The whole point of a class is that you create an instance, and that instance encapsulates a set of data. So it's wrong to say that your variables are global within the scope of the class: say rather that an instance holds attributes, and that instance can refer to its own attributes in any of its code (via self.whatever). Similarly, any other code given an instance can use that instance to access the instance's attributes - ie instance.whatever.

For those with a C++ background, you may be interested in a comparison with the C++ equivalent:

class S
{
private: // this is not quite true, in Ruby you can still access these
  static int    k = 23;
  int           s = 15;

public:
  int get_s() { return s; }
  static int get_k() { return k; }

};

std::cerr << S::k() << "\n";

S instance;
std::cerr << instance.s() << "\n";
std::cerr << instance.k() << "\n";

As we can see, k is a static like variable. This is 100% like a global variable, except that it's owned by the class (scoped to be correct). This makes it easier to avoid clashes between similarly named variables. Like any global variable, there is just one instance of that variable and modifying it is always visible by all.

On the other hand, s is an object specific value. Each object has its own instance of the value. In C++, you must create an instance to have access to that variable. In Ruby, the class definition is itself an instance of the class (in JavaScript, this is called a prototype), therefore you can access s from the class without additional instantiation. The class instance can be modified, but modification of s is going to be specific to each instance (each object of type S). So modifying one will not change the value in another.

A variable prefixed with @ is an instance variable, while one prefixed with @@ is a class variable. Check out the following example; its output is in the comments at the end of the puts lines:

class Test
  @@shared = 1

  def value
    @@shared
  end

  def value=(value)
    @@shared = value
  end
end

class AnotherTest < Test; end

t = Test.new
puts "t.value is #{t.value}" # 1
t.value = 2
puts "t.value is #{t.value}" # 2

x = Test.new
puts "x.value is #{x.value}" # 2

a = AnotherTest.new
puts "a.value is #{a.value}" # 2
a.value = 3
puts "a.value is #{a.value}" # 3
puts "t.value is #{t.value}" # 3
puts "x.value is #{x.value}" # 3

You can see that @@shared is shared between the classes; setting the value in an instance of one changes the value for all other instances of that class and even child classes, where a variable named @shared, with one @, would not be.

[Update]

As Phrogz mentions in the comments, it's a common idiom in Ruby to track class-level data with an instance variable on the class itself. This can be a tricky subject to wrap your mind around, and there is plenty of additional reading on the subject, but think about it as modifying the Class class, but only the instance of the Class class you're working with. An example:

class Polygon
  class << self
    attr_accessor :sides
  end
end

class Triangle < Polygon
  @sides = 3
end

class Rectangle < Polygon
  @sides = 4
end

class Square < Rectangle
end

class Hexagon < Polygon
  @sides = 6
end

puts "Triangle.sides:  #{Triangle.sides.inspect}"  # 3
puts "Rectangle.sides: #{Rectangle.sides.inspect}" # 4
puts "Square.sides:    #{Square.sides.inspect}"    # nil
puts "Hexagon.sides:   #{Hexagon.sides.inspect}"   # 6

I included the Square example (which outputs nil) to demonstrate that this may not behave 100% as you expect; the article I linked above has plenty of additional information on the subject.

Also keep in mind that, as with most data, you should be extremely careful with class variables in a multithreaded environment, as per dmarkow's comment.

built on dmark's answer to get the following, which is useful if you want the equiv of sprintf and hopefully will help someone...

def sprint(object):
    result = ''
    for i in [v for v in dir(object) if not callable(getattr(object, v)) and v[0] != '_']:
        result += '\n%s:' % i + str(getattr(object, i, ''))
    return result

Gift.new.attributes.symbolize_keys

Instance variable is the variable declared inside a class, but outside a method: something like:

class IronMan {

    /** These are all instance variables **/
    public String realName;
    public String[] superPowers;
    public int age;

    /** Getters and setters here **/
}

Now this IronMan Class can be instantiated in another class to use these variables. Something like:

class Avengers {

    public static void main(String[] a) {
        IronMan ironman = new IronMan();
        ironman.realName = "Tony Stark";
        // or
        ironman.setAge(30);
    }

}

This is how we use the instance variables. Shameless plug: This example was pulled from this free e-book here here.

Sessions

In short: the web server issues a unique identifier to each visitor on his first visit. The visitor must bring back that ID for him to be recognised next time around. This identifier also allows the server to properly segregate objects owned by one session against that of another.

Servlet Instantiation

If load-on-startup is false:

If load-on-startup is true:

Once he's on the service mode and on the groove, the same servlet will work on the requests from all other clients.

Why isn't it a good idea to have one instance per client? Think about this: Will you hire one pizza guy for every order that came? Do that and you'd be out of business in no time.

It comes with a small risk though. Remember: this single guy holds all the order information in his pocket: so if you're not cautious about thread safety on servlets, he may end up giving the wrong order to a certain client.

I know this is an old question, but for anyone who have the same issue there is a newer and simpler solution: an "appendTo" option has been introduced in jQuery UI 1.10.0

http://api.jqueryui.com/dialog/#option-appendTo

$("#dialog").dialog({
    appendTo: "form"
    ....
});

Simply set the logo's style to display:hidden and call fadeIn, instead of first calling hide:

$(document).ready(function() {
    $('#logo').fadeIn("normal");
});

<img src="logo.jpg" style="display:none"/>

Don't reinvent the wheel.

ls -m

It does exactly that.

I had the same problem but from IIS in visual studio, I went to project properties -> Web -> and project url change http to https

select * from all_constraints
where owner = '<NAME>'
and constraint_name = 'SYS_C00381400'
/

Like all data dictionary views, this a USER_CONSTRAINTS view if you just want to check your current schema and a DBA_CONSTRAINTS view for administration users.

The construction of the constraint name indicates a system generated constraint name. For instance, if we specify NOT NULL in a table declaration. Or indeed a primary or unique key. For example:

SQL> create table t23 (id number not null primary key)
  2  /

Table created.

SQL> select constraint_name, constraint_type
  2  from user_constraints
  3  where table_name = 'T23'
  4  /

CONSTRAINT_NAME                C
------------------------------ -
SYS_C00935190                  C
SYS_C00935191                  P

SQL>

'C' for check, 'P' for primary.

Generally it's a good idea to give relational constraints an explicit name. For instance, if the database creates an index for the primary key (which it will do if that column is not already indexed) it will use the constraint name oo name the index. You don't want a database full of indexes named like SYS_C00935191.

To be honest most people don't bother naming NOT NULL constraints.

A very good example that I can give you for classcastException in Java is while using "Collection"

List list = new ArrayList();
list.add("Java");
list.add(new Integer(5));

for(Object obj:list) {
    String str = (String)obj;
}

This above code will give you ClassCastException on runtime. Because you are trying to cast Integer to String, that will throw the exception.

svn add --force .

This will add any unversioned file in the current directory and all versioned child directories.

I have JQuery UI 1.8.11 version and this is my working code. You can also customize its height and width depending on your requirements.

$("#divMain").dialog({
    modal:true,
    autoOpen: false,
    maxWidth: 500,
    maxHeight: 300,
    width: 500,
    height: 300,
    title: "Customize Dialog",
        buttons: {
            "SAVE": function () {
                //Add your functionalities here
            },
            "Cancel": function () {
                $(this).dialog("close");
            }
        },
        close: function () {}
});

You can access the namespace's dictionary with vars():

>>> import argparse
>>> args = argparse.Namespace()
>>> args.foo = 1
>>> args.bar = [1,2,3]
>>> d = vars(args)
>>> d
{'foo': 1, 'bar': [1, 2, 3]}

You can modify the dictionary directly if you wish:

>>> d['baz'] = 'store me'
>>> args.baz
'store me'

Yes, it is okay to access the __dict__ attribute. It is a well-defined, tested, and guaranteed behavior.

This may help you in mysql, php.

//your date in any format
$date = $this->input->post('txtCouponExpiry');

$day = (int)substr($date, 3, 2);
$month = (int)substr($date, 0, 2);
$year = (int)substr($date, 7, 4);

$unixTimestamp = mktime(0, 0, 0, $year, $day, $month);

// insert it into database
'date'->$unixTimestamp;

//query for selecting  order by date ASC or DESC
select * from table order_by date asc;

9 years too late to the party, but a different approach to your problem (that nobody has mentioned?):

The statement-body works fine with Func<> but won't work with Expression<Func<>>. IQueryable.Select wants an Expression<>, because they can be translated for Entity Framework - Func<> can not.

So you either use the AsEnumerable and start working with the data in memory (not recommended, if not really neccessary) or you keep working with the IQueryable<> which is recommended. There is something called linq query which makes some things easier:

IQueryable<Obj> result = from o in objects
                         let someLocalVar = o.someVar
                         select new Obj
                         {
                           Var1 = someLocalVar,
                           Var2 = o.var2
                         };

with let you can define a variable and use it in the select (or where,...) - and you keep working with the IQueryable until you really need to execute and get the objects.

Afterwards you can Obj[] myArray = result.ToArray()

This will also work:

c = (count - 1) / 10 + 1;

I published one on github a while back..

https://github.com/davlee1972/xml_to_json

This converter is written in Python and will convert one or more XML files into JSON / JSONL files

It requires a XSD schema file to figure out nested json structures (dictionaries vs lists) and json equivalent data types.

python xml_to_json.py -x PurchaseOrder.xsd PurchaseOrder.xml

INFO - 2018-03-20 11:10:24 - Parsing XML Files..
INFO - 2018-03-20 11:10:24 - Processing 1 files
INFO - 2018-03-20 11:10:24 - Parsing files in the following order:
INFO - 2018-03-20 11:10:24 - ['PurchaseOrder.xml']
DEBUG - 2018-03-20 11:10:24 - Generating schema from PurchaseOrder.xsd
DEBUG - 2018-03-20 11:10:24 - Parsing PurchaseOrder.xml
DEBUG - 2018-03-20 11:10:24 - Writing to file PurchaseOrder.json
DEBUG - 2018-03-20 11:10:24 - Completed PurchaseOrder.xml

I also have a follow up xml to parquet converter that works in a similar fashion

https://github.com/blackrock/xml_to_parquet

i mostly found a easy way to execute the length of array inside a loop just like that

 int array[] = {10, 20, 30, 40};
 int i;
 for (i = 0; i < array[i]; i++) {
    printf("%d\n", array[i]);
 }

If what you are trying to see is whether the server "exists", you can use the following:

function isValidURL(url) {
    var encodedURL = encodeURIComponent(url);
    var isValid = false;

    $.ajax({
      url: "http://query.yahooapis.com/v1/public/yql?q=select%20*%20from%20html%20where%20url%3D%22" + encodedURL + "%22&format=json",
      type: "get",
      async: false,
      dataType: "json",
      success: function(data) {
        isValid = data.query.results != null;
      },
      error: function(){
        isValid = false;
      }
    });

    return isValid;
}

This will return a true/false indication whether the server exists.

If you want response time, a slight modification will do:

function ping(url) {
    var encodedURL = encodeURIComponent(url);
    var startDate = new Date();
    var endDate = null;
    $.ajax({
      url: "http://query.yahooapis.com/v1/public/yql?q=select%20*%20from%20html%20where%20url%3D%22" + encodedURL + "%22&format=json",
      type: "get",
      async: false,
      dataType: "json",
      success: function(data) {
        if (data.query.results != null) {
            endDate = new Date();
        } else {
            endDate = null;
        }
      },
      error: function(){
        endDate = null;
      }
    });

    if (endDate == null) {
        throw "Not responsive...";
    }

    return endDate.getTime() - startDate.getTime();
}

The usage is then trivial:

var isValid = isValidURL("http://example.com");
alert(isValid ? "Valid URL!!!" : "Damn...");

Or:

var responseInMillis = ping("example.com");
alert(responseInMillis);

There are several ways to do this:

$collection = Mage::getModel('...')
            ->getCollection()
            ->setPageSize(20)
            ->setCurPage(1);

Will get first 20 records.

Here is the alternative and maybe more readable way:

$collection = Mage::getModel('...')->getCollection();
$collection->getSelect()->limit(20);

This will call Zend Db limit. You can set offset as second parameter.

You can do what you want if you use an iterator object to go over the elements in your set. You can remove them on the go an it's ok. However removing them while in a for loop (either "standard", of the for each kind) will get you in trouble:

Set<Integer> set = new TreeSet<Integer>();
    set.add(1);
    set.add(2);
    set.add(3);

    //good way:
    Iterator<Integer> iterator = set.iterator();
    while(iterator.hasNext()) {
        Integer setElement = iterator.next();
        if(setElement==2) {
            iterator.remove();
        }
    }

    //bad way:
    for(Integer setElement:set) {
        if(setElement==2) {
            //might work or might throw exception, Java calls it indefined behaviour:
            set.remove(setElement);
        } 
    }

As per @mrgloom's comment, here are more details as to why the "bad" way described above is, well... bad :

Without getting into too much details about how Java implements this, at a high level, we can say that the "bad" way is bad because it is clearly stipulated as such in the Java docs:

https://docs.oracle.com/javase/8/docs/api/java/util/ConcurrentModificationException.html

stipulate, amongst others, that (emphasis mine):

"For example, it is not generally permissible for one thread to modify a Collection while another thread is iterating over it. In general, the results of the iteration are undefined under these circumstances. Some Iterator implementations (including those of all the general purpose collection implementations provided by the JRE) may choose to throw this exception if this behavior is detected" (...)

"Note that this exception does not always indicate that an object has been concurrently modified by a different thread. If a single thread issues a sequence of method invocations that violates the contract of an object, the object may throw this exception. For example, if a thread modifies a collection directly while it is iterating over the collection with a fail-fast iterator, the iterator will throw this exception."

To go more into details: an object that can be used in a forEach loop needs to implement the "java.lang.Iterable" interface (javadoc here). This produces an Iterator (via the "Iterator" method found in this interface), which is instantiated on demand, and will contain internally a reference to the Iterable object from which it was created. However, when an Iterable object is used in a forEach loop, the instance of this iterator is hidden to the user (you cannot access it yourself in any way).

This, coupled with the fact that an Iterator is pretty stateful, i.e. in order to do its magic and have coherent responses for its "next" and "hasNext" methods it needs that the backing object is not changed by something else than the iterator itself while it's iterating, makes it so that it will throw an exception as soon as it detects that something changed in the backing object while it is iterating over it.

Java calls this "fail-fast" iteration: i.e. there are some actions, usually those that modify an Iterable instance (while an Iterator is iterating over it). The "fail" part of the "fail-fast" notion refers to the ability of an Iterator to detect when such "fail" actions happen. The "fast" part of the "fail-fast" (and, which in my opinion should be called "best-effort-fast"), will terminate the iteration via ConcurrentModificationException as soon as it can detect that a "fail" action has happen.

