitelist);
                }
            }
            node = null;
            nodeHasChildNodes = null;
        }
    }
}

You can then initiate it with the following:

recurseDOM(document.body, {"1": 1}); for speed, or just recurseDOM(document.body);

Example with your specification: http://jsbin.com/unajot/1/edit

Example with differing specification: http://jsbin.com/unajot/2/edit

Assuming the type is CV_8UC3 you would do this:

for(int i = 0; i < foo.rows; i++)
{
    for(int j = 0; j < foo.cols; j++)
    {
        Vec3b bgrPixel = foo.at<Vec3b>(i, j);

        // do something with BGR values...
    }
}

Here is the documentation for Vec3b. Hope that helps! Also, don't forget OpenCV stores things internally as BGR not RGB.

EDIT :
For performance reasons, you may want to use direct access to the data buffer in order to process the pixel values:

Here is how you might go about this:

uint8_t* pixelPtr = (uint8_t*)foo.data;
int cn = foo.channels();
Scalar_<uint8_t> bgrPixel;

for(int i = 0; i < foo.rows; i++)
{
    for(int j = 0; j < foo.cols; j++)
    {
        bgrPixel.val[0] = pixelPtr[i*foo.cols*cn + j*cn + 0]; // B
        bgrPixel.val[1] = pixelPtr[i*foo.cols*cn + j*cn + 1]; // G
        bgrPixel.val[2] = pixelPtr[i*foo.cols*cn + j*cn + 2]; // R

        // do something with BGR values...
    }
}

Or alternatively:

int cn = foo.channels();
Scalar_<uint8_t> bgrPixel;

for(int i = 0; i < foo.rows; i++)
{
    uint8_t* rowPtr = foo.row(i);
    for(int j = 0; j < foo.cols; j++)
    {
        bgrPixel.val[0] = rowPtr[j*cn + 0]; // B
        bgrPixel.val[1] = rowPtr[j*cn + 1]; // G
        bgrPixel.val[2] = rowPtr[j*cn + 2]; // R

        // do something with BGR values...
    }
}

It is .shape:

ndarray.shape
Tuple of array dimensions.

Thus:

>>> a.shape
(2, 2)

If your folder already have package.json

Then,

Copy the path of package.json

Open terminal

Write:

cd your_path_to_package.json

Press ENTER

Then Write:

npm install

This worked for me

The following is my favorite var_dump/print_r equivalent in Javascript to PHPs var_dump.

function dump(arr,level) {
    var dumped_text = "";
    if(!level) level = 0;
    
    //The padding given at the beginning of the line.
    var level_padding = "";
    for(var j=0;j<level+1;j++) level_padding += "    ";
    
    if(typeof(arr) == 'object') { //Array/Hashes/Objects 
        for(var item in arr) {
        var value = arr[item];
            if(typeof(value) == 'object') { //If it is an array,
                dumped_text += level_padding + "'" + item + "' ...\n";
                dumped_text += dump(value,level+1);
            } else {
                dumped_text += level_padding + "'" + item + "' => \"" + value + "\"\n";
            }
        }
    } else { //Stings/Chars/Numbers etc.
        dumped_text = "===>"+arr+"<===("+typeof(arr)+")";
    }
    return dumped_text;
}

My Solution is to define an RStudio snippet as follows:

snippet pp
    "`r gsub("\\\\", "\\\\\\\\\\\\\\\\", readClipboard())`"

This snippet converts backslashes \ into double backslashes \\. The following version will work if you prefer to convert backslahes to forward slashes /.

snippet pp
    "`r gsub("\\\\", "/", readClipboard())`"

Once your preferred snippet is defined, paste a path from the clipboard by typing p-p-TAB-ENTER (that is pp and then the tab key and then enter) and the path will be magically inserted with R friendly delimiters.

Browsers can block access to window.top due to same origin policy. IE bugs also take place. Here's the working code:

function inIframe () {
    try {
        return window.self !== window.top;
    } catch (e) {
        return true;
    }
}

top and self are both window objects (along with parent), so you're seeing if your window is the top window.

Very simple to fix, you just need to turn the parameter to writerow into a list.

for item in RESULTS:
     wr.writerow([item,])

toEqual() compares values if Primitive or contents if Objects. toBe() compares references.

Following code / suite should be self explanatory :

describe('Understanding toBe vs toEqual', () => {
  let obj1, obj2, obj3;

  beforeEach(() => {
    obj1 = {
      a: 1,
      b: 'some string',
      c: true
    };

    obj2 = {
      a: 1,
      b: 'some string',
      c: true
    };

    obj3 = obj1;
  });

  afterEach(() => {
    obj1 = null;
    obj2 = null;
    obj3 = null;
  });

  it('Obj1 === Obj2', () => {
    expect(obj1).toEqual(obj2);
  });

  it('Obj1 === Obj3', () => {
    expect(obj1).toEqual(obj3);
  });

  it('Obj1 !=> Obj2', () => {
    expect(obj1).not.toBe(obj2);
  });

  it('Obj1 ==> Obj3', () => {
    expect(obj1).toBe(obj3);
  });
});

WORKAROUND:

The possible workaround is modify your project's platform from 'Any CPU' to 'X86' (in Project's Properties, Build/Platform's Target)

ROOTCAUSE

The VSS Interop is a managed assembly using 32-bit Framework and the dll contains a 32-bit COM object. If you run this COM dll in 64 bit environment, you will get the error message.

for /f "delims=" %a in (downing.txt) do echo %a & pause>nul

Prints 1st line, then waits for user to press a key to print next line. After printing required lines, press Ctrl+C to stop.

@Ross Presser: This method prints lines only, not prepend line numbers.

You templatize your class based on an 'unsigned int'.

Example:

template <unsigned int N>
class MyArray
{
    public:
    private:
        double    data[N]; // Use N as the size of the array
};

int main()
{
    MyArray<2>     a1;
    MyArray<2>     a2;

    MyArray<4>     b1;

    a1 = a2;  // OK The arrays are the same size.
    a1 = b1;  // FAIL because the size of the array is part of the
              //      template and thus the type, a1 and b1 are different types.
              //      Thus this is a COMPILE time failure.
 }

Code counts the unique/distinct combination of Tag & Entry ID when [Entry Id]>0

select count(distinct(concat(tag,entryId)))
from customers
where id>0

In the output it will display the count of unique values Hope this helps

SELECT * FROM Employees
WHERE rownum <= 3
ORDER BY Salary ;

In High Sierra, the cacerts is located at : /Library/Java/JavaVirtualMachines/jdk1.8.0_25.jdk/Contents/Home/jre/lib/security/cacerts

Your function is failing because the groupby dataframe you end up with has a hierarchical index and two columns (Letter and N) so when you do .hist() it's trying to make a histogram of both columns hence the str error.

This is the default behavior of pandas plotting functions (one plot per column) so if you reshape your data frame so that each letter is a column you will get exactly what you want.

df.reset_index().pivot('index','Letter','N').hist()

The reset_index() is just to shove the current index into a column called index. Then pivot will take your data frame, collect all of the values N for each Letter and make them a column. The resulting data frame as 400 rows (fills missing values with NaN) and three columns (A, B, C). hist() will then produce one histogram per column and you get format the plots as needed.

@Jacob already showed you how to use the Gaussian filter in Matlab, so I won't repeat that.

I would choose filter size to be about 3*sigma in each direction (round to odd integer). Thus, the filter decays to nearly zero at the edges, and you won't get discontinuities in the filtered image.

The choice of sigma depends a lot on what you want to do. Gaussian smoothing is low-pass filtering, which means that it suppresses high-frequency detail (noise, but also edges), while preserving the low-frequency parts of the image (i.e. those that don't vary so much). In other words, the filter blurs everything that is smaller than the filter.

If you're looking to suppress noise in an image in order to enhance the detection of small features, for example, I suggest to choose a sigma that makes the Gaussian just slightly smaller than the feature.

As shown in the latest edit, the password is valid until 1970, which means it's currently invalid. This explains the error message which is the same as if the password was incorrect.

Reset the validity with:

ALTER USER postgres VALID UNTIL 'infinity';

In a recent question, another user had the same problem with user accounts and PG-9.2:

PostgreSQL - Password authentication fail after adding group roles

So apparently there is a way to unintentionally set a bogus password validity to the Unix epoch (1st Jan, 1970, the minimum possible value for the abstime type). Possibly, there's a bug in PG itself or in some client tool that would create this situation.

EDIT: it turns out to be a pgadmin bug. See https://dba.stackexchange.com/questions/36137/

I'm not sure that is the problem but what worked for me is calling mVideoView.start(); inside the mVideoView.setOnPreparedListener event callback.

For example:

Uri uriVideo = Uri.parse(<your link here>);

MediaController mediaController = new MediaController(mContext);
mediaController.setAnchorView(mVideoView);
mVideoView.setMediaController(mediaController);
mVideoView.setVideoURI(uriVideo);
mVideoView.requestFocus();

mVideoView.setOnPreparedListener(new MediaPlayer.OnPreparedListener()
{
     @Override
     public void onPrepared(MediaPlayer mp)
     {
          mVideoViewPeekItem.start();
     }
});

<%= Html.Partial("PartialName", Model) %>

Actually, you should use either JVM managed Objects or Spring-managed Object to invoke methods. from your above code in your controller class, you are creating a new object to call your service class which has an auto-wired object.

MileageFeeCalculator calc = new MileageFeeCalculator();

so it won't work that way.

The solution makes this MileageFeeCalculator as an auto-wired object in the Controller itself.

Change your Controller class like below.

@Controller
public class MileageFeeController {

    @Autowired
    MileageFeeCalculator calc;  

    @RequestMapping("/mileage/{miles}")
    @ResponseBody
    public float mileageFee(@PathVariable int miles) {
        return calc.mileageCharge(miles);
    }
}

Generic parameters can only bind to reference types, not primitive types, so you need to use the corresponding wrapper types. Try HashMap<Character, Integer> instead.

However, I'm having trouble figuring out why HashMap fails to be able to deal with primitive data types.

This is due to type erasure. Java didn't have generics from the beginning so a HashMap<Character, Integer> is really a HashMap<Object, Object>. The compiler does a bunch of additional checks and implicit casts to make sure you don't put the wrong type of value in or get the wrong type out, but at runtime there is only one HashMap class and it stores objects.