Posting this answer for folks wanting to initialize list with POCOs and also coz this is the first thing that pops up in search but all answers only for list of type string.

You can do this two ways one is directly setting the property by setter assignment or much cleaner by creating a constructor that takes in params and sets the properties.

class MObject {        
        public int Code { get; set; }
        public string Org { get; set; }
    }

List<MObject> theList = new List<MObject> { new MObject{ PASCode = 111, Org="Oracle" }, new MObject{ PASCode = 444, Org="MS"} };

OR by parameterized constructor

class MObject {
        public MObject(int code, string org)
        {
            Code = code;
            Org = org;
        }

        public int Code { get; set; }
        public string Org { get; set; }
    }

List<MObject> theList = new List<MObject> {new MObject( 111, "Oracle" ), new MObject(222,"SAP")};


        

You can wire up your own custom event

$('textarea').bind("enterKey",function(e){
   //do stuff here
});
$('textarea').keyup(function(e){
    if(e.keyCode == 13)
    {
        $(this).trigger("enterKey");
    }
});

http://jsfiddle.net/x7HVQ/

Add this to an htaccess file (and see edit notes added below):

<IfModule mod_php5.c>
   php_value post_max_size 200M
   php_value upload_max_filesize 200M
   php_value memory_limit 300M
   php_value max_execution_time 259200
   php_value max_input_time 259200
   php_value session.gc_maxlifetime 1200
</IfModule>

Additional resources and information:

• https://www.php.net/manual/en/info.configuration.php

• https://www.looklinux.com/how-to-set-php-maximum-execution-time-in-an-htaccess-file/

2021 EDIT:

As PHP and Apache evolve and grow, I think it is important for me to take a moment to mention a few things to consider and possible "gotchas" to consider:

• PHP can be run as a module or as CGI. It is not recommended to run as CGI as it creates a lot of opportunities for attack vectors [Read More]. Running as a module (the safer option) will trigger the settings to be used if the specific module from <IfModule is loaded.
• The answer indicates to write mod_php5.c in the first line. If you are using PHP 7, you would replace that with mod_php7.c.
• Sometimes after you make changes to your .htaccess file, restarting Apache or NGINX will not work. The most common reason for this is you are running PHP-FPM, which runs as a separate process. You need to restart that as well.
• Remember these are settings that are normally defined in your php.ini config file(s). This method is usually only useful in the event your hosting provider does not give you access to change those files. In circumstances where you can edit the PHP configuration, it is recommended that you apply these settings there.
• Finally, it's important to note that not all php.ini settings can be configured via an .htaccess file. A file list of php.ini directives can be found here, and the only ones you can change are the ones in the changeable column with the modes PHP_INI_ALL or PHP_INI_PERDIR.

You can change your second condition to check only the span element:

...and contains(div/span, 'someText')]

If the span isn't always inside another div you can also use

...and contains(.//span, 'someText')]

This searches for the span anywhere inside the div.

when we pass vector by value in a function as an argument,it simply creates the copy of vector and no any effect happens on the vector which is defined in main function when we call that particular function. while when we pass vector by reference whatever is written in that particular function, every action will going to perform on the vector which is defined in main or other function when we call that particular function.

Floating point numbers are represented, at the hardware level, as fractions of binary numbers (base 2). For example, the decimal fraction:

0.125

has the value 1/10 + 2/100 + 5/1000 and, in the same way, the binary fraction:

0.001

has the value 0/2 + 0/4 + 1/8. These two fractions have the same value, the only difference is that the first is a decimal fraction, the second is a binary fraction.

Unfortunately, most decimal fractions cannot have exact representation in binary fractions. Therefore, in general, the floating point numbers you give are only approximated to binary fractions to be stored in the machine.

The problem is easier to approach in base 10. Take for example, the fraction 1/3. You can approximate it to a decimal fraction:

0.3

or better,

0.33

or better,

0.333

etc. No matter how many decimal places you write, the result is never exactly 1/3, but it is an estimate that always comes closer.

Likewise, no matter how many base 2 decimal places you use, the decimal value 0.1 cannot be represented exactly as a binary fraction. In base 2, 1/10 is the following periodic number:

0.0001100110011001100110011001100110011001100110011 ...

Stop at any finite amount of bits, and you'll get an approximation.

For Python, on a typical machine, 53 bits are used for the precision of a float, so the value stored when you enter the decimal 0.1 is the binary fraction.

0.00011001100110011001100110011001100110011001100110011010

which is close, but not exactly equal, to 1/10.

It's easy to forget that the stored value is an approximation of the original decimal fraction, due to the way floats are displayed in the interpreter. Python only displays a decimal approximation of the value stored in binary. If Python were to output the true decimal value of the binary approximation stored for 0.1, it would output:

>>> 0.1
0.1000000000000000055511151231257827021181583404541015625

This is a lot more decimal places than most people would expect, so Python displays a rounded value to improve readability:

>>> 0.1
0.1

It is important to understand that in reality this is an illusion: the stored value is not exactly 1/10, it is simply on the display that the stored value is rounded. This becomes evident as soon as you perform arithmetic operations with these values:

>>> 0.1 + 0.2
0.30000000000000004

This behavior is inherent to the very nature of the machine's floating-point representation: it is not a bug in Python, nor is it a bug in your code. You can observe the same type of behavior in all other languages ??that use hardware support for calculating floating point numbers (although some languages ??do not make the difference visible by default, or not in all display modes).

Another surprise is inherent in this one. For example, if you try to round the value 2.675 to two decimal places, you will get

>>> round (2.675, 2)
2.67

The documentation for the round() primitive indicates that it rounds to the nearest value away from zero. Since the decimal fraction is exactly halfway between 2.67 and 2.68, you should expect to get (a binary approximation of) 2.68. This is not the case, however, because when the decimal fraction 2.675 is converted to a float, it is stored by an approximation whose exact value is :

2.67499999999999982236431605997495353221893310546875

Since the approximation is slightly closer to 2.67 than 2.68, the rounding is down.

If you are in a situation where rounding decimal numbers halfway down matters, you should use the decimal module. By the way, the decimal module also provides a convenient way to "see" the exact value stored for any float.

>>> from decimal import Decimal
>>> Decimal (2.675)
>>> Decimal ('2.67499999999999982236431605997495353221893310546875')

Another consequence of the fact that 0.1 is not exactly stored in 1/10 is that the sum of ten values ??of 0.1 does not give 1.0 either:

>>> sum = 0.0
>>> for i in range (10):
... sum + = 0.1
...>>> sum
0.9999999999999999

The arithmetic of binary floating point numbers holds many such surprises. The problem with "0.1" is explained in detail below, in the section "Representation errors". See The Perils of Floating Point for a more complete list of such surprises.

It is true that there is no simple answer, however do not be overly suspicious of floating virtula numbers! Errors, in Python, in floating-point number operations are due to the underlying hardware, and on most machines are no more than 1 in 2 ** 53 per operation. This is more than necessary for most tasks, but you should keep in mind that these are not decimal operations, and every operation on floating point numbers may suffer from a new error.

Although pathological cases exist, for most common use cases you will get the expected result at the end by simply rounding up to the number of decimal places you want on the display. For fine control over how floats are displayed, see String Formatting Syntax for the formatting specifications of the str.format () method.

This part of the answer explains in detail the example of "0.1" and shows how you can perform an exact analysis of this type of case on your own. We assume that you are familiar with the binary representation of floating point numbers.The term Representation error means that most decimal fractions cannot be represented exactly in binary. This is the main reason why Python (or Perl, C, C ++, Java, Fortran, and many others) usually doesn't display the exact result in decimal:

>>> 0.1 + 0.2
0.30000000000000004

Why ? 1/10 and 2/10 are not representable exactly in binary fractions. However, all machines today (July 2010) follow the IEEE-754 standard for the arithmetic of floating point numbers. and most platforms use an "IEEE-754 double precision" to represent Python floats. Double precision IEEE-754 uses 53 bits of precision, so on reading the computer tries to convert 0.1 to the nearest fraction of the form J / 2 ** N with J an integer of exactly 53 bits. Rewrite :

1/10 ~ = J / (2 ** N)

in :

J ~ = 2 ** N / 10

remembering that J is exactly 53 bits (so> = 2 ** 52 but <2 ** 53), the best possible value for N is 56:

>>> 2 ** 52
4503599627370496
>>> 2 ** 53
9007199254740992
>>> 2 ** 56/10
7205759403792793

So 56 is the only possible value for N which leaves exactly 53 bits for J. The best possible value for J is therefore this quotient, rounded:

>>> q, r = divmod (2 ** 56, 10)
>>> r
6

Since the carry is greater than half of 10, the best approximation is obtained by rounding up:

>>> q + 1
7205759403792794

Therefore the best possible approximation for 1/10 in "IEEE-754 double precision" is this above 2 ** 56, that is:

7205759403792794/72057594037927936

Note that since the rounding was done upward, the result is actually slightly greater than 1/10; if we hadn't rounded up, the quotient would have been slightly less than 1/10. But in no case is it exactly 1/10!

So the computer never "sees" 1/10: what it sees is the exact fraction given above, the best approximation using the double precision floating point numbers from the "" IEEE-754 ":

>>>. 1 * 2 ** 56
7205759403792794.0

If we multiply this fraction by 10 ** 30, we can observe the values ??of its 30 decimal places of strong weight.

>>> 7205759403792794 * 10 ** 30 // 2 ** 56
100000000000000005551115123125L

meaning that the exact value stored in the computer is approximately equal to the decimal value 0.100000000000000005551115123125. In versions prior to Python 2.7 and Python 3.1, Python rounded these values ??to 17 significant decimal places, displaying “0.10000000000000001”. In current versions of Python, the displayed value is the value whose fraction is as short as possible while giving exactly the same representation when converted back to binary, simply displaying “0.1”.

For my txt file works this way:

let myFileURL = NSBundle.mainBundle().URLForResource("listacomuni", withExtension: "txt")!
let myText = try! String(contentsOfURL: myFileURL, encoding: NSISOLatin1StringEncoding)
print(String(myText))

After learning what it is all about, I thought to write a hopefully simpler explanation via analogy:

Summary: What is a hashcode?

• It's a fingerprint. We can use this finger print to identify people of interest.

Read below for more details:

Think of a Hashcode as us trying to To Uniquely Identify Someone

I am a detective, on the look out for a criminal. Let us call him Mr Cruel. (He was a notorious murderer when I was a kid -- he broke into a house kidnapped and murdered a poor girl, dumped her body and he's still out on the loose - but that's a separate matter). Mr Cruel has certain peculiar characteristics that I can use to uniquely identify him amongst a sea of people. We have 25 million people in Australia. One of them is Mr Cruel. How can we find him?

Bad ways of Identifying Mr Cruel

Apparently Mr Cruel has blue eyes. That's not much help because almost half the population in Australia also has blue eyes.

Good ways of Identifying Mr Cruel

What else can i use? I know: I will use a fingerprint!

Advantages:

• It is really really hard for two people to have the same finger print (not impossible, but extremely unlikely).
• Mr Cruel's fingerprint will never change.
• Every single part of Mr Cruel's entire being: his looks, hair colour, personality, eating habits etc must (ideally) be reflected in his fingerprint, such that if he has a brother (who is very similar but not the same) - then both should have different finger prints. I say "should" because we cannot guarantee 100% that two people in this world will have different fingerprints.
• But we can always guarantee that Mr Cruel will always have the same finger print - and that his fingerprint will NEVER change.

The above characteristics generally make for good hash functions.

So what's the deal with 'Collisions'?

So imagine if I get a lead and I find someone matching Mr Cruel's fingerprints. Does this mean I have found Mr Cruel?

........perhaps! I must take a closer look. If i am using SHA256 (a hashing function) and I am looking in a small town with only 5 people - then there is a very good chance I found him! But if I am using MD5 (another famous hashing function) and checking for fingerprints in a town with +2^1000 people, then it is a fairly good possibility that two entirely different people might have the same fingerprint.

So what is the benefit of all this anyways?

The only real benefit of hashcodes is if you want to put something in a hash table - and with hash tables you'd want to find objects quickly - and that's where the hash code comes in. They allow you to find things in hash tables really quickly. It's a hack that massively improves performance, but at a small expense of accuracy.

So let's imagine we have a hash table filled with people - 25 million suspects in Australia. Mr Cruel is somewhere in there..... How can we find him really quickly? We need to sort through them all: to find a potential match, or to otherwise acquit potential suspects. You don't want to consider each person's unique characteristics because that would take too much time. What would you use instead? You'd use a hashcode! A hashcode can tell you if two people are different. Whether Joe Bloggs is NOT Mr Cruel. If the prints don't match then you know it's definitely NOT Mr Cruel. But, if the finger prints do match then depending on the hash function you used, chances are already fairly good you found your man. But it's not 100%. The only way you can be certain is to investigate further: (i) did he/she have an opportunity/motive, (ii) witnesses etc etc.

When you are using computers if two objects have the same hash code value, then you again need to investigate further whether they are truly equal. e.g. You'd have to check whether the objects have e.g. the same height, same weight etc, if the integers are the same, or if the customer_id is a match, and then come to the conclusion whether they are the same. this is typically done perhaps by implementing an IComparer or IEquality interfaces.

Key Summary

So basically a hashcode is a finger print.

1. Two different people/objects can theoretically still have the same fingerprint. Or in other words. If you have two fingerprints that are the same.........then they need not both come from the same person/object.
2. Buuuuuut, the same person/object will always return the same fingerprint.
3. Which means that if two objects return different hash codes then you know for 100% certainty that those objects are different.

It takes a good 3 minutes to get your head around the above. Perhaps read it a few times till it makes sense. I hope this helps someone because it took a lot of grief for me to learn it all!

There are great responses here. I would like to keep it short to memorize the difference between partition & buckets.

You generally partition on a less unique column. And bucketing on most unique column.

Example if you consider World population with country, person name and their bio-metric id as an example. As you can guess, country field would be the less unique column and bio-metric id would be the most unique column. So ideally you would need to partition the table by country and bucket it by bio-metric id.

The question has already been answered, but if you are looking for a shortcut during development, including this at the top of your python script will save you some time but mostly let you forget about actually having to make the conversion.

import os #Used in Testing Script
os.system("pyuic4 -o outputFile.py inpuiFile.ui")

error in the very first line public class StaticDemo {

Any Class A which has access modifier as public must have a separate source file as A.java or A.jav. This is specified in JLS 7.6 section:

If and only if packages are stored in a file system (§7.2), the host system may choose to enforce the restriction that it is a compile-time error if a type is not found in a file under a name composed of the type name plus an extension (such as .java or .jav) if either of the following is true:

• The type is referred to by code in other compilation units of the package in which the type is declared.