Other languages "specialize" types so in C++, a vector<bool> is very different from a vector<my_class> internally and they share no common vector<?> super-type. Java defines things though so that a List<T> is a List regardless of what T is for backwards compatibility with pre-generic code. This backwards-compatibility requirement that there has to be a single implementation class for all parameterizations of a generic type prevents the kind of template specialization which would allow generic parameters to bind to primitives.

Here is working example:

in head

<script type="text/javascript" src="jspdf.debug.js"></script>

script:

<script type="text/javascript">
        function demoFromHTML() {
            var pdf = new jsPDF('p', 'pt', 'letter');
            // source can be HTML-formatted string, or a reference
            // to an actual DOM element from which the text will be scraped.
            source = $('#customers')[0];

            // we support special element handlers. Register them with jQuery-style 
            // ID selector for either ID or node name. ("#iAmID", "div", "span" etc.)
            // There is no support for any other type of selectors 
            // (class, of compound) at this time.
            specialElementHandlers = {
                // element with id of "bypass" - jQuery style selector
                '#bypassme': function(element, renderer) {
                    // true = "handled elsewhere, bypass text extraction"
                    return true
                }
            };
            margins = {
                top: 80,
                bottom: 60,
                left: 40,
                width: 522
            };
            // all coords and widths are in jsPDF instance's declared units
            // 'inches' in this case
            pdf.fromHTML(
                    source, // HTML string or DOM elem ref.
                    margins.left, // x coord
                    margins.top, {// y coord
                        'width': margins.width, // max width of content on PDF
                        'elementHandlers': specialElementHandlers
                    },
            function(dispose) {
                // dispose: object with X, Y of the last line add to the PDF 
                //          this allow the insertion of new lines after html
                pdf.save('Test.pdf');
            }
            , margins);
        }
    </script>

and table:

<div id="customers">
        <table id="tab_customers" class="table table-striped" >
            <colgroup>
                <col width="20%">
                <col width="20%">
                <col width="20%">
                <col width="20%">
            </colgroup>
            <thead>         
                <tr class='warning'>
                    <th>Country</th>
                    <th>Population</th>
                    <th>Date</th>
                    <th>Age</th>
                </tr>
            </thead>
            <tbody>
                <tr>
                    <td>Chinna</td>
                    <td>1,363,480,000</td>
                    <td>March 24, 2014</td>
                    <td>19.1</td>
                </tr>
                <tr>
                    <td>India</td>
                    <td>1,241,900,000</td>
                    <td>March 24, 2014</td>
                    <td>17.4</td>
                </tr>
                <tr>
                    <td>United States</td>
                    <td>317,746,000</td>
                    <td>March 24, 2014</td>
                    <td>4.44</td>
                </tr>
                <tr>
                    <td>Indonesia</td>
                    <td>249,866,000</td>
                    <td>July 1, 2013</td>
                    <td>3.49</td>
                </tr>
                <tr>
                    <td>Brazil</td>
                    <td>201,032,714</td>
                    <td>July 1, 2013</td>
                    <td>2.81</td>
                </tr>
            </tbody>
        </table> 
    </div>

and button to run:

<button onclick="javascript:demoFromHTML()">PDF</button>

and working example online:

tabel to pdf jspdf

or try this: HTML Table Export

So left div style depends on the presence of right div. I can't think of a CSS selector allowing that kind of behavior yet.

Thus it seems to me that you'll need to programmatically add a class server side (or in JS) on parent div or left div to do that.

<div id="parent twocols">
  <div class="left"></div>
  <div class="right"></div>
</div>

or

<div id="parent">
  <div class="left"></div>
</div>

So right style is always :

.right {
    float: right;
    width: 200px; /* or whatever value you need */
    /* margin and padding at your discretion */
}

and left style is :

.parent.twocols .left {
    margin-right: 200px; /* according to right div width + margin + padding*/
}

Use mapply

> df <- data.frame(x=c(1,2), y=c(3,4), z=c(5,6))
> df
  x y z
1 1 3 5
2 2 4 6
> mapply(function(x,y) x+y, df$x, df$z)
[1] 6 8

> cbind(df,f = mapply(function(x,y) x+y, df$x, df$z) )
  x y z f
1 1 3 5 6
2 2 4 6 8

Symfony 2.1 has a JsonResponse class.

return new JsonResponse(array('name' => $name));

The passed in array will be JSON encoded the status code will default to 200 and the content type will be set to application/json.

There is also a handy setCallback function for JSONP.

Note that -regex depends on whole path.

 -regex pattern
              File name matches regular expression pattern.  
              This is a match on the whole path, not a search.

You don't actually have to use -regex for what you are doing.

find . -iname "*[0-9]"

Copy the file into your src folder. Go to the Project Explorer in Eclipse, Right-click on your project, and click on "Refresh". The file should appear on the Project Explorer pane as well.

Python lacks the tail recursion optimizations common in functional languages like lisp. In Python, recursion is limited to 999 calls (see sys.getrecursionlimit).

If 999 depth is more than you are expecting, check if the implementation lacks a condition that stops recursion, or if this test may be wrong for some cases.

I dare to say that in Python, pure recursive algorithm implementations are not correct/safe. A fib() implementation limited to 999 is not really correct. It is always possible to convert recursive into iterative, and doing so is trivial.

It is not reached often because in many recursive algorithms the depth tend to be logarithmic. If it is not the case with your algorithm and you expect recursion deeper than 999 calls you have two options:

1) You can change the recursion limit with sys.setrecursionlimit(n) until the maximum allowed for your platform:

sys.setrecursionlimit(limit):

Set the maximum depth of the Python interpreter stack to limit. This limit prevents infinite recursion from causing an overflow of the C stack and crashing Python.

The highest possible limit is platform-dependent. A user may need to set the limit higher when she has a program that requires deep recursion and a platform that supports a higher limit. This should be done with care, because a too-high limit can lead to a crash.

2) You can try to convert the algorithm from recursive to iterative. If recursion depth is bigger than allowed by your platform, it is the only way to fix the problem. There are step by step instructions on the Internet and it should be a straightforward operation for someone with some CS education. If you are having trouble with that, post a new question so we can help.

Just an update since I was trying all this stuff today in response to a customer issue

• With the exception of Safari configured for Japanese, all browsers our customer tested worked best with filename=text.pdf - where text is a customer value serialized by ASP.Net/IIS in utf-8 without url encoding. For some reason, Safari configured for English would accept and properly save a file with utf-8 Japanese name but that same browser configured for Japanese would save the file with the utf-8 chars uninterpreted. All other browsers tested seemed to work best/fine (regardless of language configuration) with the filename utf-8 encoded without url encoding.
• I could not find a single browser implementing Rfc5987/8187 at all. I tested with the latest Chrome, Firefox builds plus IE 11 and Edge. I tried setting the header with just filename*=utf-8''texturlencoded.pdf, setting it with both filename=text.pdf; filename*=utf-8''texturlencoded.pdf. Not one feature of Rfc5987/8187 appeared to be getting processed correctly in any of the above.

You can use the CSS property "outline" and value of "none" on the anchor element.

a {
outline: none;
}

Hope that helps.

Well when you are writing a c program and want the output log to stay instead of flickering away you only need to import the stdlib.h header file and type "system("PAUSE");" at the place you want the output screen to halt.Look at the example here.The following simple c program prints the product of 5 and 6 i.e 30 to the output window and halts the output window.

#include <stdio.h>
#include <stdlib.h>
int main()
 {
      int a,b,c;
      a=5;b=6;
      c=a*b;
      printf("%d",c);
      system("PAUSE");
      return 0;
 }

Hope this helped.

On Mac OS you have to press: CMD+ALT+I

This code work correctly only when u put into button click because at that time user put values into editable text and then when user clicks button it fetch the data and convert into string

EditText dob=(EditText)findviewbyid(R.id.edit_id);
String  str=dob.getText().toString();

tl;dr

Call the is_path_exists_or_creatable() function defined below.

Strictly Python 3. That's just how we roll.

A Tale of Two Questions

The question of "How do I test pathname validity and, for valid pathnames, the existence or writability of those paths?" is clearly two separate questions. Both are interesting, and neither have received a genuinely satisfactory answer here... or, well, anywhere that I could grep.

vikki's answer probably hews the closest, but has the remarkable disadvantages of:

• Needlessly opening (...and then failing to reliably close) file handles.
• Needlessly writing (...and then failing to reliable close or delete) 0-byte files.
• Ignoring OS-specific errors differentiating between non-ignorable invalid pathnames and ignorable filesystem issues. Unsurprisingly, this is critical under Windows. (See below.)
• Ignoring race conditions resulting from external processes concurrently (re)moving parent directories of the pathname to be tested. (See below.)
• Ignoring connection timeouts resulting from this pathname residing on stale, slow, or otherwise temporarily inaccessible filesystems. This could expose public-facing services to potential DoS-driven attacks. (See below.)

We're gonna fix all that.

Question #0: What's Pathname Validity Again?

Before hurling our fragile meat suits into the python-riddled moshpits of pain, we should probably define what we mean by "pathname validity." What defines validity, exactly?

By "pathname validity," we mean the syntactic correctness of a pathname with respect to the root filesystem of the current system – regardless of whether that path or parent directories thereof physically exist. A pathname is syntactically correct under this definition if it complies with all syntactic requirements of the root filesystem.

By "root filesystem," we mean:

• On POSIX-compatible systems, the filesystem mounted to the root directory (/).
• On Windows, the filesystem mounted to %HOMEDRIVE%, the colon-suffixed drive letter containing the current Windows installation (typically but not necessarily C:).

The meaning of "syntactic correctness," in turn, depends on the type of root filesystem. For ext4 (and most but not all POSIX-compatible) filesystems, a pathname is syntactically correct if and only if that pathname:

• Contains no null bytes (i.e., \x00 in Python). This is a hard requirement for all POSIX-compatible filesystems.
• Contains no path components longer than 255 bytes (e.g., 'a'*256 in Python). A path component is a longest substring of a pathname containing no / character (e.g., bergtatt, ind, i, and fjeldkamrene in the pathname /bergtatt/ind/i/fjeldkamrene).

Syntactic correctness. Root filesystem. That's it.

Question #1: How Now Shall We Do Pathname Validity?