• The type is declared public (and therefore is potentially accessible from code in other packages).

However, you may have to remove public access modifier from the Class declaration StaticDemo. Then as StaticDemo class will have no modifier it will become package-private, That is, it will be visible only within its own package.

Check out Controlling Access to Members of a Class

If you need to rotate and fix the image orientation below extension would be useful.

extension UIImage {

    public func imageRotatedByDegrees(degrees: CGFloat) -> UIImage {
        //Calculate the size of the rotated view's containing box for our drawing space
        let rotatedViewBox: UIView = UIView(frame: CGRect(x: 0, y: 0, width: self.size.width, height: self.size.height))
        let t: CGAffineTransform = CGAffineTransform(rotationAngle: degrees * CGFloat.pi / 180)
        rotatedViewBox.transform = t
        let rotatedSize: CGSize = rotatedViewBox.frame.size
        //Create the bitmap context
        UIGraphicsBeginImageContext(rotatedSize)
        let bitmap: CGContext = UIGraphicsGetCurrentContext()!
        //Move the origin to the middle of the image so we will rotate and scale around the center.
        bitmap.translateBy(x: rotatedSize.width / 2, y: rotatedSize.height / 2)
        //Rotate the image context
        bitmap.rotate(by: (degrees * CGFloat.pi / 180))
        //Now, draw the rotated/scaled image into the context
        bitmap.scaleBy(x: 1.0, y: -1.0)
        bitmap.draw(self.cgImage!, in: CGRect(x: -self.size.width / 2, y: -self.size.height / 2, width: self.size.width, height: self.size.height))
        let newImage: UIImage = UIGraphicsGetImageFromCurrentImageContext()!
        UIGraphicsEndImageContext()
        return newImage
    }


    public func fixedOrientation() -> UIImage {
        if imageOrientation == UIImageOrientation.up {
            return self
        }

        var transform: CGAffineTransform = CGAffineTransform.identity

        switch imageOrientation {
        case UIImageOrientation.down, UIImageOrientation.downMirrored:
            transform = transform.translatedBy(x: size.width, y: size.height)
            transform = transform.rotated(by: CGFloat.pi)
            break
        case UIImageOrientation.left, UIImageOrientation.leftMirrored:
            transform = transform.translatedBy(x: size.width, y: 0)
            transform = transform.rotated(by: CGFloat.pi/2)
            break
        case UIImageOrientation.right, UIImageOrientation.rightMirrored:
            transform = transform.translatedBy(x: 0, y: size.height)
            transform = transform.rotated(by: -CGFloat.pi/2)
            break
        case UIImageOrientation.up, UIImageOrientation.upMirrored:
            break
        }

        switch imageOrientation {
        case UIImageOrientation.upMirrored, UIImageOrientation.downMirrored:
            transform.translatedBy(x: size.width, y: 0)
            transform.scaledBy(x: -1, y: 1)
            break
        case UIImageOrientation.leftMirrored, UIImageOrientation.rightMirrored:
            transform.translatedBy(x: size.height, y: 0)
            transform.scaledBy(x: -1, y: 1)
        case UIImageOrientation.up, UIImageOrientation.down, UIImageOrientation.left, UIImageOrientation.right:
            break
        }

        let ctx: CGContext = CGContext(data: nil,
                                       width: Int(size.width),
                                       height: Int(size.height),
                                       bitsPerComponent: self.cgImage!.bitsPerComponent,
                                       bytesPerRow: 0,
                                       space: self.cgImage!.colorSpace!,
                                       bitmapInfo: CGImageAlphaInfo.premultipliedLast.rawValue)!

        ctx.concatenate(transform)

        switch imageOrientation {
        case UIImageOrientation.left, UIImageOrientation.leftMirrored, UIImageOrientation.right, UIImageOrientation.rightMirrored:
            ctx.draw(self.cgImage!, in: CGRect(x: 0, y: 0, width: size.height, height: size.width))
        default:
            ctx.draw(self.cgImage!, in: CGRect(x: 0, y: 0, width: size.width, height: size.height))
            break
        }

        let cgImage: CGImage = ctx.makeImage()!

        return UIImage(cgImage: cgImage)
    }
}

You can do it calling the DataTable.Copy() method, for example:

   DataSet ds = new DataSet();
   System.Data.DataTable dt = new System.Data.DataTable();
   dt = _BOSearchView.DS.Tables[BusLib.TPV.TableName.SearchView].Copy();
   ds.Tables.Add(dt);
   UltGrdSaleExcel.SetDataBinding(ds, dt.TableName, true);

BE AWARE

In HTML/CSS (browser code) the format is #RRGGBBAA with the alpha channel as last two hexadecimal digits.

If you don't want to keep track of moving your fonts around:

# Adding Webfonts to the Asset Pipeline
config.assets.precompile << Proc.new { |path|
  if path =~ /\.(eot|svg|ttf|woff)\z/
    true
  end
}

I just spent several hours on this fershlugginer issue, which cropped up after renewing my development license. To reiterate, everything was working without a hitch, then (thank you Apple!) it all got screwed up and stayed screwed up. None of the Apple official troubleshooting steps (linked to above) or possible resolution steps mentioned here resolved the issue for me.

What finally did it for me was to delete both my development and distribution certificates, revoke them in the provisioning portal, and then let Xcode AUTOMATICALLY refresh/issue them. Nothing else, in any order, was able to get both required certificates into my keychain with the private key correctly attached.

You can set the placeholder using the placeholder attribute in HTML (browser support). The font-style and color can be changed with CSS (although browser support is limited).

input[type=search]::-webkit-input-placeholder { /* Safari, Chrome(, Opera?) */_x000D_
 color:gray;_x000D_
 font-style:italic;_x000D_
}_x000D_
input[type=search]:-moz-placeholder { /* Firefox 18- */_x000D_
 color:gray;_x000D_
 font-style:italic;_x000D_
}_x000D_
input[type=search]::-moz-placeholder { /* Firefox 19+ */_x000D_
 color:gray;_x000D_
 font-style:italic;_x000D_
}_x000D_
input[type=search]:-ms-input-placeholder { /* IE (10+?) */_x000D_
 color:gray;_x000D_
 font-style:italic;_x000D_
}

<input placeholder="Search" type="search" name="q">

You don't say if this is a desktop or web app. I would use the getResourceAsStream() method from an appropriate ClassLoader if it's a desktop or the Context if it's a web app.

You can only use absolute path http://grand-shopping.com/<"some folder"> is not an absolute path.

Either you can use a path inside the application which is vurneable or you can use server specific path like in

windows -> C:/Users/puneet verma/Downloads/
linux -> /opt/Downloads/

This code works for me perfectly:

String numbers = text.substring(Math.max(0, text.length() - 7));

g++ -o foo foo.cpp

g++ --> Driver for cc1plus compiler

-o --> Indicates the output file (foo is the name of output file here. Can be any name)

foo.cpp --> Source file to be compiled

To execute the compiled file simply type

./foo

1. You need to define $hidden and $visible attributes. They'll be set global (that means always return all attributes from $visible array).

2. Using method makeVisible($attribute) and makeHidden($attribute) you can dynamically change hidden and visible attributes. More: Eloquent: Serialization -> Temporarily Modifying Property Visibility

Use this below code to display pop-up box on page load:

$(document).ready(function() { 
  var id = '#dialog';
  var maskHeight = $(document).height();
  var maskWidth = $(window).width();
  $('#mask').css({'width':maskWidth,'height':maskHeight}); 
  $('#mask').fadeIn(500); 
  $('#mask').fadeTo("slow",0.9); 
        var winH = $(window).height();
  var winW = $(window).width();
        $(id).css('top',  winH/2-$(id).height()/2);
  $(id).css('left', winW/2-$(id).width()/2);
     $(id).fadeIn(2000);  
     $('.window .close').click(function (e) {
  e.preventDefault();
  $('#mask').hide();
  $('.window').hide();
     });  
     $('#mask').click(function () {
  $(this).hide();
  $('.window').hide();
 });  

});

<div class="maintext">
<h2> Main text goes here...</h2>
</div>
<div id="boxes">
<div style="top: 50%; left: 50%; display: none;" id="dialog" class="window"> 
<div id="san">
<a href="#" class="close agree"><img src="close-icon.png" width="25" style="float:right; margin-right: -25px; margin-top: -20px;"></a>
<img src="san-web-corner.png" width="450">
</div>
</div>
<div style="width: 2478px; font-size: 32pt; color:white; height: 1202px; display: none; opacity: 0.4;" id="mask"></div>
</div>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.js"></script> 

I refereed this code from here Demo

Just a quick tip for people stumbling across this thread; there is one more place where this setting can also be set, in your project!

Eclipse supports project-specific settings, and some projects will use their own, un-managed tabs/spaces settings, which won't show up anywhere except the current project Properties.

This can be managed through:

• Right-Click current Project in Package Explorer
• Properties » Java Code Style
• Turn off all the project-specific options

This will generally only be an issue if you import someone else's code into your Eclipse.

if use Inline CSS you use

<img src="http://img705.imageshack.us/img705/119/original120x75.png" style="height:100px;width:100px;" alt="705"/>

Otherwise you can use class properties which related with a separate css file (styling your website) as like In CSS File

.imgSize {height:100px;width:100px;}

In HTML File

<img src="http://img705.imageshack.us/img705/119/original120x75.png" style="height:100px;width:100px;" alt="705"/>

I got the same error when I was using Texas Instrument's Code Composer Studio which is built on eclipse. It happened when I changed my Workspace folder to be inside the Google Drive folder. Deleting files from YOUR_WORKSPACE/.metadata/.plugins/org.eclipse.core.resources/ did not work for me.

The following worked for me:

1. Take backup of original Workspace folder
2. Delete the original Workspace (from the Google Drive folder)
3. Start Eclipse (works fine now)
4. Restore the Workspace backup to a non Google Drive folder

However deleting and restoring the Workspace folder is not advisable since it can have other complications. But I was desperate.

I had a similar issue with PyVmomi Client. With Python Version 2.7.9, I have solved this issue with the following line of code:

default_sslContext = ssl._create_unverified_context()
self.client = \
                Client(<vcenterip>, username=<username>, password=<passwd>,
                       sslContext=default_sslContext )

Note that, for this to work, you need Python 2.7.9 atleast.

SELECT Date, TotalAllowance  
FROM Calculation  
WHERE EmployeeId = 1 
  AND Date BETWEEN to_date('2011/02/25','yyyy-mm-dd') 
               AND to_date ('2011/02/27','yyyy-mm-dd');

It's old question but just in case someone bump on this tread...

var input = document.getElementById("your_input");
var file = input.value.split("\\");
var fileName = file[file.length-1];

No need for regex, jQuery....

Here is how you would construct your query for this type of requirement.

select ID,Item_Name,max(Flavor) as Flavor,max(Extra_Cheese) as Extra_Cheese
    from (select i.*,
                    case when o.Option_Number=43 then o.value else null end as Flavor,
                    case when o.Option_Number=44 then o.value else null end as Extra_Cheese
                from Ordered_Item i,Ordered_Options o) a
    group by ID,Item_Name;

You basically "case out" each column using case when, then select the max() for each of those columns using group by for each intended item.

Here it is in Swift.

// Euclid's algorithm for finding the greatest common divisor
func gcd(_ a: Int, _ b: Int) -> Int {
  let r = a % b
  if r != 0 {
    return gcd(b, r)
  } else {
    return b
  }
}

// Returns the least common multiple of two numbers.
func lcm(_ m: Int, _ n: Int) -> Int {
  return m / gcd(m, n) * n
}

// Returns the least common multiple of multiple numbers.
func lcmm(_ numbers: [Int]) -> Int {
  return numbers.reduce(1) { lcm($0, $1) }
}

Imho, it is used to generate same random course result when you use random.seed(samedigit) again.

In [47]: random.randint(7,10)

Out[47]: 9


In [48]: random.randint(7,10)

Out[48]: 9


In [49]: random.randint(7,10)

Out[49]: 7


In [50]: random.randint(7,10)

Out[50]: 10


In [51]: random.seed(5)


In [52]: random.randint(7,10)

Out[52]: 9


In [53]: random.seed(5)


In [54]: random.randint(7,10)

Out[54]: 9

You can just try to establish a TCP connection to a remote host:

public boolean hostAvailable(String host, int port) {
  try (Socket socket = new Socket()) {
    socket.connect(new InetSocketAddress(host, port), 2000);
    return true;
  } catch (IOException e) {
    // Either we have a timeout or unreachable host or failed DNS lookup
    System.out.println(e);
    return false;
  }
}

Then:

boolean online = hostAvailable("www.google.com", 80);

And to iterate on the files of a directory:

@echo off 
setlocal enableDelayedExpansion 

set MYDIR=C:\something
for /F %%x in ('dir /B/D %MYDIR%') do (
  set FILENAME=%MYDIR%\%%x\log\IL_ERROR.log
  echo ===========================  Search in !FILENAME! ===========================
  c:\utils\grep motiv !FILENAME!
)

You must use "enableDelayedExpansion" and !FILENAME! instead of $FILENAME$. In the second case, DOS will interpret the variable only once (before it enters the loop) and not each time the program loops.

import httr package

library(httr)

Get the url

url <- "http://www.omdbapi.com/?apikey=72bc447a&t=Annie+Hall&y=&plot=short&r=json"
resp <- GET(url)

Print content of resp as text

content(resp, as = "text")

Print content of resp

content(resp)

Use content() to get the content of resp, but this time do not specify a second argument. R figures out automatically that you're dealing with a JSON, and converts the JSON to a named R list.

Is above javascript code the one you're using in your web application ? If so - i would like to point few errors in it: firstly - it has an additional '{' sign in definition of 'success' callback function secondly - it has no ')' sign after definition of ajax callback. Valid code should look like:

$.ajax({
        type:'POST',
        data: 'args',
        url: '@Url.Action("PostBack")',
        success: function (data, textStatus, jqXHR) {
                alert(data.message);
            }
    });

try using above code - it gave me 'Yay' alert on all 3 IE versions ( 7,8,9 ).

Git will automatically detect the move/rename if your modification is not too severe. Just git add the new file, and git rm the old file. git status will then show whether it has detected the rename.

additionally, for moves around directories, you may need to:

1. cd to the top of that directory structure.
2. Run git add -A .
3. Run git status to verify that the "new file" is now a "renamed" file

If git status still shows "new file" and not "renamed" you need to follow Hank Gay’s advice and do the move and modify in two separate commits.

perhaps this is what you're looking for: https://github.com/android/platform_frameworks_base/blob/master/core/res/res/values/colors.xml

In C#, if you can use an ArrayList, you can use the Contains method, which returns a boolean:

if MyArrayList.Contains("One")

If you want something like the python3 print function but to a string:

def sprint(*args, **kwargs):
    sio = io.StringIO()
    print(*args, **kwargs, file=sio)
    return sio.getvalue()

>>> x = sprint('abc', 10, ['one', 'two'], {'a': 1, 'b': 2}, {1, 2, 3})
>>> x
"abc 10 ['one', 'two'] {'a': 1, 'b': 2} {1, 2, 3}\n"

or without the '\n' at the end:

def sprint(*args, end='', **kwargs):
    sio = io.StringIO()
    print(*args, **kwargs, end=end, file=sio)
    return sio.getvalue()

>>> x = sprint('abc', 10, ['one', 'two'], {'a': 1, 'b': 2}, {1, 2, 3})
>>> x
"abc 10 ['one', 'two'] {'a': 1, 'b': 2} {1, 2, 3}"

Yes, it's "not equal".

If the file is small, you can read the whole data once:

File file = new File("a.txt");
FileInputStream fis = new FileInputStream(file);
byte[] data = new byte[(int) file.length()];
fis.read(data);
fis.close();

String str = new String(data, "UTF-8");

2 more solutions I had luck with when neither tab close + reopening the page in another tab nor closing all tabs in Chrome (and the browser) then restarting it didn't work:

1) I fixed it on my machine by closing the tab, force-closing Chrome, & restarting the browser without restoring tabs (Note: on a computer running CentOS Linux).

2) My boss (also on CentOS) had the same issue (alerts are a big part of my company's Javascript debugging process for numerous reasons e.g. legacy), but my 1st method didn't work for him. However, I managed to fix it for him with the following process:

• a) Make an empty text file called FixChrome.sh, and paste in the following bash script:

  #! /bin/bash
  cd ~/.config/google-chrome/Default     //adjust for your Chrome install location
  rm Preferences
  rm 'Current Session'
  rm 'Current Tabs'
  rm 'Last Session'
  rm 'Last Tabs'
  

• b) close Chrome, then open Terminal and run the script (bash FixChrome.sh).

It worked for him. Downside is that you lose all tabs from your current & previous session, but it's worth it if this matters to you.

staticmethod objects apparently have a __func__ attribute storing the original raw function (makes sense that they had to). So this will work:

class Klass(object):

    @staticmethod  # use as decorator
    def stat_func():
        return 42

    _ANS = stat_func.__func__()  # call the staticmethod

    def method(self):
        ret = Klass.stat_func()
        return ret

As an aside, though I suspected that a staticmethod object had some sort of attribute storing the original function, I had no idea of the specifics. In the spirit of teaching someone to fish rather than giving them a fish, this is what I did to investigate and find that out (a C&P from my Python session):

>>> class Foo(object):
...     @staticmethod
...     def foo():
...         return 3
...     global z
...     z = foo

>>> z
<staticmethod object at 0x0000000002E40558>
>>> Foo.foo
<function foo at 0x0000000002E3CBA8>
>>> dir(z)
['__class__', '__delattr__', '__doc__', '__format__', '__func__', '__get__', '__getattribute__', '__hash__', '__init__', '__new__', '__reduce__', '__reduce_ex__', '__repr__', '__setattr__', '__sizeof__', '__str__', '__subclasshook__']
>>> z.__func__
<function foo at 0x0000000002E3CBA8>

Similar sorts of digging in an interactive session (dir is very helpful) can often solve these sorts of question very quickly.

Here is an example from my HOW TO Matlab page:

close all; clear all;

img   = imread('lena.tif','tif');
imagesc(img)
img   = fftshift(img(:,:,2));
F     = fft2(img);

figure;

imagesc(100*log(1+abs(fftshift(F)))); colormap(gray); 
title('magnitude spectrum');

figure;
imagesc(angle(F));  colormap(gray);
title('phase spectrum');

This gives the magnitude spectrum and phase spectrum of the image. I used a color image, but you can easily adjust it to use gray image as well.

ps. I just noticed that on Matlab 2012a the above image is no longer included. So, just replace the first line above with say

img = imread('ngc6543a.jpg');

and it will work. I used an older version of Matlab to make the above example and just copied it here.

On the scaling factor

When we plot the 2D Fourier transform magnitude, we need to scale the pixel values using log transform to expand the range of the dark pixels into the bright region so we can better see the transform. We use a c value in the equation

s = c log(1+r) 

There is no known way to pre detrmine this scale that I know. Just need to try different values to get on you like. I used 100 in the above example.

There are two sample functions provided by the Firebase team that demonstrate the use of CORS:

• Time server with date formatting
• HTTPS endpoint requiring Authentication

The second sample uses a different way of working with cors than you're currently using.

Consider importing like this, as shown in the samples:

const cors = require('cors')({origin: true});

And the general form of your function will be like this:

exports.fn = functions.https.onRequest((req, res) => {
    cors(req, res, () => {
        // your function body here - use the provided req and res from cors
    })
});

def bubble_sort(l):
    exchanged = True
    iteration = 0
    n = len(l)

    while(exchanged):
        iteration += 1
        exchanged = False

        # Move the largest element to the end of the list
        for i in range(n-1):
            if l[i] > l[i+1]:
                exchanged = True
                l[i], l[i+1] = l[i+1], l[i]
        n -= 1   # Largest element already towards the end

    print 'Iterations: %s' %(iteration)
    return l

If you have used CHECK CONSTRAINT on table for string field length

e.g: to check username length >= 8

use:

CHECK (CHAR_LENGTH(username)>=8)

instead of

CHECK (username>=8)

fix the check constraint if any have wrong datatype comparison

You may also use PSCredential.GetNetworkCredential() :

$SecurePassword = Get-Content C:\Users\tmarsh\Documents\securePassword.txt | ConvertTo-SecureString
$UnsecurePassword = (New-Object PSCredential "user",$SecurePassword).GetNetworkCredential().Password

Ok, the question seems to have been answered fairly well, the UNICODE overload should take a wide character array as its second parameter. So if the command line parameter is "Hello" that would probably end up as "H\0e\0l\0l\0o\0\0\0" and your program would only print the 'H' before it sees what it thinks is a null terminator.

So now you may wonder why it even compiles and links.

Well it compiles because you are allowed to define an overload to a function.

Linking is a slightly more complex issue. In C, there is no decorated symbol information so it just finds a function called main. The argc and argv are probably always there as call-stack parameters just in case even if your function is defined with that signature, even if your function happens to ignore them.

Even though C++ does have decorated symbols, it almost certainly uses C-linkage for main, rather than a clever linker that looks for each one in turn. So it found your wmain and put the parameters onto the call-stack in case it is the int wmain(int, wchar_t*[]) version.

Use SharedPreferences, http://developer.android.com/reference/android/content/SharedPreferences.html

Here's a sample: http://developer.android.com/guide/topics/data/data-storage.html#pref

If the data structure is more complex or the data is large, use an Sqlite database; but for small amount of data and with a very simple data structure, I'd say, SharedPrefs will do and a DB might be overhead.

Try data.table's := operator :

DT = as.data.table(df)
DT[b==0, est := (a-5)/2.533]

It's fast and short. See these linked questions for more information on := :

Why has data.table defined :=

When should I use the := operator in data.table

How do you remove columns from a data.frame

R self reference

The method version on ionic object returns the current version in string format.

String string="this is a text";
editText.setText(string)

I have found String to be a useful Indirect Subclass of CharSequence

http://developer.android.com/reference/android/widget/TextView.html find setText(CharSequence text)

http://developer.android.com/reference/java/lang/CharSequence.html

Can't comment on the answer given by @Paul Grime yet, anyway I've submitted on his github project the fix for the flicker problem....

I'll post the fix here, maybe someone needs it. You just need to add two lines of code. The first one below the anim.setAnimationListener call:

anim.setFillAfter(true);

And the second one after app.layout() call:

app.clearAnimation();

Hope this helps :)

And for now, here is https://github.com/google/go-cmp which

is intended to be a more powerful and safer alternative to reflect.DeepEqual for comparing whether two values are semantically equal.

package main

import (
    "fmt"

    "github.com/google/go-cmp/cmp"
)

func main() {
    a := []byte{1, 2, 3}
    b := []byte{1, 2, 3}

    fmt.Println(cmp.Equal(a, b)) // true
}

The top answer here seems to be an OS dependent answer; for a more portable solution you can write up a quick sleep function using the ctime header file (although this may be a poor implementation on my part).

#include <iostream>
#include <ctime>

using namespace std;

void sleep(float seconds){
    clock_t startClock = clock();
    float secondsAhead = seconds * CLOCKS_PER_SEC;
    // do nothing until the elapsed time has passed.
    while(clock() < startClock+secondsAhead);
    return;
}
int main(){

    cout << "Next string coming up in one second!" << endl;
    sleep(1.0);
    cout << "Hey, what did I miss?" << endl;

    return 0;
}

Try this:

function funcName() {
    alert("test");
}

var run = setInterval(funcName, 10000)

Starting with Node.js 11, the url.parse and other methods of the Legacy URL API were deprecated (only in the documentation, at first) in favour of the standardized WHATWG URL API. The new API does not offer parsing the query string into an object. That can be achieved using tthe querystring.parse method:

// Load modules to create an http server, parse a URL and parse a URL query.
const http = require('http');
const { URL } = require('url');
const { parse: parseQuery } = require('querystring');

// Provide the origin for relative URLs sent to Node.js requests.
const serverOrigin = 'http://localhost:8000';

// Configure our HTTP server to respond to all requests with a greeting.
const server = http.createServer((request, response) => {
  // Parse the request URL. Relative URLs require an origin explicitly.
  const url = new URL(request.url, serverOrigin);
  // Parse the URL query. The leading '?' has to be removed before this.
  const query = parseQuery(url.search.substr(1));
  response.writeHead(200, { 'Content-Type': 'text/plain' });
  response.end(`Hello, ${query.name}!\n`);
});

// Listen on port 8000, IP defaults to 127.0.0.1.
server.listen(8000);

// Print a friendly message on the terminal.
console.log(`Server running at ${serverOrigin}/`);

If you run the script above, you can test the server response like this, for example:

curl -q http://localhost:8000/status?name=ryan
Hello, ryan!

You can also run docker build with -f option

docker build -t ubuntu-test:latest -f Dockerfile.custom .

You can load the text file into a textfile Hive table and then insert the data from this table into your sequencefile.

Start with a tab delimited file:

% cat /tmp/input.txt
a       b
a2      b2

create a sequence file

hive> create table test_sq(k string, v string) stored as sequencefile;

try to load; as expected, this will fail:

hive> load data local inpath '/tmp/input.txt' into table test_sq;

But with this table:

hive> create table test_t(k string, v string) row format delimited fields terminated by '\t' stored as textfile;

The load works just fine:

hive> load data local inpath '/tmp/input.txt' into table test_t;
OK
hive> select * from test_t;
OK
a       b
a2      b2

Now load into the sequence table from the text table:

insert into table test_sq select * from test_t;

Can also do load/insert with overwrite to replace all.

I think you can use SeriesGroupBy.nunique:

print (df.groupby('param')['group'].nunique())
param
a    2
b    1
Name: group, dtype: int64

Another solution with unique, then create new df by DataFrame.from_records, reshape to Series by stack and last value_counts:

a = df[df.param.notnull()].groupby('group')['param'].unique()
print (pd.DataFrame.from_records(a.values.tolist()).stack().value_counts())
a    2
b    1
dtype: int64

It worked for me. in MVC 5

in ~\Global.asax

void Application_Error(object sender, EventArgs e)
{
    FTools.LogException();
    Response.Redirect("/Error");
}

in ~\Controllers Create ErrorController.cs

using System.Web.Mvc;

namespace MVC_WebApp.Controllers
{
    public class ErrorController : Controller
    {
        // GET: Error
        public ActionResult Index()
        {
            return View("Error");
        }
    }
}

in ~\Models Create FunctionTools.cs

using System;
using System.Web;

namespace MVC_WebApp.Models
{
    public static class FTools
    {
        private static string _error;
        private static bool _isError;

        public static string GetLastError
        {
            get
            {
                string cashe = _error;
                HttpContext.Current.Server.ClearError();
                _error = null;
                _isError = false;
                return cashe;
            }
        }
        public static bool ThereIsError => _isError;

        public static void LogException()
        {
            Exception exc = HttpContext.Current.Server.GetLastError();
            if (exc == null) return;
            string errLog = "";
            errLog += "**********" + DateTime.Now + "**********\n";
            if (exc.InnerException != null)
            {
                errLog += "Inner Exception Type: ";
                errLog += exc.InnerException.GetType() + "\n";
                errLog += "Inner Exception: ";
                errLog += exc.InnerException.Message + "\n";
                errLog += "Inner Source: ";
                errLog += exc.InnerException.Source + "\n";
                if (exc.InnerException.StackTrace != null)
                {
                    errLog += "\nInner Stack Trace: " + "\n";
                    errLog += exc.InnerException.StackTrace + "\n";
                }
            }
            errLog += "Exception Type: ";
            errLog += exc.GetType().ToString() + "\n";
            errLog += "Exception: " + exc.Message + "\n";
            errLog += "\nStack Trace: " + "\n";
            if (exc.StackTrace != null)
            {
                errLog += exc.StackTrace + "\n";
            }
            _error = errLog;
            _isError = true;
        }
    }
}

in ~\Views Create Folder Error and in ~\Views\Error Create Error.cshtml

@using MVC_WebApp.Models
@{
    ViewBag.Title = "Error";
    if (FTools.ThereIsError == false)
    {
        if (Server.GetLastError() != null)
        {
            FTools.LogException();
        }
    }
    if (FTools.ThereIsError == false)
    {
        <br />
        <h1>No Problem!</h1>
    }
    else
    {
        string log = FTools.GetLastError;
        <div>@Html.Raw(log.Replace("\n", "<br />"))</div>
    }
}

If you enter this address localhost/Error

And if an error occurs

As can be instead of displaying errors, variable 'log' to be stored in the database

Source: Microsoft ASP.Net

Check your Entity class. Use String instead of Long and float instead of double .

Here's a tip: are you re-using the file name, or planning to do something that requires the deletion immediately?

No?

You can get VBA to fire the command DEL "C:\TEMP\scratchpad.txt" /F from the command prompt asynchronously using VBA.Shell:

Shell "DEL " & chr(34) & strPath & chr(34) & " /F ", vbHide

Note the double-quotes (ASCII character 34) around the filename: I'm assuming that you've got a network path, or a long file name containing spaces.

If it's a big file, or it's on a slow network connection, fire-and-forget is the way to go. Of course, you never get to see if this worked or not; but you resume your VBA immediately, and there are times when this is better than waiting for the network.