Validating pathnames in Python is surprisingly non-intuitive. I'm in firm agreement with Fake Name here: the official os.path package should provide an out-of-the-box solution for this. For unknown (and probably uncompelling) reasons, it doesn't. Fortunately, unrolling your own ad-hoc solution isn't that gut-wrenching...

O.K., it actually is. It's hairy; it's nasty; it probably chortles as it burbles and giggles as it glows. But what you gonna do? Nuthin'.

We'll soon descend into the radioactive abyss of low-level code. But first, let's talk high-level shop. The standard os.stat() and os.lstat() functions raise the following exceptions when passed invalid pathnames:

• For pathnames residing in non-existing directories, instances of FileNotFoundError.
• For pathnames residing in existing directories:
  • Under Windows, instances of WindowsError whose winerror attribute is 123 (i.e., ERROR_INVALID_NAME).
  • Under all other OSes:
  • For pathnames containing null bytes (i.e., '\x00'), instances of TypeError.
  • For pathnames containing path components longer than 255 bytes, instances of OSError whose errcode attribute is:
    • Under SunOS and the *BSD family of OSes, errno.ERANGE. (This appears to be an OS-level bug, otherwise referred to as "selective interpretation" of the POSIX standard.)
    • Under all other OSes, errno.ENAMETOOLONG.

Crucially, this implies that only pathnames residing in existing directories are validatable. The os.stat() and os.lstat() functions raise generic FileNotFoundError exceptions when passed pathnames residing in non-existing directories, regardless of whether those pathnames are invalid or not. Directory existence takes precedence over pathname invalidity.

Does this mean that pathnames residing in non-existing directories are not validatable? Yes – unless we modify those pathnames to reside in existing directories. Is that even safely feasible, however? Shouldn't modifying a pathname prevent us from validating the original pathname?

To answer this question, recall from above that syntactically correct pathnames on the ext4 filesystem contain no path components (A) containing null bytes or (B) over 255 bytes in length. Hence, an ext4 pathname is valid if and only if all path components in that pathname are valid. This is true of most real-world filesystems of interest.

Does that pedantic insight actually help us? Yes. It reduces the larger problem of validating the full pathname in one fell swoop to the smaller problem of only validating all path components in that pathname. Any arbitrary pathname is validatable (regardless of whether that pathname resides in an existing directory or not) in a cross-platform manner by following the following algorithm:

1. Split that pathname into path components (e.g., the pathname /troldskog/faren/vild into the list ['', 'troldskog', 'faren', 'vild']).
2. For each such component:
   1. Join the pathname of a directory guaranteed to exist with that component into a new temporary pathname (e.g., /troldskog) .
   2. Pass that pathname to os.stat() or os.lstat(). If that pathname and hence that component is invalid, this call is guaranteed to raise an exception exposing the type of invalidity rather than a generic FileNotFoundError exception. Why? Because that pathname resides in an existing directory. (Circular logic is circular.)

Is there a directory guaranteed to exist? Yes, but typically only one: the topmost directory of the root filesystem (as defined above).

Passing pathnames residing in any other directory (and hence not guaranteed to exist) to os.stat() or os.lstat() invites race conditions, even if that directory was previously tested to exist. Why? Because external processes cannot be prevented from concurrently removing that directory after that test has been performed but before that pathname is passed to os.stat() or os.lstat(). Unleash the dogs of mind-fellating insanity!

There exists a substantial side benefit to the above approach as well: security. (Isn't that nice?) Specifically:

Front-facing applications validating arbitrary pathnames from untrusted sources by simply passing such pathnames to os.stat() or os.lstat() are susceptible to Denial of Service (DoS) attacks and other black-hat shenanigans. Malicious users may attempt to repeatedly validate pathnames residing on filesystems known to be stale or otherwise slow (e.g., NFS Samba shares); in that case, blindly statting incoming pathnames is liable to either eventually fail with connection timeouts or consume more time and resources than your feeble capacity to withstand unemployment.

The above approach obviates this by only validating the path components of a pathname against the root directory of the root filesystem. (If even that's stale, slow, or inaccessible, you've got larger problems than pathname validation.)

Lost? Great. Let's begin. (Python 3 assumed. See "What Is Fragile Hope for 300, leycec?")

import errno, os

# Sadly, Python fails to provide the following magic number for us.
ERROR_INVALID_NAME = 123
'''
Windows-specific error code indicating an invalid pathname.

See Also
----------
https://docs.microsoft.com/en-us/windows/win32/debug/system-error-codes--0-499-
    Official listing of all such codes.
'''

def is_pathname_valid(pathname: str) -> bool:
    '''
    `True` if the passed pathname is a valid pathname for the current OS;
    `False` otherwise.
    '''
    # If this pathname is either not a string or is but is empty, this pathname
    # is invalid.
    try:
        if not isinstance(pathname, str) or not pathname:
            return False

        # Strip this pathname's Windows-specific drive specifier (e.g., `C:\`)
        # if any. Since Windows prohibits path components from containing `:`
        # characters, failing to strip this `:`-suffixed prefix would
        # erroneously invalidate all valid absolute Windows pathnames.
        _, pathname = os.path.splitdrive(pathname)

        # Directory guaranteed to exist. If the current OS is Windows, this is
        # the drive to which Windows was installed (e.g., the "%HOMEDRIVE%"
        # environment variable); else, the typical root directory.
        root_dirname = os.environ.get('HOMEDRIVE', 'C:') \
            if sys.platform == 'win32' else os.path.sep
        assert os.path.isdir(root_dirname)   # ...Murphy and her ironclad Law

        # Append a path separator to this directory if needed.
        root_dirname = root_dirname.rstrip(os.path.sep) + os.path.sep

        # Test whether each path component split from this pathname is valid or
        # not, ignoring non-existent and non-readable path components.
        for pathname_part in pathname.split(os.path.sep):
            try:
                os.lstat(root_dirname + pathname_part)
            # If an OS-specific exception is raised, its error code
            # indicates whether this pathname is valid or not. Unless this
            # is the case, this exception implies an ignorable kernel or
            # filesystem complaint (e.g., path not found or inaccessible).
            #
            # Only the following exceptions indicate invalid pathnames:
            #
            # * Instances of the Windows-specific "WindowsError" class
            #   defining the "winerror" attribute whose value is
            #   "ERROR_INVALID_NAME". Under Windows, "winerror" is more
            #   fine-grained and hence useful than the generic "errno"
            #   attribute. When a too-long pathname is passed, for example,
            #   "errno" is "ENOENT" (i.e., no such file or directory) rather
            #   than "ENAMETOOLONG" (i.e., file name too long).
            # * Instances of the cross-platform "OSError" class defining the
            #   generic "errno" attribute whose value is either:
            #   * Under most POSIX-compatible OSes, "ENAMETOOLONG".
            #   * Under some edge-case OSes (e.g., SunOS, *BSD), "ERANGE".
            except OSError as exc:
                if hasattr(exc, 'winerror'):
                    if exc.winerror == ERROR_INVALID_NAME:
                        return False
                elif exc.errno in {errno.ENAMETOOLONG, errno.ERANGE}:
                    return False
    # If a "TypeError" exception was raised, it almost certainly has the
    # error message "embedded NUL character" indicating an invalid pathname.
    except TypeError as exc:
        return False
    # If no exception was raised, all path components and hence this
    # pathname itself are valid. (Praise be to the curmudgeonly python.)
    else:
        return True
    # If any other exception was raised, this is an unrelated fatal issue
    # (e.g., a bug). Permit this exception to unwind the call stack.
    #
    # Did we mention this should be shipped with Python already?

Done. Don't squint at that code. (It bites.)

Question #2: Possibly Invalid Pathname Existence or Creatability, Eh?

Testing the existence or creatability of possibly invalid pathnames is, given the above solution, mostly trivial. The little key here is to call the previously defined function before testing the passed path:

def is_path_creatable(pathname: str) -> bool:
    '''
    `True` if the current user has sufficient permissions to create the passed
    pathname; `False` otherwise.
    '''
    # Parent directory of the passed path. If empty, we substitute the current
    # working directory (CWD) instead.
    dirname = os.path.dirname(pathname) or os.getcwd()
    return os.access(dirname, os.W_OK)

def is_path_exists_or_creatable(pathname: str) -> bool:
    '''
    `True` if the passed pathname is a valid pathname for the current OS _and_
    either currently exists or is hypothetically creatable; `False` otherwise.

    This function is guaranteed to _never_ raise exceptions.
    '''
    try:
        # To prevent "os" module calls from raising undesirable exceptions on
        # invalid pathnames, is_pathname_valid() is explicitly called first.
        return is_pathname_valid(pathname) and (
            os.path.exists(pathname) or is_path_creatable(pathname))
    # Report failure on non-fatal filesystem complaints (e.g., connection
    # timeouts, permissions issues) implying this path to be inaccessible. All
    # other exceptions are unrelated fatal issues and should not be caught here.
    except OSError:
        return False

Done and done. Except not quite.

Question #3: Possibly Invalid Pathname Existence or Writability on Windows

There exists a caveat. Of course there does.

As the official os.access() documentation admits:

Note: I/O operations may fail even when os.access() indicates that they would succeed, particularly for operations on network filesystems which may have permissions semantics beyond the usual POSIX permission-bit model.

To no one's surprise, Windows is the usual suspect here. Thanks to extensive use of Access Control Lists (ACL) on NTFS filesystems, the simplistic POSIX permission-bit model maps poorly to the underlying Windows reality. While this (arguably) isn't Python's fault, it might nonetheless be of concern for Windows-compatible applications.

If this is you, a more robust alternative is wanted. If the passed path does not exist, we instead attempt to create a temporary file guaranteed to be immediately deleted in the parent directory of that path – a more portable (if expensive) test of creatability:

import os, tempfile

def is_path_sibling_creatable(pathname: str) -> bool:
    '''
    `True` if the current user has sufficient permissions to create **siblings**
    (i.e., arbitrary files in the parent directory) of the passed pathname;
    `False` otherwise.
    '''
    # Parent directory of the passed path. If empty, we substitute the current
    # working directory (CWD) instead.
    dirname = os.path.dirname(pathname) or os.getcwd()

    try:
        # For safety, explicitly close and hence delete this temporary file
        # immediately after creating it in the passed path's parent directory.
        with tempfile.TemporaryFile(dir=dirname): pass
        return True
    # While the exact type of exception raised by the above function depends on
    # the current version of the Python interpreter, all such types subclass the
    # following exception superclass.
    except EnvironmentError:
        return False

def is_path_exists_or_creatable_portable(pathname: str) -> bool:
    '''
    `True` if the passed pathname is a valid pathname on the current OS _and_
    either currently exists or is hypothetically creatable in a cross-platform
    manner optimized for POSIX-unfriendly filesystems; `False` otherwise.

    This function is guaranteed to _never_ raise exceptions.
    '''
    try:
        # To prevent "os" module calls from raising undesirable exceptions on
        # invalid pathnames, is_pathname_valid() is explicitly called first.
        return is_pathname_valid(pathname) and (
            os.path.exists(pathname) or is_path_sibling_creatable(pathname))
    # Report failure on non-fatal filesystem complaints (e.g., connection
    # timeouts, permissions issues) implying this path to be inaccessible. All
    # other exceptions are unrelated fatal issues and should not be caught here.
    except OSError:
        return False

Note, however, that even this may not be enough.

Thanks to User Access Control (UAC), the ever-inimicable Windows Vista and all subsequent iterations thereof blatantly lie about permissions pertaining to system directories. When non-Administrator users attempt to create files in either the canonical C:\Windows or C:\Windows\system32 directories, UAC superficially permits the user to do so while actually isolating all created files into a "Virtual Store" in that user's profile. (Who could have possibly imagined that deceiving users would have harmful long-term consequences?)

This is crazy. This is Windows.

Prove It

Dare we? It's time to test-drive the above tests.

Since NULL is the only character prohibited in pathnames on UNIX-oriented filesystems, let's leverage that to demonstrate the cold, hard truth – ignoring non-ignorable Windows shenanigans, which frankly bore and anger me in equal measure:

>>> print('"foo.bar" valid? ' + str(is_pathname_valid('foo.bar')))
"foo.bar" valid? True
>>> print('Null byte valid? ' + str(is_pathname_valid('\x00')))
Null byte valid? False
>>> print('Long path valid? ' + str(is_pathname_valid('a' * 256)))
Long path valid? False
>>> print('"/dev" exists or creatable? ' + str(is_path_exists_or_creatable('/dev')))
"/dev" exists or creatable? True
>>> print('"/dev/foo.bar" exists or creatable? ' + str(is_path_exists_or_creatable('/dev/foo.bar')))
"/dev/foo.bar" exists or creatable? False
>>> print('Null byte exists or creatable? ' + str(is_path_exists_or_creatable('\x00')))
Null byte exists or creatable? False

Beyond sanity. Beyond pain. You will find Python portability concerns.

To make things efficient, you need to do declare that one of the columns to be a primary key:

ALTER TABLE #mytable
ADD PRIMARY KEY(KeyColumn)

That won't take a variable for the column name.

Trust me, you are MUCH better off doing a: CREATE #myTable TABLE (or possibly a DECLARE TABLE @myTable) , which allows you to set IDENTITY and PRIMARY KEY directly.

I'm looking for the same. The one I liked most till now is this one for ExtJs - except I havent tested it with large Lists: www.sencha.com/deploy/dev/examples/form/combos.html

Here is another really(!) fast one: http://jsearchdropdown.sourceforge.net/

For example the SexyCombo works quite fantastic but is way to slow for longer lists. The SexyCombo folk UFD is a lot faster, but initialization time is still quite slow for really huge lists. Besides I get sometimes some little! "flashing". But I guess there will be some updates in the near future.

The Enter key should have the keycode 13. Is it not working?

# find like file listing for s3 files
aws s3api --profile <<profile-name>> \
--endpoint-url=<<end-point-url>> list-objects \
--bucket <<bucket-name>> --query 'Contents[].{Key: Key}'

Crosstab function is available under the tablefunc extension. You'll have to create this extension one time for the database.

CREATE EXTENSION tablefunc;

You can use the below code to create pivot table using cross tab:

create table test_Crosstab( section text,
<br/>status text,
<br/>count numeric)

<br/>insert into test_Crosstab values ( 'A','Active',1)
                <br/>,( 'A','Inactive',2)
                <br/>,( 'B','Active',4)
                <br/>,( 'B','Inactive',5)

select * from crosstab(
<br/>'select section
    <br/>,status
    <br/>,count
    <br/>from test_crosstab'
    <br/>)as ctab ("Section" text,"Active" numeric,"Inactive" numeric)

you can build and execute dynamic sql to do this, but its really not ideal

You can use Toolbar inside the fragment and it is easy to handle. First add Toolbar to layout of the fragment

<android.support.v7.widget.Toolbar
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/toolbar"
    android:layout_height="wrap_content"
    android:layout_width="match_parent"
    android:fitsSystemWindows="true"
    android:minHeight="?attr/actionBarSize"
    app:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
    android:background="?attr/colorPrimaryDark">
</android.support.v7.widget.Toolbar>

Inside the onCreateView Method in the fragment you can handle the toolbar like this.

 Toolbar toolbar = (Toolbar) view.findViewById(R.id.toolbar);
 toolbar.setTitle("Title");
 toolbar.setNavigationIcon(R.drawable.ic_arrow_back);

IT will set the toolbar,title and the back arrow navigation to toolbar.You can set any icon to setNavigationIcon method.

If you need to trigger any event when click toolbar navigation icon you can use this.

 toolbar.setNavigationOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
           //handle any click event
    });

If your activity have navigation drawer you may need to open that when click the navigation back button. you can open that drawer like this.

 toolbar.setNavigationOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            DrawerLayout drawer = (DrawerLayout) getActivity().findViewById(R.id.drawer_layout);
            drawer.openDrawer(Gravity.START);
        }
    });

Full code is here

 public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    //inflate the layout to the fragement
    view = inflater.inflate(R.layout.layout_user,container,false);

    //initialize the toolbar
    Toolbar toolbar = (Toolbar) view.findViewById(R.id.toolbar);
    toolbar.setTitle("Title");
    toolbar.setNavigationIcon(R.drawable.ic_arrow_back);
    toolbar.setNavigationOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            //open navigation drawer when click navigation back button
            DrawerLayout drawer = (DrawerLayout) getActivity().findViewById(R.id.drawer_layout);
            drawer.openDrawer(Gravity.START);
        }
    });
    return view;
}

If its javascript that runs on a button click, then making the change under Sources>Sources (in the developer tools in chrome ) and pressing Ctrl +S to save, is enough. I do this all the time.

If you refresh the page, your javascript changes would be gone, but chrome will still remember your break points.

With SQL Server 2019, you can use APPROX_COUNT_DISTINCT, which:

returns the approximate number of unique non-null values in a group

and from the docs:

APPROX_COUNT_DISTINCT is designed for use in big data scenarios and is optimized for the following conditions:

• Access of data sets that are millions of rows or higher and
• Aggregation of a column or columns that have many distinct values

Also, the function

• implementation guarantees up to a 2% error rate within a 97% probability
• requires less memory than an exhaustive COUNT DISTINCT operation
• given the smaller memory footprint is less likely to spill memory to disk compared to a precise COUNT DISTINCT operation.

The algorithm behind the implementation its HyperLogLog.

You could do something this way:

$(document.body).find('*').each(function() {
    if($(this).hasClass('lollypops')){ //class replacing..many ways to do this :)
        $(this).removeClass('lollypops');
        $(this).addClass('marshmellows');
    }
    var tmp = $(this).children().remove(); //removing and saving children to a tmp obj
    var text = $(this).text(); //getting just current node text
    text = text.replace(/lollypops/g, "marshmellows"); //replacing every lollypops occurence with marshmellows
    $(this).text(text); //setting text
    $(this).append(tmp); //re-append 'foundlings'
});

example: http://jsfiddle.net/steweb/MhQZD/

 .icon { 
  width: 48px;
  height: 48px;
  display: inline-block;
  background: url(https://s3-us-west-2.amazonaws.com/s.cdpn.io/18515/heart.svg) no-repeat 50% 50%; 
  background-size: cover;
}

.icon-orange { 
  -webkit-filter: hue-rotate(40deg) saturate(0.5) brightness(390%) saturate(4); 
  filter: hue-rotate(40deg) saturate(0.5) brightness(390%) saturate(4); 
}

.icon-yellow {
  -webkit-filter: hue-rotate(70deg) saturate(100);
  filter: hue-rotate(70deg) saturate(100);
}

codeben article and demo

Previous answers got you list of torch.Size Here is how to get list of ints

listofints = [int(x) for x in tensor.shape]

use following events instead of "onchange"

- onkeyup(event)
- onkeydown(event)
- onkeypress(event)

you need quotes around the string in javascript

var htmlString="<?php echo $htmlString; ?>";

Data view is good Feature of data table . We can filter the data table as per our requirements using data view . Below Functions is After binding data table to list box data source then filter by text box control . ( this condition you can change as per your needs .Contains(txtSearch.Text.Trim()) )

Private Sub BindClients()

   okcl = 0

    sql = "Select * from Client Order By cname"        
    Dim dacli As New SqlClient.SqlDataAdapter
    Dim cmd As New SqlClient.SqlCommand()
    cmd.CommandText = sql
    cmd.CommandType = CommandType.Text
    dacli.SelectCommand = cmd
    dacli.SelectCommand.Connection = Me.sqlcn
    Dim dtcli As New DataTable
    dacli.Fill(dtcli)
    dacli.Fill(dataTableClients)
    lstboxc.DataSource = dataTableClients
    lstboxc.DisplayMember = "cname"
    lstboxc.ValueMember = "ccode"
    okcl = 1

    If dtcli.Rows.Count > 0 Then
        ccode = dtcli.Rows(0)("ccode")
        Call ClientDispData1()
    End If
End Sub

Private Sub FilterClients()        

    Dim query As EnumerableRowCollection(Of DataRow) = From dataTableClients In 
    dataTableClients.AsEnumerable() Where dataTableClients.Field(Of String) 
    ("cname").Contains(txtSearch.Text.Trim()) Order By dataTableClients.Field(Of 
    String)("cname") Select dataTableClients

    Dim dataView As DataView = query.AsDataView()
    lstboxc.DataSource = dataView
    lstboxc.DisplayMember = "cname"
    lstboxc.ValueMember = "ccode"
    okcl = 1
    If dataTableClients.Rows.Count > 0 Then
        ccode = dataTableClients.Rows(0)("ccode")
        Call ClientDispData1()
    End If
End Sub

I'm quite sure you won't get this 32Bit DLL working in Office 64Bit. The DLL needs to be updated by the author to be compatible with 64Bit versions of Office.