It's better to not use NSIndexPath (empty table), nor assume that top point is CGPointZero (content insets), that's what I use -

[tableView setContentOffset:CGPointMake(0.0f, -tableView.contentInset.top) animated:YES];

Hope this helps.

If you don't have a company, leave your name, it doesn't matter as long as both bundle id in info.plist file and the one you've submitted in iTunes Connect match.

In Bundle ID Suffix you should write full name of bundle ID.

Example:

Bundle ID suffix = thebestapp (NOT CORRECT!!!!)

Bundle ID suffix = com.awesomeapps.thebestapp (CORRECT!!)

The reason for this is explained in the Developer Portal:

The App ID string contains two parts separated by a period (.) — an App ID Prefix (your Team ID by default, e.g. ABCDE12345), and an App ID Suffix (a Bundle ID search string, e.g. com.mycompany.appname). [emphasis added]

So in this case the suffix is the full string com.awesomeapps.thebestapp.

If you wish to use jQuery CDN other than Google hosted jQuery library, you might consider using this and ensures uses the latest version of jQuery:

<script src="http://code.jquery.com/jquery-latest.min.js" type="text/javascript"></script>

Try:

name = "^aH^ai"
name = name:gsub("%^a", "")

See also: http://lua-users.org/wiki/StringLibraryTutorial

The easiest way is to use a for loop template tag.

Given the view:

def MyView(request):
    ...
    query_results = YourModel.objects.all()
    ...
    #return a response to your template and add query_results to the context

You can add a snippet like this your template...

<table>
    <tr>
        <th>Field 1</th>
        ...
        <th>Field N</th>
    </tr>
    {% for item in query_results %}
    <tr> 
        <td>{{ item.field1 }}</td>
        ...
        <td>{{ item.fieldN }}</td>
    </tr>
    {% endfor %}
</table>

This is all covered in Part 3 of the Django tutorial. And here's Part 1 if you need to start there.

While I would have gone with Piotr's answer (because it's all in one line), I was surprised that your sample is closer to your solution than you think. From what you have, you simply assign the model value before you use the Html helper method.

@{Model.RequiredProperty = "default";}
@Html.HiddenFor(model => model.RequiredProperty)

You should not add to your list using c inside the loop, because that can result in very very slow code. Basically when you do c(l, new_element), the whole contents of the list are copied. Instead of that, you need to access the elements of the list by index. If you know how long your list is going to be, it's best to initialise it to this size using l <- vector("list", N). If you don't you can initialise it to have length equal to some large number (e.g if you have an upper bound on the number of iterations) and then just pick the non-NULL elements after the loop has finished. Anyway, the basic point is that you should have an index to keep track of the list element and add using that eg

i <- 1
while(...) {
    l[[i]] <- new_element
    i <- i + 1
}

For more info have a look at Patrick Burns' The R Inferno (Chapter 2).

I always prefer to use the example mentioned in Konva JS: Image Events to load images.

1. You need to have a list of image URLs as object or array, for example:

   var sources = { lion: '/assets/lion.png', monkey: '/assets/monkey.png' };

2. Define the Function definition, where it receives list of image URLs and a callback function in its arguments list, so when it finishes loading image you can start excution on your web page:

    function loadImages(sources, callback) {_x000D_
                var images = {};_x000D_
                var loadedImages = 0;_x000D_
                var numImages = 0;_x000D_
                for (var src in sources) {_x000D_
                    numImages++;_x000D_
                }_x000D_
                for (var src in sources) {_x000D_
                    images[src] = new Image();_x000D_
                    images[src].onload = function () {_x000D_
                        if (++loadedImages >= numImages) {_x000D_
                            callback(images);_x000D_
                        }_x000D_
                    };_x000D_
                    images[src].src = sources[src];_x000D_
                }_x000D_
            }

3. Lastly, you need to call the function. You can call it for example from jQuery's Document Ready

$(document).ready(function (){ loadImages(sources, buildStage); });

below will work with any previously pushed revision, not only HEAD

for abbreviated revision hash:

git log -1 --pretty=format:%h

for long revision hash:

git log -1 --pretty=format:%H

You need access to the object.... you can't simply ask the form class....

eg...

you would of done some thing like

Form1.txtLog.Text = "blah"

instead of

Form1 blah = new Form1();
blah.txtLog.Text = "hello"

Try this regex:

/^[a-z\d\-_\s]+$/i

I have reformatted your slow sql query with www.prettysql.net

SELECT *
FROM some_table
WHERE
 relevant_field in
 (
  SELECT relevant_field
  FROM some_table
  GROUP BY relevant_field
  HAVING COUNT ( * ) > 1
 );

When using a table in both the query and the subquery, you should always alias both, like this:

SELECT *
FROM some_table as t1
WHERE
 t1.relevant_field in
 (
  SELECT t2.relevant_field
  FROM some_table as t2
  GROUP BY t2.relevant_field
  HAVING COUNT ( t2.relevant_field ) > 1
 );

Does that help?

If you want the list of all database sizes sorted, you can use :

SELECT * 
FROM   (SELECT table_schema AS `DB Name`, 
           ROUND(SUM(data_length + index_length) / 1024 / 1024, 1) AS `DB Size in MB`
        FROM   information_schema.tables 
        GROUP  BY `DB Name`) AS tmp_table 
ORDER  BY `DB Size in MB` DESC; 

In VS 2019, just do FETCH Do not pull code.

This is what I did. Added below in .gitconfig file so that I can use Beyond Compare

File location: C:\Users\[username]\.gitconfig

Added below

[diff]
    tool = bc
[difftool "bc"]
    path = c:/Program Files/Beyond Compare 4/bcomp.exe

Open command prompt and go to working directory. I gave below to compare local DEV branch to remote DEV branch

git difftool dev origin/dev --dir-diff

This will open Beyond Compare and open directories which have files that differ. If no changes Beyond Compare will not launch.

None of the above answers fixed this issue for me. I did it as following (Laravel with Ubuntu server):

<?php
     $footerFile = '/var/www/website/main/resources/views/emails/elements/emailfooter.blade.php';
     include($footerFile);
?>

My Solution to this problem is

<li class="@(Context.Request.Path.Value.ToLower().Contains("about") ? "active " : "" ) nav-item">
                <a class="nav-link" asp-area="" asp-controller="Home" asp-action="About">About</a>
            </li>

A better way may be adding an Html extension method to return the current path to be compared with link

Please note!!! You must use the following format when instantiating PHPMailer!

$mail = new PHPMailer(true);

If you don't exceptions are ignored and the only thing you'll get is an echo from the routine! I know this is well after this was created but hopefully it will help someone.

Don't add the bcc header.

See this: http://mail.python.org/pipermail/email-sig/2004-September/000151.html

And this: """Notice that the second argument to sendmail(), the recipients, is passed as a list. You can include any number of addresses in the list to have the message delivered to each of them in turn. Since the envelope information is separate from the message headers, you can even BCC someone by including them in the method argument but not in the message header.""" from http://pymotw.com/2/smtplib

toaddr = '[email protected]'
cc = ['[email protected]','[email protected]']
bcc = ['[email protected]']
fromaddr = '[email protected]'
message_subject = "disturbance in sector 7"
message_text = "Three are dead in an attack in the sewers below sector 7."
message = "From: %s\r\n" % fromaddr
    + "To: %s\r\n" % toaddr
    + "CC: %s\r\n" % ",".join(cc)
    # don't add this, otherwise "to and cc" receivers will know who are the bcc receivers
    # + "BCC: %s\r\n" % ",".join(bcc)
    + "Subject: %s\r\n" % message_subject
    + "\r\n" 
    + message_text
toaddrs = [toaddr] + cc + bcc
server = smtplib.SMTP('smtp.sunnydale.k12.ca.us')
server.set_debuglevel(1)
server.sendmail(fromaddr, toaddrs, message)
server.quit()

Here is a friendly piece of advice. Use something like Chrome Developer Tools or Firebug for Firefox to inspect your Ajax calls and results.

You may also want to invest some time in understanding a helper library like Underscore, which complements jQuery and gives you 60+ useful functions for manipulating data objects with JavaScript.

You can use:

 a.delete(a[0])   
 a.delete_at 0

Both can work

unset($array[$index]);

input[type='text'], input[type='password']
{
   // my css
}

That is the correct way to do it. Sadly CSS is not a programming language.

Span does not have 'change' event by default. But you can add this event manually.

Listen to the change event of span.

$("#span1").on('change',function(){
     //Do calculation and change value of other span2,span3 here
     $("#span2").text('calculated value');
});

And wherever you change the text in span1. Trigger the change event manually.

$("#span1").text('test').trigger('change'); 

This should work:

if (!string.IsNullOrWhiteSpace(dateTimeEnd))
    eventCustom.DateTimeEnd = DateTime.Parse(dateTimeEnd);
else
    eventCustom.DateTimeEnd = null;

Note that this will throw an exception if the string is not in the correct format.

Well, I really don't know why the color assigned to border does not work. But you can control the border color using other border properties of the textfield. They are:

1. disabledBorder: Is activated when enabled is set to false
2. enabledBorder: Is activated when enabled is set to true (by default enabled property of TextField is true)
3. errorBorder: Is activated when there is some error (i.e. a failed validate)
4. focusedBorder: Is activated when we click/focus on the TextField.
5. focusedErrorBorder: Is activated when there is error and we are currently focused on that TextField.

A code snippet is given below:

TextField(
 enabled: false, // to trigger disabledBorder
 decoration: InputDecoration(
   filled: true,
   fillColor: Color(0xFFF2F2F2),
   focusedBorder: OutlineInputBorder(
     borderRadius: BorderRadius.all(Radius.circular(4)),
     borderSide: BorderSide(width: 1,color: Colors.red),
   ),
   disabledBorder: OutlineInputBorder(
     borderRadius: BorderRadius.all(Radius.circular(4)),
     borderSide: BorderSide(width: 1,color: Colors.orange),
   ),
   enabledBorder: OutlineInputBorder(
     borderRadius: BorderRadius.all(Radius.circular(4)),
     borderSide: BorderSide(width: 1,color: Colors.green),
   ),
   border: OutlineInputBorder(
     borderRadius: BorderRadius.all(Radius.circular(4)),
     borderSide: BorderSide(width: 1,)
   ),
   errorBorder: OutlineInputBorder(
     borderRadius: BorderRadius.all(Radius.circular(4)),
     borderSide: BorderSide(width: 1,color: Colors.black)
   ),
   focusedErrorBorder: OutlineInputBorder(
     borderRadius: BorderRadius.all(Radius.circular(4)),
     borderSide: BorderSide(width: 1,color: Colors.yellowAccent)
   ),
   hintText: "HintText",
   hintStyle: TextStyle(fontSize: 16,color: Color(0xFFB3B1B1)),
   errorText: snapshot.error,
 ),
 controller: _passwordController,
 onChanged: _authenticationFormBloc.onPasswordChanged,
                            obscureText: false,
),

disabledBorder:

enabledBorder:

focusedBorder:

errorBorder:

errorFocusedBorder:

Hope it helps you.

Use a rectangle to surround each player and enemy, the height and width of the rectangles should correspond to the object you're surrounding, imagine it being in a box only big enough to fit it.

Now, you move these rectangles the same as you do the objects, so they have a 'bounding box'

I'm not sure if Java has this, but it might have a method on the rectangle object called .intersects() so you'd do if(rectangle1.intersectS(rectangle2) to check to see if an object has collided with another.

Otherwise you can get the x and y co-ordinates of the boxes and using the height/width of them detect whether they've intersected yourself.

Anyway, you can use that to either do an event on intersection (make one explode, or whatever) or prevent the movement from being drawn. (revert to previous co-ordinates)

edit: here we go

boolean

intersects(Rectangle r) Determines whether or not this Rectangle and the specified Rectangle intersect.

So I would do (and don't paste this code, it most likely won't work, not done java for a long time and I didn't do graphics when I did use it.)

Rectangle rect1 = new Rectangle(player.x, player.y, player.width, player.height);

Rectangle rect2 = new Rectangle(enemy.x, enemy.y, enemy.width, enemy.height);

//detects when the two rectangles hit
if(rect1.intersects(rect2))
{

System.out.println("game over, g");
}

obviously you'd need to fit that in somewhere.

Your footer container is constricting the width of the inner element with an explicit width on itself, which sees the text clipped at the end and wrapped onto a new line, so change that:

div#fv2-footer-container {
  width: 1090px;
  ...

exit(X), where X is a number (according to the doc) should work. But it is not recommended by Apple and won't be accepted by the AppStore. Why? Because of these guidelines (one of my app got rejected):

We found that your app includes a UI control for quitting the app. This is not in compliance with the iOS Human Interface Guidelines, as required by the App Store Review Guidelines.

Please refer to the attached screenshot/s for reference.

The iOS Human Interface Guidelines specify,

"Always Be Prepared to Stop iOS applications stop when people press the Home button to open a different application or use a device feature, such as the phone. In particular, people don’t tap an application close button or select Quit from a menu. To provide a good stopping experience, an iOS application should:

Save user data as soon as possible and as often as reasonable because an exit or terminate notification can arrive at any time.

Save the current state when stopping, at the finest level of detail possible so that people don’t lose their context when they start the application again. For example, if your app displays scrolling data, save the current scroll position."

> It would be appropriate to remove any mechanisms for quitting your app.

Plus, if you try to hide that function, it would be understood by the user as a crash.

you have to cast in to array

Arrays.asList((Object[]) array)

Use the S3FileSystem.rm function in s3fs.

You can delete a single file or several at once:

import s3fs
file_system = s3fs.S3FileSystem()

file_system.rm('s3://my-bucket/foo.txt')  # single file

files = ['s3://my-bucket/bar.txt', 's3://my-bucket/baz.txt']
file_system.rm(files)  # several files

That should be considered a very bad programming practice to call PHP code from a database trigger. If you will explain the task you are trying to solve using such "mad" tricks, we might provide a satisfying solution.

ADDED 19.03.2014:

I should have added some reasoning earlier, but only found time to do this now. Thanks to @cmc for an important remark. So, PHP triggers add the following complexities to your application:

• Adds a certain degree of security problems to the application (external PHP script calls, permission setup, probably SELinux setup etc) as @Johan says.

• Adds additional level of complexity to your application (to understand how database works you now need to know both SQL and PHP, not only SQL) and you will have to debug PHP also, not only SQL.

• Adds additional point of failure to your application (PHP misconfiguration for example), which needs to be diagnosied also ( I think trigger needs to hold some debug code which will log somwewhere all insuccessful PHP interpreter calls and their reasons).