The code changes you have found and supplied in the question are used to convert calls to APIs that have already been rewritten for Office 64Bit. (Most Windows APIs have been updated.)

From: http://technet.microsoft.com/en-us/library/ee681792.aspx:

"ActiveX controls and add-in (COM) DLLs (dynamic link libraries) that were written for 32-bit Office will not work in a 64-bit process."

Edit: Further to your comment, I've tried the 64Bit DLL version on Win 8 64Bit with Office 2010 64Bit. Since you are using User Defined Functions called from the Excel worksheet you are not able to see the error thrown by Excel and just end up with the #VALUE returned.

If we create a custom procedure within VBA and try one of the DLL functions we see the exact error thrown. I tried a simple function of swe_day_of_week which just has a time as an input and I get the error Run-time error '48' File not found: swedll32.dll.

Now I have the 64Bit DLL you supplied in the correct locations so it should be found which suggests it has dependencies which cannot be located as per https://stackoverflow.com/a/8607250/1733206

I've got all the .NET frameworks installed which would be my first guess, so without further information from the author it might be difficult to find the problem.

Edit2: And after a bit more investigating it appears the 64Bit version you have supplied is actually a 32Bit version. Hence the error message on the 64Bit Office. You can check this by trying to access the '64Bit' version in Office 32Bit.

public class Bubblesort{

  public static int arr[];

  public static void main(String args[]){

    System.out.println("Enter number of element you have in array for performing bubblesort");

    int numbofele = Integer.parseInt(args[0]);

    System.out.println("numer of element entered is"+ "\n" + numbofele);

    arr= new int[numbofele];

    System.out.println("Enter Elements of array");

    System.out.println("The given array is");


    for(int i=0,j=1;i<numbofele;i++,j++){

      arr[i]=Integer.parseInt(args[j]);

      System.out.println(arr[i]);

    }

    boolean swapped = false;

    System.out.println("The sorted array is");

    for(int k=0;k<numbofele-1;k++){


      for(int l=0;l+1<numbofele-k;l++){

        if(arr[l]>arr[l+1]){

          int temp = arr[l];
          arr[l]= arr[l+1];
          arr[l+1]=temp;
          swapped=true;

        } 

      }

         if(!swapped){

            for(int m=0;m<numbofele;m++){

       System.out.println(arr[m]);

    }

      return;

      }


    }

    for(int m=0;m<numbofele;m++){

       System.out.println(arr[m]);

    }


  }


}

Hi there is an easy way with overflow hidden method on right element.

    .content .left {_x000D_
        float:left;_x000D_
        width:100px;_x000D_
        background-color:green;_x000D_
      }_x000D_
      .content .right {_x000D_
        overflow: hidden;_x000D_
        background-color:red;_x000D_
      }

<!DOCTYPE html>   _x000D_
<html lang="en">     _x000D_
    <head>      _x000D_
           _x000D_
        <title>Content Menu</title>         _x000D_
          _x000D_
    </head>_x000D_
    <body>    _x000D_
    <div class="content">_x000D_
      <div class="left">_x000D_
        <p>Hi, Flo! I am Left</p>_x000D_
      </div>_x000D_
      <div class="right">  _x000D_
        <p>is</p>_x000D_
        <p>this</p>_x000D_
        <p>what</p>_x000D_
        <p>you are looking for?</p>_x000D_
        <p> It done with overflow hidden and result is same.</p>_x000D_
      </div>_x000D_
    </div>_x000D_
    </body>_x000D_
</html> 

You can also use any(), map() like so:

if any(map(l.startswith, x)):
    pass # Do something

Or alternatively, using a generator expression:

if any(l.startswith(s) for s in x)
    pass # Do something

select dateadd(minute, datediff(minute, 0, Date), 0),
       sum(SnapShotValue)
FROM [FRIIB].[dbo].[ArchiveAnalog]
group by dateadd(minute, datediff(minute, 0, Date), 0)

The Why

java.util.logging has a root logger that defaults to Level.INFO, and a ConsoleHandler attached to it that also defaults to Level.INFO. FINE is lower than INFO, so fine messages are not displayed by default.

Solution 1

Create a logger for your whole application, e.g. from your package name or use Logger.getGlobal(), and hook your own ConsoleLogger to it. Then either ask root logger to shut up (to avoid duplicate output of higher level messages), or ask your logger to not forward logs to root.

public static final Logger applog = Logger.getGlobal();
...

// Create and set handler
Handler systemOut = new ConsoleHandler();
systemOut.setLevel( Level.ALL );
applog.addHandler( systemOut );
applog.setLevel( Level.ALL );

// Prevent logs from processed by default Console handler.
applog.setUseParentHandlers( false ); // Solution 1
Logger.getLogger("").setLevel( Level.OFF ); // Solution 2

Solution 2

Alternatively, you may lower the root logger's bar.

You can set them by code:

Logger rootLog = Logger.getLogger("");
rootLog.setLevel( Level.FINE );
rootLog.getHandlers()[0].setLevel( Level.FINE ); // Default console handler

Or with logging configuration file, if you are using it:

.level = FINE
java.util.logging.ConsoleHandler.level = FINE

By lowering the global level, you may start seeing messages from core libraries, such as from some Swing or JavaFX components. In this case you may set a Filter on the root logger to filter out messages not from your program.

The asterisk (*) means "zero or more of the previous item".

If you want to match any single character use

sed -i 's/string-./string-0/g' file.txt

If you want to match any string (i.e. any single character zero or more times) use

sed -i 's/string-.*/string-0/g' file.txt

Key in 1 + G and it will take you to the beginning of the file. Converserly, G will take you to the end of the file.

Jquery:

var afterDot = value.substr(value.lastIndexOf('_') + 1);

Javascript:

var myString = 'asd/f/df/xc/asd/test.jpg'
var parts    = myString.split('/');
var answer   = parts[parts.length - 1];
console.log(answer);

Replace '_' || '/' to your own need

Using white-space: pre-line allows you to input the text directly in the HTML with line breaks without having to use \n

If you use the innerText property of the element via JavaScript on a non-pre element e.g. a <div>, the \n values will be replaced with <br> in the DOM by default

• innerText: replaces \n with <br>
• innerHTML, textContent: require the use of styling white-space

It depends on how your applying the text, but there are a number of options

const node = document.createElement('div');
node.innerText = '\n Test \n One '

I believe you have libx264 installed and configured with ffmpeg to convert video to h264... Then you can try with -vcodec libx264... The -format option is for showing available formats, this is not a conversion option I think...

Another option (depending on the use case) would be to use DataMystic's TextPipe and DataPipe products. I've used them in the past, and they've worked great in the complex replacement scenarios, and without having to export data out of the database for find-and-replace.

If your constructor is similar to this one:

public Example(String example) {
    if (example == null) {
        throw new NullPointerException();
    }
    //do fun things with valid example here
}

Then, when you run this JUnit test you will get a green bar:

@Test(expected = NullPointerException.class)
public void constructorShouldThrowNullPointerException() {
    Example example = new Example(null);
}

If you want to change MSSQL server language, you can use the following QUERY:

EXEC sp_configure 'default language', 'British English';

To get support for C++14 in Eclipse Luna, you could do these steps:

• In C++ General -> Preprocessor Include -> Providers -> CDT Cross GCC Built-in Compiler Settings, add "-std=c++14"
• In C++ Build -> Settings -> Cross G++ Compiler -> Miscellaneous, add "-std=c++14"

Reindex your project and eventually restart Eclipse. It should work as expected.

Based on gbinflames' answer, I kept the POST and URL, so that the form would continue to work for those with JS off.

<form class="myform" action="http://XXXXXXXXXlist-manage2.com/subscribe/post" method="POST">
  <input type="hidden" name="u" value="XXXXXXXXXXXXXXXX">
  <input type="hidden" name="id" value="XXXXXXXXX">
  <input class="input" type="text" value="" name="MERGE1" placeholder="First Name" required>
  <input type="submit" value="Send" name="submit" id="mc-embedded-subscribe">
</form>

Then, using jQuery's .submit() changed the type, and URL to handle JSON repsonses.

$('.myform').submit(function(e) {
  var $this = $(this);
  $.ajax({
      type: "GET", // GET & url for json slightly different
      url: "http://XXXXXXXX.list-manage2.com/subscribe/post-json?c=?",
      data: $this.serialize(),
      dataType    : 'json',
      contentType: "application/json; charset=utf-8",
      error       : function(err) { alert("Could not connect to the registration server."); },
      success     : function(data) {
          if (data.result != "success") {
              // Something went wrong, parse data.msg string and display message
          } else {
              // It worked, so hide form and display thank-you message.
          }
      }
  });
  return false;
});

Yes remove the commas:

parseFloat(yournumber.replace(/,/g, ''));

If a vector has N elements, there are N+1 possible answers for find. std::find and std::find_if return an iterator to the found element OR end() if no element is found. To change the code as little as possible, your find function should return the equivalent position:

size_t find( const vector<type>& where, int searchParameter )
{
   for( size_t i = 0; i < where.size(); i++ ) {
       if( conditionMet( where[i], searchParameter ) ) {
           return i;
       }
    }
    return where.size();
}
// caller:
const int position = find( firstVector, parameter );
if( position != secondVector.size() ) {
    doAction( secondVector[position] );
}

I would still use std::find_if, though.

Put the dbname parameter in your connection string. It works for me while everything else failed.

Also when doing the select, specify the your_schema.your_table like this:

select * from my_schema.your_table

Here's a simple HSV color thresholder script to determine the lower/upper color ranges using trackbars for any image on the disk. Simply change the image path in cv2.imread()

import cv2
import numpy as np

def nothing(x):
    pass

# Load image
image = cv2.imread('1.jpg')

# Create a window
cv2.namedWindow('image')

# Create trackbars for color change
# Hue is from 0-179 for Opencv
cv2.createTrackbar('HMin', 'image', 0, 179, nothing)
cv2.createTrackbar('SMin', 'image', 0, 255, nothing)
cv2.createTrackbar('VMin', 'image', 0, 255, nothing)
cv2.createTrackbar('HMax', 'image', 0, 179, nothing)
cv2.createTrackbar('SMax', 'image', 0, 255, nothing)
cv2.createTrackbar('VMax', 'image', 0, 255, nothing)

# Set default value for Max HSV trackbars
cv2.setTrackbarPos('HMax', 'image', 179)
cv2.setTrackbarPos('SMax', 'image', 255)
cv2.setTrackbarPos('VMax', 'image', 255)

# Initialize HSV min/max values
hMin = sMin = vMin = hMax = sMax = vMax = 0
phMin = psMin = pvMin = phMax = psMax = pvMax = 0

while(1):
    # Get current positions of all trackbars
    hMin = cv2.getTrackbarPos('HMin', 'image')
    sMin = cv2.getTrackbarPos('SMin', 'image')
    vMin = cv2.getTrackbarPos('VMin', 'image')
    hMax = cv2.getTrackbarPos('HMax', 'image')
    sMax = cv2.getTrackbarPos('SMax', 'image')
    vMax = cv2.getTrackbarPos('VMax', 'image')

    # Set minimum and maximum HSV values to display
    lower = np.array([hMin, sMin, vMin])
    upper = np.array([hMax, sMax, vMax])

    # Convert to HSV format and color threshold
    hsv = cv2.cvtColor(image, cv2.COLOR_BGR2HSV)
    mask = cv2.inRange(hsv, lower, upper)
    result = cv2.bitwise_and(image, image, mask=mask)

    # Print if there is a change in HSV value
    if((phMin != hMin) | (psMin != sMin) | (pvMin != vMin) | (phMax != hMax) | (psMax != sMax) | (pvMax != vMax) ):
        print("(hMin = %d , sMin = %d, vMin = %d), (hMax = %d , sMax = %d, vMax = %d)" % (hMin , sMin , vMin, hMax, sMax , vMax))
        phMin = hMin
        psMin = sMin
        pvMin = vMin
        phMax = hMax
        psMax = sMax
        pvMax = vMax

    # Display result image
    cv2.imshow('image', result)
    if cv2.waitKey(10) & 0xFF == ord('q'):
        break

cv2.destroyAllWindows()

If you want to play the *.mp3 or *.wav file, i think the easiest way would be to use SFML.

An old thread, but since I didn't find it elsewhere, here is one more possibility:

If you're using servlet-api 3.0+, then your web.xml must NOT include metadata-complete="true" attribute

This tells tomcat to map the servlets using data given in web.xml instead of using the @WebServlet annotation.

Yes. Depending on your exact case:

• You can use java.util.Calendar:

  Calendar c = Calendar.getInstance();
  c.setTime(yourDate);
  int dayOfWeek = c.get(Calendar.DAY_OF_WEEK);
  

• if you need the output to be Tue rather than 3 (Days of week are indexed starting at 1 for Sunday, see Calendar.SUNDAY), instead of going through a calendar, just reformat the string: new SimpleDateFormat("EE").format(date) (EE meaning "day of week, short version")

• if you have your input as string, rather than Date, you should use SimpleDateFormat to parse it: new SimpleDateFormat("dd/M/yyyy").parse(dateString)

• you can use joda-time's DateTime and call dateTime.dayOfWeek() and/or DateTimeFormat.

• edit: since Java 8 you can now use java.time package instead of joda-time

For loop is not officially supported yet by SQL server. Already there is answer on achieving FOR Loop's different ways. I am detailing answer on ways to achieve different types of loops in SQL server.

FOR Loop

DECLARE @cnt INT = 0;

WHILE @cnt < 10
BEGIN
   PRINT 'Inside FOR LOOP';
   SET @cnt = @cnt + 1;
END;

PRINT 'Done FOR LOOP';

If you know, you need to complete first iteration of loop anyway, then you can try DO..WHILE or REPEAT..UNTIL version of SQL server.

DO..WHILE Loop

DECLARE @X INT=1;

WAY:  --> Here the  DO statement

  PRINT @X;

  SET @X += 1;

IF @X<=10 GOTO WAY;

REPEAT..UNTIL Loop

DECLARE @X INT = 1;

WAY:  -- Here the REPEAT statement

  PRINT @X;

  SET @X += 1;

IFNOT(@X > 10) GOTO WAY;

Reference

Yes this will be accesible from other machines if you bind on any external IP address. For example binding to http://*:80 . Note that binding to http://localhost:80 will only bind on 127.0.0.1 interface and therefore will not be accesible from other machines.

Visual Studio is overriding your port. You can change VS port editing this file Properties\launchSettings.json or else set it by code:

        var host = new WebHostBuilder()
            .UseKestrel()
            .UseContentRoot(Directory.GetCurrentDirectory())
            .UseIISIntegration()
            .UseStartup<Startup>()
            .UseUrls("http://*:80") // <-----
            .Build();

        host.Run();

A step by step guide using an external config file is available here.

Based on the answer by Korakot Chaovavanich, I created the function below to download all files needed within a Colab instance.

from google.colab import files
def getLocalFiles():
    _files = files.upload()
    if len(_files) >0:
       for k,v in _files.items():
         open(k,'wb').write(v)
getLocalFiles()

You can then use the usual 'import' statement to import your local files in Colab. I hope this helps

I just changed @Jotne's answer for "for loop".

for i in `seq 11 20`; do host myserver-$i | awk -v i="$i" '{print "myserver-"i" " $4}'; done

As long as you haven't been sticking the CSS in element.style:

1. Go to a style you have added. There should be a link saying inspector-stylesheet:

2. Click on that, and it will open up all the CSS that you have added in the sources panel

3. Copy and paste it - yay!

If you have been using element.style:

You can just right-click on your HTML element, click Edit as HTML and then copy and paste the HTML with the inline styles.

>>> dict(zip([1, 2, 3, 4], ['a', 'b', 'c', 'd']))
{1: 'a', 2: 'b', 3: 'c', 4: 'd'}

If they are not the same size, zip will truncate the longer one.

Approach 1

div {_x000D_
  height: 90px;_x000D_
  line-height: 90px;_x000D_
  text-align: center;_x000D_
  border: 2px dashed #f69c55;_x000D_
}

<div>_x000D_
  Hello, World!!_x000D_
</div>

Approach 2

div {_x000D_
  height: 200px;_x000D_
  line-height: 200px;_x000D_
  text-align: center;_x000D_
  border: 2px dashed #f69c55;_x000D_
}_x000D_
span {_x000D_
  display: inline-block;_x000D_
  vertical-align: middle;_x000D_
  line-height: normal;_x000D_
}

<div>_x000D_
  <span>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Haec et tu ita posuisti, et verba vestra sunt. Non enim iam stirpis bonum quaeret, sed animalis. </span>_x000D_
</div>

Approach 3

div {_x000D_
  display: table;_x000D_
  height: 100px;_x000D_
  width: 100%;_x000D_
  text-align: center;_x000D_
  border: 2px dashed #f69c55;_x000D_
}_x000D_
span {_x000D_
  display: table-cell;_x000D_
  vertical-align: middle;_x000D_
}

<div>_x000D_
  <span>Lorem ipsum dolor sit amet, consectetur adipiscing elit.</span>_x000D_
</div>

I realize this is years late, but I thought I could expand on Conor's answer and add a little bit more to the discussion.

Can someone give me a step by step description of how cookie based authentication works? I've never done anything involving either authentication or cookies. What does the browser need to do? What does the server need to do? In what order? How do we keep things secure?

Step 1: Client > Signing up

Before anything else, the user has to sign up. The client posts a HTTP request to the server containing his/her username and password.

Step 2: Server > Handling sign up

The server receives this request and hashes the password before storing the username and password in your database. This way, if someone gains access to your database they won't see your users' actual passwords.

Step 3: Client > User login

Now your user logs in. He/she provides their username/password and again, this is posted as a HTTP request to the server.

Step 4: Server > Validating login

The server looks up the username in the database, hashes the supplied login password, and compares it to the previously hashed password in the database. If it doesn't check out, we may deny them access by sending a 401 status code and ending the request.

Step 5: Server > Generating access token

If everything checks out, we're going to create an access token, which uniquely identifies the user's session. Still in the server, we do two things with the access token:

1. Store it in the database associated with that user
2. Attach it to a response cookie to be returned to the client. Be sure to set an expiration date/time to limit the user's session

Henceforth, the cookies will be attached to every request (and response) made between the client and server.

Step 6: Client > Making page requests

Back on the client side, we are now logged in. Every time the client makes a request for a page that requires authorization (i.e. they need to be logged in), the server obtains the access token from the cookie and checks it against the one in the database associated with that user. If it checks out, access is granted.

This should get you started. Be sure to clear the cookies upon logout!

SUMIF didn't worked for me, had to use SUMIFS.

=SUMIFS(TableAmount,TableMonth,"January")

TableAmount is the table to sum the values, TableMonth the table where we search the condition and January, of course, the condition to meet.

Hope this can help someone!

There could be two ways/syntax to bind a static property. If p is a static property in class MainWindow, then binding for textbox will be:

1.

<TextBox Text="{x:Static local:MainWindow.p}" />

2.

<TextBox Text="{Binding Source={x:Static local:MainWindow.p},Mode=OneTime}" />

Update

Using ASP.NET Core 2.0 will automatically add the IConfiguration instance of your application in the dependency injection container. This also works in conjunction with ConfigureAppConfiguration on the WebHostBuilder.

For example:

public static void Main(string[] args)
{
    var host = WebHost.CreateDefaultBuilder(args)
        .ConfigureAppConfiguration(builder =>
        {
            builder.AddIniFile("foo.ini");
        })
        .UseStartup<Startup>()
        .Build();

    host.Run();
}

It's just as easy as adding the IConfiguration instance to the service collection as a singleton object in ConfigureServices:

public void ConfigureServices(IServiceCollection services)
{
   services.AddSingleton<IConfiguration>(Configuration);

   // ...
}

Where Configuration is the instance in your Startup class.

This allows you to inject IConfiguration in any controller or service:

public class HomeController
{
   public HomeController(IConfiguration configuration)
   {
      // Use IConfiguration instance
   }
}

One possibility:

String result = str.substring(0, index) + str.substring(index+1);

Note that the result is a new String (as well as two intermediate String objects), because Strings in Java are immutable.

Try with this solution: http://phppot.com/php/sorting-mysql-row-order-using-jquery/ where new order is saved in some HMTL element. Then you submit the form with this data to some PHP script, and iterate trough it with for loop.