• Adds additional point of performance analysis. Each PHP call is expensive, since you need to start interpreter, compile script to bytecode, execute it etc. So each query involving this trigger will execute slower. And sometimes it will be difficult to isolate query performance problems since EXPLAIN doesn't tell you anything about query being slower because of trigger routine performance. And I'm not sure how trigger time is dumped into slow query log.

• Adds some problems to application testing. SQL can be tested pretty easily. But to test SQL + PHP triggers, you will have to apply some skill.

Every time you used the mysql console, the version is shown.

 mysql -u user

Successful console login shows the following which includes the mysql server version.

Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 1432
Server version: 5.5.9-log Source distribution

Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql>

You can also check the mysql server version directly by executing the following command:

mysql --version

You may also check the version information from the mysql console itself using the version variables:

mysql> SHOW VARIABLES LIKE "%version%";

Output will be something like this:

+-------------------------+---------------------+
| Variable_name           | Value               |
+-------------------------+---------------------+
| innodb_version          | 1.1.5               |
| protocol_version        | 10                  |
| slave_type_conversions  |                     |
| version                 | 5.5.9-log           |
| version_comment         | Source distribution |
| version_compile_machine | i386                |
| version_compile_os      | osx10.4             |
+-------------------------+---------------------+
7 rows in set (0.01 sec)

You may also use this:

mysql> select @@version;

The STATUS command display version information as well.

mysql> STATUS

You can also check the version by executing this command:

mysql -v

It's worth mentioning that if you have encountered something like this:

ERROR 2002 (HY000): Can't connect to local MySQL server through socket
'/tmp/mysql.sock' (2)

you can fix it by:

sudo ln -s /Applications/MAMP/tmp/mysql/mysql.sock /tmp/mysql.sock

You can use it for do something after reload data:

[UIView animateWithDuration:0 animations:^{
    [self.contentTableView reloadData];
} completion:^(BOOL finished) {
    _isUnderwritingUpdate = NO;
}];

I'm sure this question is about to die now that RHEL 5 is nearing end of life, but the answer seems to have gotten a lot simpler now:

sudo yum install epel-release
sudo yum install git

worked for me on a fresh install of CentOS 5.11.

In datatable options put this:

$(document).ready( function() {
  $('#example').dataTable({
    "aaSorting": [[ 2, 'asc' ]], 
    //More options ...

   });
})

Here is the solution: "aaSorting": [[ 2, 'asc' ]],

2 means table will be sorted by third column,
asc in ascending order.

hmm. why don't you use onClick()

<select id="mySelect" onChange="enable();">
   <option onClick="disable();">No</option>
   <option onClick="enable();">Yes</option>
</select>

If you have date object like

var date = new Date('2017/12/03');

then there is inbuilt method in javascript for getting date in milliseconds format which is valueOf()

date.valueOf(); //1512239400000 in milliseconds format

There is obviously another process listening on the port. You might find out that process by using the following command:

$ lsof -i :8000

or change your tornado app's port. tornado's error info not Explicitly on this.

In C, a string is actually stored as an array of characters, so the 'string pointer' is pointing to the first character. For instance,

char myString[] = "This is some text";

You can access any character as a simple char by using myString as an array, thus:

char myChar = myString[6];
printf("%c\n", myChar); // Prints s

Hope this helps! David

Use

public boolean shouldOverrideUrlLoading(WebView view, WebResourceRequest request) {
    return shouldOverrideUrlLoading(view, request.getUrl().toString());
}

You can't, Doctrine 2 doesn't allow for raw queries. It may seem like you can but if you try something like this:

$sql = "SELECT DATE_FORMAT(whatever.createdAt, '%Y-%m-%d') FORM whatever...";
$em = $this->getDoctrine()->getManager();
$em->getConnection()->exec($sql);

Doctrine will spit an error saying that DATE_FORMAT is an unknown function.

But my database (mysql) does know that function, so basically what is hapening is Doctrine is parsing that query behind the scenes (and behind your back) and finding an expression that it doesn't understand, considering the query to be invalid.

So if like me you want to be able to simply send a string to the database and let it deal with it (and let the developer take full responsibility for security), forget it.

Of course you could code an extension to allow that in some way or another, but you just as well off using mysqli to do it and leave Doctrine to it's ORM buisness.

In my situation, some pods were out of date after I updated my OS. Here's what fixed it:

In terminal:

cd /Users/quaisafzali/Desktop/AppFolder/Application/
pod install

Then, open your project in Xcode and Clean it (Cmd+Shift+K), then Build/Run.

This worked for me, hope it helps some of you!

The NoReverseMatch error is saying that Django cannot find a matching url pattern for the url you've provided in any of your installed app's urls.

The NoReverseMatch exception is raised by django.core.urlresolvers when a matching URL in your URLconf cannot be identified based on the parameters supplied.

To start debugging it, you need to start by disecting the error message given to you.

• NoReverseMatch at /my_url/

  This is the url that is currently being rendered, it is this url that your application is currently trying to access but it contains a url that cannot be matched

• Reverse for 'my_url_name'

  This is the name of the url that it cannot find

• with arguments '()' and

  These are the non-keyword arguments its providing to the url

• keyword arguments '{}' not found.

  These are the keyword arguments its providing to the url

• n pattern(s) tried: []

  These are the patterns that it was able to find in your urls.py files that it tried to match against

Start by locating the code in your source relevant to the url that is currently being rendered - the url, the view, and any templates involved. In most cases, this will be the part of the code you're currently developing.

Once you've done this, read through the code in the order that django would be following until you reach the line of code that is trying to construct a url for your my_url_name. Again, this is probably in a place you've recently changed.

Now that you've discovered where the error is occuring, use the other parts of the error message to work out the issue.

The url name

• Are there any typos?
• Have you provided the url you're trying to access the given name?
• If you have set app_name in the app's urls.py (e.g. app_name = 'my_app') or if you included the app with a namespace (e.g. include('myapp.urls', namespace='myapp'), then you need to include the namespace when reversing, e.g. {% url 'myapp:my_url_name' %} or reverse('myapp:my_url_name').

Arguments and Keyword Arguments

The arguments and keyword arguments are used to match against any capture groups that are present within the given url which can be identified by the surrounding () brackets in the url pattern.

Assuming the url you're matching requires additional arguments, take a look in the error message and first take a look if the value for the given arguments look to be correct.

If they aren't correct:

• The value is missing or an empty string

  This generally means that the value you're passing in doesn't contain the value you expect it to be. Take a look where you assign the value for it, set breakpoints, and you'll need to figure out why this value doesn't get passed through correctly.

• The keyword argument has a typo

  Correct this either in the url pattern, or in the url you're constructing.

If they are correct:

• Debug the regex

  You can use a website such as regexr to quickly test whether your pattern matches the url you think you're creating, Copy the url pattern into the regex field at the top, and then use the text area to include any urls that you think it should match against.

  Common Mistakes:

  • Matching against the . wild card character or any other regex characters

    Remember to escape the specific characters with a \ prefix

  • Only matching against lower/upper case characters

    Try using either a-Z or \w instead of a-z or A-Z

• Check that pattern you're matching is included within the patterns tried

  If it isn't here then its possible that you have forgotten to include your app within the INSTALLED_APPS setting (or the ordering of the apps within INSTALLED_APPS may need looking at)

Django Version

In Django 1.10, the ability to reverse a url by its python path was removed. The named path should be used instead.

If you're still unable to track down the problem, then feel free to ask a new question that includes what you've tried, what you've researched (You can link to this question), and then include the relevant code to the issue - the url that you're matching, any relevant url patterns, the part of the error message that shows what django tried to match, and possibly the INSTALLED_APPS setting if applicable.

@section is for defining a content are override from a shared view. Basically, it is a way for you to adjust your shared view (similar to a Master Page in Web Forms).

You might find Scott Gu's write up on this very interesting.

Edit: Based on additional question clarification

The @RenderSection syntax goes into the Shared View, such as:

<div id="sidebar">
    @RenderSection("Sidebar", required: false)
</div>

This would then be placed in your view with @Section syntax:

@section Sidebar{
    <!-- Content Here -->
}

In MVC3+ you can either define the Layout file to be used for the view directly or you can have a default view for all views.

Common view settings can be set in _ViewStart.cshtml which defines the default layout view similar to this:

@{
    Layout = "~/Views/Shared/_Layout.cshtml";
}

You can also set the Shared View to use directly in the file, such as index.cshtml directly as shown in this snippet.

@{
    ViewBag.Title = "Corporate Homepage";
    ViewBag.BodyID = "page-home";
    Layout = "~/Views/Shared/_Layout2.cshtml";
}

There are a variety of ways you can adjust this setting with a few more mentioned in this SO answer.

It's already answered here -> Is my virtual environment (python) causing my PYTHONPATH to break?

UNIX/LINUX

Add "export PYTHONPATH=/usr/local/lib/python2.0" this to ~/.bashrc file and source it by typing "source ~/.bashrc" OR ". ~/.bashrc".

WINDOWS XP

1) Go to the Control panel 2) Double click System 3) Go to the Advanced tab 4) Click on Environment Variables

In the System Variables window, check if you have a variable named PYTHONPATH. If you have one already, check that it points to the right directories. If you don't have one already, click the New button and create it.

PYTHON CODE

Alternatively, you can also do below your code:-

import sys
sys.path.append("/home/me/mypy") 

The problem is with slashes: your variable contains them and the final command will be something like sed "s/string/path/to/something/g", containing way too many slashes.

Since sed can take any char as delimiter (without having to declare the new delimiter), you can try using another one that doesn't appear in your replacement string:

replacement="/my/path"
sed --expression "s@pattern@$replacement@"

Note that this is not bullet proof: if the replacement string later contains @ it will break for the same reason, and any backslash sequences like \1 will still be interpreted according to sed rules. Using | as a delimiter is also a nice option as it is similar in readability to /.

Check whether you have put name="your_radio" where you have inserted radio tag

if you have done this then check your php code. Use isset()

e.g.

   if(isset($_POST['submit']))
   {
    /*other variables*/
    $radio_value = $_POST["your_radio"];
   }

If you have done this as well then we need to look through your codes

This is how to easily convert from an ISO string to a SQL-Server datetime:

INSERT INTO time_data (ImportateDateTime) VALUES (CAST(CONVERT(datetimeoffset,'2019-09-13 22:06:26.527000') AS datetime))

Source https://www.sqlservercurry.com/2010/04/convert-character-string-iso-date-to.html

See my answer.

In real-world data this is a real problem: multiple, mismatched, incomplete, inconsistent and multilanguage/region date formats, often mixed freely in one dataset. It's not ok for production code to fail, let alone go exception-happy like a fox.

We need to try...catch multiple datetime formats fmt1,fmt2,...,fmtn and suppress/handle the exceptions (from strptime()) for all those that mismatch (and in particular, avoid needing a yukky n-deep indented ladder of try..catch clauses). From my solution

def try_strptime(s, fmts=['%d-%b-%y','%m/%d/%Y']):
    for fmt in fmts:
        try:
            return datetime.strptime(s, fmt)
        except:
            continue

    return None # or reraise the ValueError if no format matched, if you prefer

Inside a manager:

def delete_everything(self):
    Reporter.objects.all().delete()

def drop_table(self):
    cursor = connection.cursor()
    table_name = self.model._meta.db_table
    sql = "DROP TABLE %s;" % (table_name, )
    cursor.execute(sql)

One reason to use object over iframe is that object re-sizes the embedded content to fit the object dimensions. most notable on safari in iPhone 4s where screen width is 320px and the html from the embedded URL may set dimensions greater.

If the list is of type system.collections.generic you can use the "CopyTo" method available to copy elements of your array to other sub arrays. You specify the start element and number of elements to copy.

You could also make 3 clones of your original list and use the "RemoveRange" on each list to shrink the list to the size you want.

Or just create a helper method to do it for you.

One more point to all the above correct answers, it depends on what sort of programming you are doing. Kernel developing in Windows for example -> The stack is severely limited and you might not be able to take page faults like in user mode.

In such environments, new, or C-like API calls are prefered and even required.

Of course, this is merely an exception to the rule.

This is another great change from Google ... The suggested modification: replace onAttach(Activity activity) with onAttach(Context context) crashed my apps on older APIs since onAttach(Context context) will not be called on native fragments.

I am using the native fragments (android.app.Fragment) so I had to do the following to make it work again on older APIs (< 23).

Here is what I did:

@Override
public void onAttach(Context context) {
    super.onAttach(context);

    // Code here
}

@SuppressWarnings("deprecation")
@Override
public void onAttach(Activity activity) {
    super.onAttach(activity);

    if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M) {
        // Code here
    }
}

You can do it without regex

 input.Split(new string[] {"key :"},StringSplitOptions.None)[1]
      .Split('-')[0]
      .Trim();

use if var is null

That worked for me in Swift 5 like a charm, just add it to your viewDidLoad()

self.navigationItem.setHidesBackButton(true, animated: true)

My requirements included:

• must honor the dataContracts
• must deserialize dates in the format received in service
• must handle colelctions
• must target 3.5
• must NOT add an external dependency, especially not Newtonsoft (I'm creating a distributable package myself)
• must not be deserialized by hand

My solution in the end was to use SimpleJson(https://github.com/facebook-csharp-sdk/simple-json).

Although you can install it via a nuget package, I included just that single SimpleJson.cs file (with the MIT license) in my project and referenced it.

I hope this helps someone.

I am using EF 4.0 and WPF and I had similar problem, and .... found the issue that solved it (at least for me) in a very simple way.

Because, like you, I thought it must be simple to update a field in a table (i.e. in your case: Contact) that is referenced to by a foreignkey from another table (i.e. in your case: ContactType).

However, the Error Message: ".... is part of the object's key information and cannot be modified." only appears when you try to update a Primary Key (which wasn't my intention at all).

Had a closer look at the XML code of my EntityModel and found it:

<EntityType Name="Contact">
    <Key>
        <PropertyRef Name="ID" />
        <PropertyRef Name="contactTypeID" />   <!-- This second line caused my problem -->
    </Key>
    <Property Name="ID" Type="int" Nullable="false" />
    ...
    ...
</EntityType>

For some reason (maybe I made some foolish mistake within my database), when Visual Studio autogenerated for me the DataModel from my database, it added in that very table (Contact), where I wanted to update the field (ContactTypeID) a second PropertyRef (second line).