Note: I had to add another db field of type INT(11) which is updated(timestamp'ed) on each iteration - it serves for script to know which row is recenty updated, or else you end up with scrambled results.

Permanent:

UPDATE
  MyTable
SET
  MyColumn = UPPER(MyColumn)

Temporary:

SELECT
  UPPER(MyColumn) AS MyColumn
FROM
  MyTable

You can use the fixed CSS position property to accomplish this. There is a basic tutorial on this here.

EDIT: However, this approach is NOT supported in IE versions < IE7, and only in IE7 if it is in standards mode. This is discussed in a little more detail here.

There is also a hack, explained here, that shows how to accomplish fixed positioning in IE6 without affecting absolute positioning. What version of IE are you targeting your website for?

You could descendingly order the tabele by id and limit the number of results to one:

SELECT id FROM tablename ORDER BY id DESC LIMIT 1

BUT: ORDER BY rearranges the entire table for this request. So if you have a lot of data and you need to repeat this operation several times, I would not recommend this solution.

got it solved by first creating new "Path" variable under User variables (note that after fresh windows install Path variable is not created as User variable, only as system) after that, I appended %M2% (pointing to maven dir/bin) to (freshly created) user Path variable. after that restarted cmd window and it worked like a charm.

In case you are as talented as me and have made the Window menu invisible, there is no way back, as the Customize and Reset Perspective are no longer available. Having good other perspectives do not help, as you only can apparently edit the current perspective only. To get out without nuking all the workspace settings, the following may work:

• Open the file $WORKSPACE_DIR/.metadata/.plugins/org.eclipse.e4.workbench
• In this XML file, find the element that starts with <persistedState key="persp.hiddenItems" for the perspective in question.
• This element has an attribute named value, which is a comma-separated list. You may look through the list and manually remove list items from this value which look like they need to be unhidden.
• There are likely multiple items, so a more practical solution is to delete the whole XML element.

In my case, the offending element appeared close to the beginning of the file:

    <children xsi:type="advanced:Perspective" xmi:id="..." elementId="org.eclipse.cdt.ui.CPerspective" selectedElement="..." label="C/C++" iconURI="platform:/plugin/org.eclipse.cdt.ui/icons/view16/c_pers.gif">
  <persistedState key="persp.hiddenItems" value="persp.hideToolbarSC:org.eclipse.jdt.ui.actions.OpenProjectWizard,...,"/>

where some parts were replaced with dots. Obviously, you need to be careful editing machine-generated files. Somebody may be able to write a script.

Now you can safely lock you out again.

You must wrap the returning object literal into parentheses. Otherwise curly braces will be considered to denote the function’s body. The following works:

p => ({ foo: 'bar' });

You don't need to wrap any other expression into parentheses:

p => 10;
p => 'foo';
p => true;
p => [1,2,3];
p => null;
p => /^foo$/;

and so on.

Reference: MDN - Returning object literals

$str = str_replace('\\', '/', $str);

Determine if a cell is within a range using VBA in Microsoft Excel:

From the linked site (maintaining credit to original submitter):

VBA macro tip contributed by Erlandsen Data Consulting offering Microsoft Excel Application development, template customization, support and training solutions

Function InRange(Range1 As Range, Range2 As Range) As Boolean
    ' returns True if Range1 is within Range2
    InRange = Not (Application.Intersect(Range1, Range2) Is Nothing)
End Function


Sub TestInRange()
    If InRange(ActiveCell, Range("A1:D100")) Then
        ' code to handle that the active cell is within the right range
        MsgBox "Active Cell In Range!"
    Else
        ' code to handle that the active cell is not within the right range
        MsgBox "Active Cell NOT In Range!"
    End If
End Sub

1)Yes it is, when there is style then it is styling your code(css).2) is belong to html it is like a container that keep your css.

The "bind" operation is basically saying, "use this local UDP port for sending and receiving data. In other words, it allocates that UDP port for exclusive use for your application. (Same holds true for TCP sockets).

When you bind to "0.0.0.0" (INADDR_ANY), you are basically telling the TCP/IP layer to use all available adapters for listening and to choose the best adapter for sending. This is standard practice for most socket code. The only time you wouldn't specify 0 for the IP address is when you want to send/receive on a specific network adapter.

Similarly if you specify a port value of 0 during bind, the OS will assign a randomly available port number for that socket. So I would expect for UDP multicast, you bind to INADDR_ANY on a specific port number where multicast traffic is expected to be sent to.

The "join multicast group" operation (IP_ADD_MEMBERSHIP) is needed because it basically tells your network adapter to listen not only for ethernet frames where the destination MAC address is your own, it also tells the ethernet adapter (NIC) to listen for IP multicast traffic as well for the corresponding multicast ethernet address. Each multicast IP maps to a multicast ethernet address. When you use a socket to send to a specific multicast IP, the destination MAC address on the ethernet frame is set to the corresponding multicast MAC address for the multicast IP. When you join a multicast group, you are configuring the NIC to listen for traffic sent to that same MAC address (in addition to its own).

Without the hardware support, multicast wouldn't be any more efficient than plain broadcast IP messages. The join operation also tells your router/gateway to forward multicast traffic from other networks. (Anyone remember MBONE?)

If you join a multicast group, all the multicast traffic for all ports on that IP address will be received by the NIC. Only the traffic destined for your binded listening port will get passed up the TCP/IP stack to your app. In regards to why ports are specified during a multicast subscription - it's because multicast IP is just that - IP only. "ports" are a property of the upper protocols (UDP and TCP).

You can read more about how multicast IP addresses map to multicast ethernet addresses at various sites. The Wikipedia article is about as good as it gets:

The IANA owns the OUI MAC address 01:00:5e, therefore multicast packets are delivered by using the Ethernet MAC address range 01:00:5e:00:00:00 - 01:00:5e:7f:ff:ff. This is 23 bits of available address space. The first octet (01) includes the broadcast/multicast bit. The lower 23 bits of the 28-bit multicast IP address are mapped into the 23 bits of available Ethernet address space.

Make sure you pip version matches your python version.

to get your python version use:

python -V

then install the correct pip. You might already have intall in that case try to use:

pip-2.5 install ...

pip-2.7 install ...

or for those of you using macports make sure your version match using.

port select --list pip

then change to the same python version you are using.

sudo port select --set pip pip27

Hope this helps. It work on my end.

Just check JSON option from the drop down next to binary; when you click raw. This should do

The default limit for the length of the request line is 8190 bytes (see LimitRequestLine directive). And if we subtract three bytes for the request method (i.e. GET), eight bytes for the version information (i.e. HTTP/1.0/HTTP/1.1) and two bytes for the separating space, we end up with 8177 bytes for the URI path plus query.

Basics

Arrays in c are declared and accessed using the [] operator. So that

int ary1[5];

declares an array of 5 integers. Elements are numbered from zero so ary1[0] is the first element, and ary1[4] is the last element. Note1: There is no default initialization, so the memory occupied by the array may initially contain anything. Note2: ary1[5] accesses memory in an undefined state (which may not even be accessible to you), so don't do it!

Multi-dimensional arrays are implemented as an array of arrays (of arrays (of ... ) ). So

float ary2[3][5];

declares an array of 3 one-dimensional arrays of 5 floating point numbers each. Now ary2[0][0] is the first element of the first array, ary2[0][4] is the last element of the first array, and ary2[2][4] is the last element of the last array. The '89 standard requires this data to be contiguous (sec. A8.6.2 on page 216 of my K&R 2nd. ed.) but seems to be agnostic on padding.

Trying to go dynamic in more than one dimension

If you don't know the size of the array at compile time, you'll want to dynamically allocate the array. It is tempting to try

double *buf3;
buf3 = malloc(3*5*sizeof(double));
/* error checking goes here */

which should work if the compiler does not pad the allocation (stick extra space between the one-dimensional arrays). It might be safer to go with:

double *buf4;
buf4 = malloc(sizeof(double[3][5]));
/* error checking */

but either way the trick comes at dereferencing time. You can't write buf[i][j] because buf has the wrong type. Nor can you use

double **hdl4 = (double**)buf;
hdl4[2][3] = 0; /* Wrong! */

because the compiler expects hdl4 to be the address of an address of a double. Nor can you use double incomplete_ary4[][]; because this is an error;

So what can you do?

• Do the row and column arithmetic yourself
• Allocate and do the work in a function
• Use an array of pointers (the mechanism qrdl is talking about)

Do the math yourself

Simply compute memory offset to each element like this:

  for (i=0; i<3; ++i){
     for(j=0; j<3; ++j){
        buf3[i * 5 + j] = someValue(i,j); /* Don't need to worry about 
                                             padding in this case */
     }
  }

Allocate and do the work in a function

Define a function that takes the needed size as an argument and proceed as normal

void dary(int x, int y){
  double ary4[x][y];
  ary4[2][3] = 5;
}

Of course, in this case ary4 is a local variable and you can not return it: all the work with the array must be done in the function you call of in functions that it calls.

An array of pointers

Consider this:

double **hdl5 = malloc(3*sizeof(double*));
/* Error checking */
for (i=0; i<3; ++i){
   hdl5[i] = malloc(5*sizeof(double))
   /* Error checking */
}

Now hdl5 points to an array of pointers each of which points to an array of doubles. The cool bit is that you can use the two-dimensional array notation to access this structure---hdl5[0][2] gets the middle element of the first row---but this is none-the-less a different kind of object than a two-dimensional array declared by double ary[3][5];.

This structure is more flexible then a two dimensional array (because the rows need not be the same length), but accessing it will generally be slower and it requires more memory (you need a place to hold the intermediate pointers).

Note that since I haven't setup any guards you'll have to keep track of the size of all the arrays yourself.

Arithmetic

c provides no support for vector, matrix or tensor math, you'll have to implement it yourself, or bring in a library.

Multiplication by a scaler and addition and subtraction of arrays of the same rank are easy: just loop over the elements and perform the operation as you go. Inner products are similarly straight forward.

Outer products mean more loops.