I just deleted that second PropertyRef:

<PropertyRef Name="contactTypeID" />

in both, the store model and the conceptual model and .... issue was solved :-)

Hence, remains like:

<EntityType Name="Contact">
    <Key>
        <PropertyRef Name="ID" />
    </Key>
    <Property Name="ID" Type="int" Nullable="false" />
    ...
    ...
</EntityType>

Updates and Inserts are now running smoothly like a baby .... :-)

Hence, good idea to check the XML of the datamodel to verify that only your PK is listed as PropertyRef. Worked for me ... :-)

Based on generality of this question, I think, that you'll need to setup your own HTTPS proxy on some server online. Do the following steps:

• Prepare your proxy server - install IIS, Apache
• Get valid SSL certificate to avoid security errors (free from startssl.com for example)
• Write a wrapper, which will download insecure content (how to below)
• From your site/app get https://yourproxy.com/?page=http://insecurepage.com

If you simply download remote site content via file_get_contents or similiar, you can still have insecure links to content. You'll have to find them with regex and also replace. Images are hard to solve, but Ï found workaround here: http://foundationphp.com/tutorials/image_proxy.php

Note: While this solution may have worked in some browsers when it was written in 2014, it no longer works. Navigating or redirecting to an HTTP URL in an iframe embedded in an HTTPS page is not permitted by modern browsers, even if the frame started out with an HTTPS URL.

The best solution I created is to simply use google as the ssl proxy...

https://www.google.com/search?q=%http://yourhttpsite.com&btnI=Im+Feeling+Lucky

Tested and works in firefox.

Other Methods:

• Use a Third party such as embed.ly (but it it really only good for well known http APIs).

• Create your own redirect script on an https page you control (a simple javascript redirect on a relative linked page should do the trick. Something like: (you can use any langauge/method)

  https://example.com That has a iframe linking to...

  https://example.com/utilities/redirect.html Which has a simple js redirect script like...

  document.location.href ="http://thenonsslsite.com";

• Alternatively, you could add an RSS feed or write some reader/parser to read the http site and display it within your https site.

• You could/should also recommend to the http site owner that they create an ssl connection. If for no other reason than it increases seo.

Unless you can get the http site owner to create an ssl certificate, the most secure and permanent solution would be to create an RSS feed grabing the content you need (presumably you are not actually 'doing' anything on the http site -that is to say not logging in to any system).

The real issue is that having http elements inside a https site represents a security issue. There are no completely kosher ways around this security risk so the above are just current work arounds.

Note, that you can disable this security measure in most browsers (yourself, not for others). Also note that these 'hacks' may become obsolete over time.

Or create a function that creates an element including attributes from parameters

function elemCreate(elType){
  var element = document.createElement(elType);
  if (arguments.length>1){
    var props = [].slice.call(arguments,1), key = props.shift();
    while (key){ 
      element.setAttribute(key,props.shift());
      key = props.shift();
    }
  }
  return element;
}
// usage
var img = elemCreate('img',
            'width','100',
            'height','100',
            'src','http://example.com/something.jpeg');

FYI: height/width='100%' would not work using attributes. For a height/width of 100% you need the elements style.height/style.width

For those who are using Database First approach all you have to do after inserting a new entity is to Generate Database From Model again by right click on your .edmx file and select Generate Database From Model...

Little update. There is a hook available for react-cookie

1) First of all, install the dependency (just for a note)

yarn add react-cookie

or

npm install react-cookie

2) My usage example:

// SignInComponent.js
import { useCookies } from 'react-cookie'

const SignInComponent = () => {

// ...

const [cookies, setCookie] = useCookies(['access_token', 'refresh_token'])

async function onSubmit(values) {
    const response = await getOauthResponse(values);

    let expires = new Date()
    expires.setTime(expires.getTime() + (response.data.expires_in * 1000))
    setCookie('access_token', response.data.access_token, { path: '/',  expires})
    setCookie('refresh_token', response.data.refresh_token, {path: '/', expires})

    // ...
}

// next goes my sign-in form

}

Hope it is helpful.

Suggestions to improve the example above are very appreciated!

Update (9/25/2018)

Newer versions of AngularJS (>= 1.3.0) allow you to do this with only a variable (no function needed):

<li ng-repeat="x in [].constructor(number) track by $index">
    <span>{{ $index+1 }}</span>
</li>

$scope.number = 5;

This was not possible at the time the question was first asked. Credit to @Nikhil Nambiar from his answer below for this update

Original (5/29/2013)

At the moment, ng-repeat only accepts a collection as a parameter, but you could do this:

<li ng-repeat="i in getNumber(number)">
    <span>{{ $index+1 }}</span>
</li>

And somewhere in your controller:

$scope.number = 5;
$scope.getNumber = function(num) {
    return new Array(num);   
}

This would allow you to change $scope.number to any number as you please and still maintain the binding you're looking for.

EDIT (1/6/2014) -- Newer versions of AngularJS (>= 1.1.5) require track by $index:

<li ng-repeat="i in getNumber(number) track by $index">
    <span>{{ $index+1 }}</span>
</li>

Here is a fiddle with a couple of lists using the same getNumber function.

points is not within the function's scope. You can grab a reference to the variable by using nonlocal:

points = 0
def test():
    nonlocal points
    points += 1

If points inside test() should refer to the outermost (module) scope, use global:

points = 0
def test():
    global points
    points += 1

You need to actually use the shortened array after you remove items from it. You are ignoring the shortened array.

You convert the cookie into an array. You reduce the length of the array and then you never use that shortened array. Instead, you just use the old cookie (the unshortened one).

You should convert the shortened array back to a string with .join(",") and then use it for the new cookie instead of using old_cookie which is not shortened.

You may also not be using .splice() correctly, but I don't know exactly what your objective is for shortening the array. You can read about the exact function of .splice() here.

For just copying (possibly long) texts to the Windows clipboard, I have found that just piping the output to clip.exe (including the .exe file extension) works fine for me. So:

$ echo "Hello World" | clip.exe

lets me paste Hello World using Ctrl-V anywhere else.

Now that I have posted this, I notice that related question Pipe from clipboard in linux subsytem for windows includes this and a command solution for pasting from the Windows clipboard as well.

Consider the figure enclosed in this other question. ebp-4 is your first local variable and, seen as a dword pointer, it is the address of a 32 bit integer that has to be cleared. Maybe your source starts with

Object x = null;

To simplify, make sure to add a hash bang to the top of your ExecStart script, i.e.

#!/bin/bash

python -u alwayson.py    

To get upper case version of a string you can use str.upper:

s = 'sdsd'
s.upper()
#=> 'SDSD'

On the other hand string.ascii_uppercase is a string containing all ASCII letters in upper case:

import string
string.ascii_uppercase
#=> 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'

New -> Batch Drawable Import -> Click on Add button -> Select image -> Select Target Resolution, Target Name, Format -> Ok

I'm using MySQL 5.5.19.

I like having scripts that you can run and rerun without error, especially where warnings seem to linger, showing up again later while I'm running scripts that have no errors/warnings. As far as adding fields goes, I wrote myself a procedure to make it a little less typing:

-- add fields to template table to support ignoring extra data 
-- at the top/bottom of every page
CALL addFieldIfNotExists ('template', 'firstPageHeaderEndY', 'INT NOT NULL DEFAULT 0');
CALL addFieldIfNotExists ('template', 'pageHeaderEndY', 'INT NOT NULL DEFAULT 0');
CALL addFieldIfNotExists ('template', 'pageFooterBeginY', 'INT NOT NULL DEFAULT 792');

The code to create the addFieldIfNotExists procedure is as follows:

DELIMITER $$

DROP PROCEDURE IF EXISTS addFieldIfNotExists 
$$

DROP FUNCTION IF EXISTS isFieldExisting 
$$

CREATE FUNCTION isFieldExisting (table_name_IN VARCHAR(100), field_name_IN VARCHAR(100)) 
RETURNS INT
RETURN (
    SELECT COUNT(COLUMN_NAME) 
    FROM INFORMATION_SCHEMA.columns 
    WHERE TABLE_SCHEMA = DATABASE() 
    AND TABLE_NAME = table_name_IN 
    AND COLUMN_NAME = field_name_IN
)
$$

CREATE PROCEDURE addFieldIfNotExists (
    IN table_name_IN VARCHAR(100)
    , IN field_name_IN VARCHAR(100)
    , IN field_definition_IN VARCHAR(100)
)
BEGIN

    -- http://javajon.blogspot.com/2012/10/mysql-alter-table-add-column-if-not.html

    SET @isFieldThere = isFieldExisting(table_name_IN, field_name_IN);
    IF (@isFieldThere = 0) THEN

        SET @ddl = CONCAT('ALTER TABLE ', table_name_IN);
        SET @ddl = CONCAT(@ddl, ' ', 'ADD COLUMN') ;
        SET @ddl = CONCAT(@ddl, ' ', field_name_IN);
        SET @ddl = CONCAT(@ddl, ' ', field_definition_IN);

        PREPARE stmt FROM @ddl;
        EXECUTE stmt;
        DEALLOCATE PREPARE stmt;

    END IF;

END;
$$

I didn't write a procedure to safely modify a column, but I think the above procedure could be easily modified to do so.

Answering your question in Dhara's answer comments: "I would like on the second x-axis these tics: (7,8,99) corresponding to the x-axis position 10, 30, 40. Is that possible in some way?" Yes, it is.

import numpy as np
import matplotlib.pyplot as plt

fig = plt.figure()
ax1 = fig.add_subplot(111)

a = np.cos(2*np.pi*np.linspace(0, 1, 60.))
ax1.plot(range(60), a)

ax1.set_xlim(0, 60)
ax1.set_xlabel("x")
ax1.set_ylabel("y")

ax2 = ax1.twiny()
ax2.set_xlabel("x-transformed")
ax2.set_xlim(0, 60)
ax2.set_xticks([10, 30, 40])
ax2.set_xticklabels(['7','8','99'])

plt.show()

You'll get:

In Windows run the following commands in the command prompt as adminstrator

Step 1:
mysql_install_db.exe

Step 2:
mysqld --initialize

Step 3:
mysqld --console

Step 4:
In windows

Step 4:
mysqladmin -u root password "XXXXXXX"

Step 5:
mysql -u root -p

You could load the external page with jquery:

<script>$("#testLoad").load("http://www.somesite.com/somepage.html");</script>
<div id="testLoad"></div>
//would this help

I had this issue after my database was working fine for long time. It turned out it was some data corruption.

In the error log I had:

2017-02-07T10:11:42.270567Z 0 [ERROR] InnoDB: Ignoring the redo log due to missing MLOG_CHECKPOINT between the checkpoint 44002250712 and the end 44002250240.
2017-02-07T10:11:42.270606Z 0 [ERROR] InnoDB: Plugin initialization aborted with error Generic error
2017-02-07T10:11:42.577436Z 0 [ERROR] Plugin 'InnoDB' init function returned error.
2017-02-07T10:11:42.577470Z 0 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.
2017-02-07T10:11:42.577484Z 0 [ERROR] Failed to initialize plugins.
2017-02-07T10:11:42.577488Z 0 [ERROR] Aborting

Then I had to delete the 2 ib_logfile* files, and it restarted again.

Download and install Eclipse, and you're good to go.
http://www.eclipse.org/downloads/

Apple provides its own version of Java, so make sure it's up-to-date.
http://developer.apple.com/java/download/

Eclipse is an integrated development environment. It has many features, but the ones that are relevant for you at this stage is:

• The source code editor
  • With syntax highlighting, colors and other visual cues
  • Easy cross-referencing to the documentation to facilitate learning
• Compiler
  • Run the code with one click
  • Get notified of errors/mistakes as you go

As you gain more experience, you'll start to appreciate the rest of its rich set of features.

In XCode 4.0 main workspace, at the top left side & just after the "Stop Button", there is scheme selector, click on it and change your scheme to IPhone Simulator. That's it

For a Mac it is the following combination: Cmd + /

Caught this error: found solution.

For some reason, there were 2 onClick attributes on my tag. Be careful with using your or somebodies' custom components, maybe some of them already have onClick attribute.

For those who don't know, npp has a lot of support from plugins and other projects. You can download those plugins from SourceForge.

You need XML Tools to format your text in n++

After you have downloaded XML Tools ..

Exit Notepad++

Go To C:\Program File\Notepad++ .... Your N++ installed folder.

1. Place below files from xml tools which you downloaded in the npp root folder by copy replace

2. Go To ..\Plugins subfolder and place below downloaded file

Restart and enjoy!!!

Ctrl + Alt + Shft + B to format.

Here comes a solution with XSLT:

<?xml version="1.0" encoding="utf-8"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:template match="//element3">
    <xsl:value-of select="element4/text()" />.<xsl:value-of select="element5/text()" />
</xsl:template>
</xsl:stylesheet>

I use serializable classes for the WCF communication between different modules. Below is an example of serializable class which serves as DataContract as well. My approach is to use the power of LINQ to convert the Dictionary into out-of-the-box serializable List<> of KeyValuePair<>:

    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Runtime.Serialization;
    using System.Xml.Serialization;

    namespace MyFirm.Common.Data
    {
        [DataContract]
        [Serializable]
        public class SerializableClassX
        {
            // since the Dictionary<> class is not serializable,
            // we convert it to the List<KeyValuePair<>>
            [XmlIgnore]
            public Dictionary<string, int> DictionaryX 
            {
                get
                {
                    return  SerializableList == null ? 
                            null :
                            SerializableList.ToDictionary(item => item.Key, item => item.Value);
                }

                set
                {
                    SerializableList =  value == null ?
                                        null :
                                        value.ToList();
                }
            }

            [DataMember]
            [XmlArray("SerializableList")]
            [XmlArrayItem("Pair")]
            public List<KeyValuePair<string, int>> SerializableList { get; set; }
        }
    }

The usage is straightforward - I assign a dictionary to my data object's dictionary field - DictionaryX. The serialization is supported inside the SerializableClassX by conversion of the assigned dictionary into the serializable List<> of KeyValuePair<>:

    // create my data object
    SerializableClassX SerializableObj = new SerializableClassX(param);

    // this will call the DictionaryX.set and convert the '
    // new Dictionary into SerializableList
    SerializableObj.DictionaryX = new Dictionary<string, int>
    {
        {"Key1", 1},
        {"Key2", 2},
    };

Have you googled about it - insert update delete access vb.net, there are lots of reference about this.

Insert Update Delete Navigation & Searching In Access Database Using VB.NET

• Create Visual Basic 2010 Project: VB-Access
• Assume that, we have a database file named data.mdb
• Place the data.mdb file into ..\bin\Debug\ folder (Where the project executable file (.exe) is placed)

what could be the easier way to connect and manipulate the DB?
Use OleDBConnection class to make connection with DB

is it by using MS ACCESS 2003 or MS ACCESS 2007?
you can use any you want to use or your client will use on their machine.

it seems that you want to find some example of opereations fo the database. Here is an example of Access 2010 for your reference:

Example code snippet:

Imports System
Imports System.Data
Imports System.Data.OleDb

Public Class DBUtil

 Private connectionString As String

 Public Sub New()

  Dim con As New OleDb.OleDbConnection
  Dim dbProvider As String = "Provider=Microsoft.ace.oledb.12.0;"
  Dim dbSource = "Data Source=d:\DB\Database11.accdb"

  connectionString = dbProvider & dbSource

 End Sub

 Public Function GetCategories() As DataSet

  Dim query As String = "SELECT * FROM Categories"
  Dim cmd As New OleDbCommand(query)
  Return FillDataSet(cmd, "Categories")

 End Function

 Public SubUpdateCategories(ByVal name As String)
  Dim query As String = "update Categories set name = 'new2' where name = ?"
  Dim cmd As New OleDbCommand(query)
cmd.Parameters.AddWithValue("Name", name)
  Return FillDataSet(cmd, "Categories")

 End Sub

 Public Function GetItems() As DataSet

  Dim query As String = "SELECT * FROM Items"
  Dim cmd As New OleDbCommand(query)
  Return FillDataSet(cmd, "Items")

 End Function

 Public Function GetItems(ByVal categoryID As Integer) As DataSet

  'Create the command.
  Dim query As String = "SELECT * FROM Items WHERE Category_ID=?"
  Dim cmd As New OleDbCommand(query)
  cmd.Parameters.AddWithValue("category_ID", categoryID)

  'Fill the dataset.
  Return FillDataSet(cmd, "Items")

 End Function

 Public Sub AddCategory(ByVal name As String)

  Dim con As New OleDbConnection(connectionString)

  'Create the command.
  Dim insertSQL As String = "INSERT INTO Categories "
  insertSQL &= "VALUES(?)"
  Dim cmd As New OleDbCommand(insertSQL, con)
  cmd.Parameters.AddWithValue("Name", name)

  Try
   con.Open()
   cmd.ExecuteNonQuery()
  Finally
   con.Close()
  End Try

 End Sub

 Public Sub AddItem(ByVal title As String, ByVal description As String, _
    ByVal price As Decimal, ByVal categoryID As Integer)

  Dim con As New OleDbConnection(connectionString)

  'Create the command.
  Dim insertSQL As String = "INSERT INTO Items "
  insertSQL &= "(Title, Description, Price, Category_ID)"
  insertSQL &= "VALUES (?, ?, ?, ?)"
  Dim cmd As New OleDb.OleDbCommand(insertSQL, con)
  cmd.Parameters.AddWithValue("Title", title)
  cmd.Parameters.AddWithValue("Description", description)
  cmd.Parameters.AddWithValue("Price", price)
  cmd.Parameters.AddWithValue("CategoryID", categoryID)

  Try
   con.Open()
   cmd.ExecuteNonQuery()
  Finally
   con.Close()
  End Try

 End Sub

 Private Function FillDataSet(ByVal cmd As OleDbCommand, ByVal tableName As String) As DataSet

  Dim con As New OleDb.OleDbConnection
  Dim dbProvider As String = "Provider=Microsoft.ace.oledb.12.0;"
  Dim dbSource = "Data Source=D:\DB\Database11.accdb"

  connectionString = dbProvider & dbSource
  con.ConnectionString = connectionString
  cmd.Connection = con
  Dim adapter As New OleDbDataAdapter(cmd)
  Dim ds As New DataSet()

  Try
   con.Open()
   adapter.Fill(ds, tableName)
  Finally
   con.Close()
  End Try
  Return ds

 End Function

End Class

Refer these links:
Insert, Update, Delete & Search Values in MS Access 2003 with VB.NET 2005
INSERT, DELETE, UPDATE AND SELECT Data in MS-Access with VB 2008
How Add new record ,Update record,Delete Records using Vb.net Forms when Access as a back

Execute the following on your terminal to get the latest stable version:

sudo gem install cocoapods

Add --pre to get the latest pre release:

sudo gem install cocoapods --pre

If you originally installed the cocoapods gem using sudo, you should use that command again.

Later on, when you're actively using CocoaPods by installing pods, you will be notified when new versions become available with a CocoaPods X.X.X is now available, please update message.

very simple go for this

$str;
foreach ($arrays as $arr) {
$str .= $arr["tag_name"] . ",";
}
$str = trim($str, ',');//removes the final comma 

Please try this, VB.NET 2010:

1. Integer.TryParse(txtPrice.Text, decPrice)
2. decPrice = Convert.ToInt32(txtPrice.Text)

From Mola Tshepo Kingsley (WWW.TUT.AC.ZA)

You forgot the return types in your member function definitions:

int ttTree::ttTreeInsert(int value) { ... }
^^^               

and so on.

Git 1.7.0 has “sparse checkouts”. See “core.sparseCheckout” in the git config manpage, “Sparse checkout” in the git read-tree manpage, and “Skip-worktree bit” in the git update-index manpage.

The interface is not as convenient as SVN’s (e.g. there is no way to make a sparse checkout at the time of an initial clone), but the base functionality upon which simpler interfaces could be built is now available.

ResponseEntity is meant to represent the entire HTTP response. You can control anything that goes into it: status code, headers, and body.

@ResponseBody is a marker for the HTTP response body and @ResponseStatus declares the status code of the HTTP response.

@ResponseStatus isn't very flexible. It marks the entire method so you have to be sure that your handler method will always behave the same way. And you still can't set the headers. You'd need the HttpServletResponse or a HttpHeaders parameter.

Basically, ResponseEntity lets you do more.

You could designate a class for each cell in the second column.

<table>
<tr><td>Column 1</td><td class="col2">Col 2</td></tr>
<tr><td>Column 1</td><td class="col2">Col 2</td></tr>
<tr><td>Column 1</td><td class="col2">Col 2</td></tr>
<tr><td>Column 1</td><td class="col2">Col 2</td></tr>
</table>

Based on Bluefeet's accepted response with an added nuance using OVER():

SELECT distributor_id,
    COUNT(*) total,
    SUM(case when level = 'exec' then 1 else 0 end) OVER() ExecCount,
    SUM(case when level = 'personal' then 1 else 0 end) OVER () PersonalCount
FROM yourtable
GROUP BY distributor_id

Using OVER() with nothing in the () will give you the total count for the whole dataset.

Elements are added to list using append():

>>> data = {'list': [{'a':'1'}]}
>>> data['list'].append({'b':'2'})
>>> data
{'list': [{'a': '1'}, {'b': '2'}]}

If you want to add element to a specific place in a list (i.e. to the beginning), use insert() instead:

>>> data['list'].insert(0, {'b':'2'})
>>> data
{'list': [{'b': '2'}, {'a': '1'}]}

After doing that, you can assemble JSON again from dictionary you modified:

>>> json.dumps(data)
'{"list": [{"b": "2"}, {"a": "1"}]}'

You can download JSTL 1.1 here and JSTL 1.2 here.

See also:

• JSTL wiki page

I've been using Bitvise SSH Server for a number of years. It is a wonderful product and it is easy to setup and maintain. It gives you great control over how users connect to the server with support for security groups.

This is another solution:

def diff(a, b):
    xa = [i for i in set(a) if i not in b]
    xb = [i for i in set(b) if i not in a]
    return xa + xb

There are several ways you can achieve this based on the approach you take. For reactive approach, you can pass the default value to the constructor of the FormControl(import from @angular/forms)

this.randomForm = new FormGroup({
      'amateur': new FormControl(false),
});

Instead of true or false value, yes you can send variable name as well like FormControl(this.booleanVariable)

In template driven approach you can use 1 way binding [ngModel]="this.booleanVariable" or 2 way binding [(ngModel)]="this.booleanVariable" like this

<mat-checkbox
     name="controlName"
     [(ngModel)]="booleanVariable">
     {{col.title}}
</mat-checkbox>

You can also use the checked directive provided by angular material and bind in similar manner

Use <include /> tag.

          <include 
            android:id="@+id/some_id_if_needed"
            layout="@layout/some_layout"/>

Also, read Creating Reusable UI Components and Merging Layouts articles.

Add the following 2 lines

var regex = new Regex(Regex.Escape(","));
sb_trim = regex.Replace(sb_trim, " ", 1);

If sb_trim= John,Smith,100000,M the above code will return "John Smith,100000,M"

You need a bindingsource object to act as an intermediary and assist in the binding. Then instead of updating the user interface, update the underlining model.

var model = (Fruit) bindingSource1.DataSource;

model.FruitType = "oranges";

bindingSource.ResetBindings();

Read up on BindingSource and simple data binding for Windows Forms.

You can write it globally like below.

Normal JS:

$(function(){

    $('#loader').hide()
    $(document).ajaxStart(function() {
        $('#loader').show();
    })
    $(document).ajaxError(function() {
        alert("Something went wrong...")
        $('#loader').hide();
    })
    $(document).ajaxStop(function() {
        $('#loader').hide();
    });
    $.ajaxSetup({
        beforeSend: function(xhr) {xhr.setRequestHeader('X-CSRF-Token', $('meta[name="csrf-token"]').attr('content'))}
    });
});

Coffee Script:

  $('#loader').hide()
  $(document).ajaxStart ->
    $('#loader').show()

  $(document).ajaxError ->
    alert("Something went wrong...")
    $('#loader').hide()

  $(document).ajaxStop ->
    $('#loader').hide()

  $.ajaxSetup {
    beforeSend: (xhr) ->
      xhr.setRequestHeader('X-CSRF-Token', $('meta[name="csrf-token"]').attr('content'))
  }

If I understand this correctly, here's how I would phrase this from the perspective of the function implementing IEnumerable with yield.

• Here's one.
• Call again if you need another.
• I'll remember what I already gave you.
• I'll only know if I can give you another when you call again.

You can convert a datetime.date object into a pandas Timestamp like this:

#!/usr/bin/env python3
# coding: utf-8

import pandas as pd
import datetime

# create a datetime data object
d_time = datetime.date(2010, 11, 12)

# create a pandas Timestamp object
t_stamp = pd.to_datetime('2010/11/12')

# cast `datetime_timestamp` as Timestamp object and compare
d_time2t_stamp = pd.to_datetime(d_time)

# print to double check
print(d_time)
print(t_stamp)
print(d_time2t_stamp)

# since the conversion succeds this prints `True`
print(d_time2t_stamp == t_stamp)

There is no good answer as Python and Java are both specifications for which there are many different implementations. For example, CPython, IronPython, Jython, and PyPy are just a handful of Python implementations out there. For Java, there is the HotSpot VM, the Mac OS X Java VM, OpenJRE, etc. Jython generates Java bytecode, and so it would be using more-or-less the same underlying Java. CPython implements quite a handful of things directly in C, so it is very fast, but then again Java VMs also implement many functions in C. You would probably have to measure on a function-by-function basis and across a variety of interpreters and VMs in order to make any reasonable statement.

You are creating those bytes objects yourself:

item['title'] = [t.encode('utf-8') for t in title]
item['link'] = [l.encode('utf-8') for l in link]
item['desc'] = [d.encode('utf-8') for d in desc]
items.append(item)

Each of those t.encode(), l.encode() and d.encode() calls creates a bytes string. Do not do this, leave it to the JSON format to serialise these.

Next, you are making several other errors; you are encoding too much where there is no need to. Leave it to the json module and the standard file object returned by the open() call to handle encoding.

You also don't need to convert your items list to a dictionary; it'll already be an object that can be JSON encoded directly:

class W3SchoolPipeline(object):    
    def __init__(self):
        self.file = open('w3school_data_utf8.json', 'w', encoding='utf-8')

    def process_item(self, item, spider):
        line = json.dumps(item) + '\n'
        self.file.write(line)
        return item

I'm guessing you followed a tutorial that assumed Python 2, you are using Python 3 instead. I strongly suggest you find a different tutorial; not only is it written for an outdated version of Python, if it is advocating line.decode('unicode_escape') it is teaching some extremely bad habits that'll lead to hard-to-track bugs. I can recommend you look at Think Python, 2nd edition for a good, free, book on learning Python 3.

I notice that recent Oracle client installers change file permissions.

I had Oracle 12.0.1 32 bit client installed for a year. I recently installed Oracle 12.0.1 64 bit client. The Oracle install change ALL file permissions in the 32 bit folders.

My application suddenly failed to run.

I used PROCMON.EXE (https://docs.microsoft.com/en-us/sysinternals/downloads/) and noticed that permission was denied opening OCI.DLL

I changed the permissions for everything in the Oracle client folders and application works as expected.

To activate "test" profile write in your build.gradle:

    test.doFirst {
        systemProperty 'spring.profiles.active', 'test'
        activeProfiles = 'test'
    }

>>> A           = [6, 7, 8, 9, 10, 11, 12]
>>> subset_of_A  = [6, 9, 12];
>>> set(A) - set(subset_of_A)
set([8, 10, 11, 7])
>>> 

The problem must be with the parameters you are passing(You must be passing blank parameters). For example : http://www.myurl.com?id=5&name= Check if you are handling this at the server you are calling.

This looks like a problem with line endings in your code. If you're going to be using all these other scientific packages, you may as well use Pandas for the CSV reading part, which is both more robust and more useful than just the csv module:

import pandas
colnames = ['year', 'name', 'city', 'latitude', 'longitude']
data = pandas.read_csv('test.csv', names=colnames)

If you want your lists as in the question, you can now do:

names = data.name.tolist()
latitude = data.latitude.tolist()
longitude = data.longitude.tolist()

Actually what u did is also not wrong your declaration is right . With your declaration JVM will create a ArrayList of integer arrays i.e each entry in arraylist correspond to an integer array hence your add function should pass a integer array as a parameter.

For Ex:

list.add(new Integer[3]);

In this way first entry of ArrayList is an integer array which can hold at max 3 values.

I'm not sure if this answers your question, but using the IS NULL construct, you can test whether any given scalar expression is NULL:

SELECT * FROM customers WHERE first_name IS NULL

On MS SQL Server, the ISNULL() function returns the first argument if it's not NULL, otherwise it returns the second. You can effectively use this to make sure a query always yields a value instead of NULL, e.g.:

SELECT ISNULL(column1, 'No value found') FROM mytable WHERE column2 = 23

Other DBMSes have similar functionality available.

If you want to know whether a column can be null (i.e., is defined to be nullable), without querying for actual data, you should look into information_schema.

For Jenkins 2.190.1 this works for sure:

    post {
        always {
            cleanWs deleteDirs: true, notFailBuild: true
        }
    }

tar.gz file is just a tar file that's been gzipped. Both tar and gzip are available for windows.

If you like GUIs (Graphical user interface), 7zip can pack with both tar and gzip.

An ES6 approach to clearing a group of radio buttons:

    Array.from( document.querySelectorAll('input[name="group-name"]:checked'), input => input.checked = false );

Perhaps not a "builtin", but I consider it builtin. anyways just use numpy

import numpy 
prod_sum = numpy.prod(some_list)

Have you tried with prop() ??

Well prop() seems works for me.