Simple and Easy , just add following

RewriteEngine On
RewriteCond %{HTTPS} off
RewriteRule ^(.*)$ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]

sapSet = mbo.getThisMboSet()
sapCount = sapSet.count()
saplist = []

if sapCount > 1:
   for i in range(sapCount):`enter code here`
     defaultCheck = sapSet.getMbo(i)
     saplist.append(defaultCheck.getInt("HNADEFACC"))
   defCount = saplist.count(1)
   if defCount > 1:
      errorgroup = " Please Note: you are allowed"
      errorkey = "  only One Default Account"
   if defCount < 1:
      errorgroup = " Please enter "
      errorkey = "  at leat One Default Account"
else:
   mbo.setValue("HNADEFACC",1,MboConstants.NOACCESSCHECK)

I added below contents in app "build.gradle"

implementation 'org.apache.poi:poi:4.0.0'
implementation 'org.apache.poi:poi-ooxml:4.0.0'

It is a bug in IE8.

Starting with your second question: “margin: 0 auto” centers a block, but only when width of the block is set to be less that width of parent. Usually, they get to be the same. That is why text in the example below is not centered.

<div style="height: 100px; width: 500px; background-color: Yellow;">    
    <b style="display: block; margin: 0 auto; ">text</b>
</div>

Once the display style of the b element is set to block, its width defaults to the parents width. CSS spec 10.3.3 Block-level, non-replaced elements in normal flow describes how: “If 'width' is set to 'auto', any other 'auto' values become '0' and 'width' follows from the resulting equality.” The equality mentioned there is

'margin-left' + 'border-left-width' + 'padding-left' + 'width' + 'padding-right' + 'border-right-width' + 'margin-right' = width of containing block

So, normally all autos result in a block width being equal to the width of containing block.

However, this calculation should not be applied to INPUT, which is a replaced element. Replaced elements are covered by 10.3.4 Block-level, replaced elements in normal flow. Text there says: “The used value of 'width' is determined as for inline replaced elements.” The relevant part of 10.3.2 Inline, replaced elements is: “if 'width' has a computed value of 'auto', and the element has an intrinsic width, then that intrinsic width is the used value of 'width'”.

I guess that the scenario CSS cares about is IMG element. Stackoverflow logo in this example will be centered by all browsers.

<div style="height: 100px; width: 500px; background-color: Yellow;">    
    <img style="display: block; margin: 0 auto; " border="0" src="http://stackoverflow.com/content/img/so/logo.png" alt="">
</div>

INPUT element should behave the same way.

I've used this:

RewriteEngine On

# Unless directory, remove trailing slash
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^([^/]+)/$ http://example.com/folder/$1 [R=301,L]

# Redirect external .php requests to extensionless URL
RewriteCond %{THE_REQUEST} ^(.+)\.php([#?][^\ ]*)?\ HTTP/
RewriteRule ^(.+)\.php$ http://example.com/folder/$1 [R=301,L]

# Resolve .php file for extensionless PHP URLs
RewriteRule ^([^/.]+)$ $1.php [L]

See also: this question

Try with conditions.

$id = 1;
Post::with(array('user'=>function($query) use ($id){
    $query->where('id','=',$id);
    $query->select('id','username');
}))->get();

Here is the official FAQ on installing Python Modules: http://docs.python.org/install/index.html

There are some tips which might help you.

Another possible cause of the "Error inflating class" message could be misspelling the full package name where it's specified in XML:

<com.alpenglow.androcap.GhostSurfaceCameraView android:id="@+id/ghostview_cameraview"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"/>

Opening your layout XML file in the Eclipse XML editor should highlight this problem.

$searchfor = $_GET['keyword'];
$file = 'users.txt';

$contents = file_get_contents($file);
$pattern = preg_quote($searchfor, '/');
$pattern = "/^.*$pattern.*\$/m";

if (preg_match_all($pattern, $contents, $matches)) {
    echo "Found matches:<br />";
    echo implode("<br />", $matches[0]);
} else {
    echo "No matches found";
    fclose ($file); 
}

I tried both .empty() as well as .remove() for my dropdown and both were slow. Since I had almost 4,000 options there.

I used .html("") which is much faster in my condition.
Which is below

  $(dropdown).html("");

Guid.NewGuid() will create one

Postgres Enterprise Manager from EnterpriseDB is probably the most advanced you'll find. It includes all the features of pgAdmin, plus monitoring of your hosts and database servers, predictive reporting, alerting and a SQL Profiler.

http://www.enterprisedb.com/products-services-training/products/postgres-enterprise-manager

Ninja edit disclaimer/notice: it seems that this user is affiliated with EnterpriseDB, as the linked Postgres Enterprise Manager website contains a video of one Dave Page.

Member functions that do not modify the class instance should be declared as const:

int getId() const {
    return id;
}
string getName() const {
    return name;
}

Anytime you see "discards qualifiers", it's talking about const or volatile.

This may not be exactly what you're looking for (it's not an "easy" solution to send your Tabs to the bottom of the screen) but is nevertheless an interesting alternative solution I would like to flag to you :

ScrollableTabHost is designed to behave like TabHost, but with an additional scrollview to fit more items ...

maybe digging into this open-source project you'll find an answer to your question. If I see anything easier I'll come back to you.

It says already we are running the services with port no 4200 please use another port instead of 4200. Below command is to solve the problem

ng serve --port 4300

If you need direct access:

WScript.Arguments.Item(0)
WScript.Arguments.Item(1)
...

It is possible to use raw query within a Spring Repository.

      @Query(value = "SELECT A.IS_MUTUAL_AID FROM planex AS A 
             INNER JOIN planex_rel AS B ON A.PLANEX_ID=B.PLANEX_ID  
             WHERE B.GOOD_ID = :goodId",nativeQuery = true)

      Boolean mutualAidFlag(@Param("goodId")Integer goodId);

The ternary style is generally used to save space. Semantically, they are identical. I prefer to go with the full if/then/else syntax because I don't like to sacrifice readability - I'm old-school and I prefer my braces.

The full if/then/else format is used for pretty much everything. It's especially popular if you get into larger blocks of code in each branch, you have a muti-branched if/else tree, or multiple else/ifs in a long string.

The ternary operator is common when you're assigning a value to a variable based on a simple condition or you are making multiple decisions with very brief outcomes. The example you cite actually doesn't make sense, because the expression will evaluate to one of the two values without any extra logic.

Good ideas:

this > that ? alert(this) : alert(that);  //nice and short, little loss of meaning

if(expression)  //longer blocks but organized and can be grasped by humans
{
    //35 lines of code here
}
else if (something_else)
{
    //40 more lines here
}
else if (another_one)  /etc, etc
{
    ...

Less good:

this > that ? testFucntion() ? thirdFunction() ? imlost() : whathappuh() : lostinsyntax() : thisisprobablybrokennow() ? //I'm lost in my own (awful) example by now.
//Not complete... or for average humans to read.

if(this != that)  //Ternary would be done by now
{
    x = this;
}
else
}
    x = this + 2;
}

A really basic rule of thumb - can you understand the whole thing as well or better on one line? Ternary is OK. Otherwise expand it.

You can create a label using the code below. Updated.

let yourLabel: UILabel = UILabel()
yourLabel.frame = CGRect(x: 50, y: 150, width: 200, height: 21)
yourLabel.backgroundColor = UIColor.orange
yourLabel.textColor = UIColor.black
yourLabel.textAlignment = NSTextAlignment.center
yourLabel.text = "test label"
self.view.addSubview(yourLabel)

This is my solution:

# your test class
class TestingClass(unittest.TestCase):
    
    # This will only run once for all the tests within this class
    @classmethod
    def setUpClass(cls) -> None:
       if len(sys.argv) > 1:
          cls.email = sys.argv[1]

    def testEmails(self):
        assertEqual(self.email, "[email protected]")


if __name__ == "__main__":
    unittest.main()

you could have a runner.py file with something like this:

# your runner.py
loader = unittest.TestLoader()
tests = loader.discover('.') # note that this will find all your tests, you can also provide the name of the package e.g. `loader.discover('tests')
runner = unittest.TextTestRunner(verbose=3)
result = runner.run(tests

with the above code, you should be to run your tests with runner.py [email protected]

You can't write to the HKCR (or HKLM) hives in Vista and newer versions of Windows unless you have administrative privileges. Therefore, you'll either need to be logged in as an Administrator before you run your utility, give it a manifest that says it requires Administrator level (which will prompt the user for Admin login info), or quit changing things in places that non-Administrators shouldn't be playing. :-)

Here's a simple function:

function setParent(el, newParent)
{
    newParent.appendChild(el);
}

el's childNodes are the elements to be moved, newParent is the element el will be moved to, so you would execute the function like:

var l = document.getElementById('old-parent').childNodes.length;
var a = document.getElementById('old-parent');
var b = document.getElementById('new-parent');
for (var i = l; i >= 0; i--)
{
    setParent(a.childNodes[0], b);
}

Here is the Demo

You can use strtok()

char string[]=  "abc/qwe/jkh";
char *array[10];
int i=0;

array[i] = strtok(string,"/");

while(array[i]!=NULL)
{
   array[++i] = strtok(NULL,"/");
}

You can also use the setProperty method like below

document.getElementById('divName').style.setProperty("top", "100px");

Have you tried RedirectToAction?

Practical example:

Imagine that you are modelling something like an I2C bus (signals called SCL for clock and SDA for data), where the bus is tri-state and both nets have a weak pull-up. Your testbench should model the pull-up resistor on the PCB with a value of 'H'.

scl <= 'H'; -- Testbench resistor pullup

Your I2C master or slave devices can drive the bus to '1' or '0' or leave it alone by assigning a 'Z'

Assigning a '1' to the SCL net will cause an event to happen, because the value of SCL changed.

• If you have a line of code that relies on (scl'event and scl = '1'), then you'll get a false trigger.

• If you have a line of code that relies on rising_edge(scl), then you won't get a false trigger.

Continuing the example: you assign a '0' to SCL, then assign a 'Z'. The SCL net goes to '0', then back to 'H'.

Here, going from '1' to '0' isn't triggering either case, but going from '0' to 'H' will trigger a rising_edge(scl) condition (correct), but the (scl'event and scl = '1') case will miss it (incorrect).

General Recommenation:

Use rising_edge(clk) and falling_edge(clk) instead of clk'event for all code.

int i = 100;
char c = (char)i;

There is no way to append one char to another. But you can create an array of chars and use it.

simply you can use jquery plugin to get/set the content of the div.

var divContent = $('#'DIV1).html(); $('#'DIV2).html(divContent );

for this you need to include jquery library.

TMTWWTDI: Perl has a file size operator (-s)

perl -lne '$t+=-s;END{print $t}' files.txt

at [email protected] the command that is been supported is npm cache verify