Programs & Examples On #Nsindexpath

Here is a code to get custom cell from index path

 NSIndexPath *indexPath = [NSIndexPath indexPathForRow:2 inSection:0];
 YourCell *cell = (YourCell *)[tblRegister cellForRowAtIndexPath:indexPath];

For Swift

let indexpath = NSIndexPath(forRow: 2, inSection: 0)
let currentCell = tblTest.cellForRowAtIndexPath(indexpath) as! CellTest

For Swift 4 (for collectionview)

let indexpath = NSIndexPath(row: 2, section: 0)
let cell = self.colVw!.cellForItem(at: indexpath as IndexPath) as? ColViewCell

Swift 4.1

use it when you delete row using selectedTag of row.

self.tableView.beginUpdates()

        self.yourArray.remove(at:  self.selectedTag)
        print(self.allGroups)

        let indexPath = NSIndexPath.init(row:  self.selectedTag, section: 0)

        self.tableView.deleteRows(at: [indexPath as IndexPath], with: .automatic)

        self.tableView.endUpdates()

        self.tableView.reloadRows(at: self.tableView.indexPathsForVisibleRows!, with: .automatic)

Use [NSIndexPath indexPathForRow:inSection:] to quickly create an index path.

Edit: In Swift 3:

let indexPath = IndexPath(row: rowIndex, section: sectionIndex)

Swift 5

IndexPath(row: 0, section: 0)

Use the solution like a below and this works in v3.2.5.

<Route
  path="/foo"
  component={() => (
    <Content
      lang="foo"
      meta={{
        description: lang_foo.description
      }}
    />
  )}
/>

or

<Route path="/foo">
  <Content
    lang="foo"
    meta={{
      description: lang_foo.description
    }}
  />
</Route>

$.ajax({
  url:href,
  type:'get',
  success: function(data){
   console.log($(data)); 
  }
});

This console log gets an array like object: [meta, title, ,], very strange

You can use JavaScript:

var doc = document.documentElement.cloneNode()
doc.innerHTML = data
$content = $(doc.querySelector('#content'))

Following worked on M1

ProductName:    macOS
ProductVersion: 11.2.1
BuildVersion:   20D74

% xcode-select --install

Agree the Terms and Conditions prompt, it will return following message on success.

% xcode-select: note: install requested for command line developer tools

For newer Android 1.0.2 the following is already there in your build.gradle file

implementation fileTree(include: ['*.jar'], dir: 'libs')

Add the library jar to your libs folder -> right click the library -> click add as a library -> it asks you for the project to add it for -> select your project-> click ok The following line is automatically added to build.gradle

implementation files('libs/android-query.jar')

That did it for me. nothing more was required. i have shown this for android aquery another third party library for android.

It seems that for Jackson 1.9.12 there is no such possibility by default, because of:

public final static class DateTimeSerializer
    extends JodaSerializer<DateTime>
{
    public DateTimeSerializer() { super(DateTime.class); }

    @Override
    public void serialize(DateTime value, JsonGenerator jgen, SerializerProvider provider)
        throws IOException, JsonGenerationException
    {
        if (provider.isEnabled(SerializationConfig.Feature.WRITE_DATES_AS_TIMESTAMPS)) {
            jgen.writeNumber(value.getMillis());
        } else {
            jgen.writeString(value.toString());
        }
    }

    @Override
    public JsonNode getSchema(SerializerProvider provider, java.lang.reflect.Type typeHint)
    {
        return createSchemaNode(provider.isEnabled(SerializationConfig.Feature.WRITE_DATES_AS_TIMESTAMPS)
                ? "number" : "string", true);
    }
}

This class serializes data using toString() method of Joda DateTime.

Approach proposed by Rusty Kuntz works perfect for my case.

It's not working because console.log() it's not in a "executable area" of the class "App".

A class is a structure composed by attributes and methods.

The only way to have your code executed is to place it inside a method that is going to be executed. For instance: constructor()

console.log('It works here')_x000D_
_x000D_
@Component({..)_x000D_
export class App {_x000D_
 s: string = "Hello2";_x000D_
            _x000D_
  constructor() {_x000D_
    console.log(this.s)            _x000D_
  }            _x000D_
}

Think of class like a plain javascript object.

Would it make sense to expect this to work?

class:  {_x000D_
  s: string,_x000D_
  console.log(s)_x000D_
 }

If you still unsure, try the typescript playground where you can see your typescript code generated into plain javascript.

https://www.typescriptlang.org/play/index.html

Is it actually faster to use say (i<<3)+(i<<1) to multiply with 10 than using i*10 directly?

It might or might not be on your machine - if you care, measure in your real-world usage.

A case study - from 486 to core i7

Benchmarking is very difficult to do meaningfully, but we can look at a few facts. From http://www.penguin.cz/~literakl/intel/s.html#SAL and http://www.penguin.cz/~literakl/intel/i.html#IMUL we get an idea of x86 clock cycles needed for arithmetic shift and multiplication. Say we stick to "486" (the newest one listed), 32 bit registers and immediates, IMUL takes 13-42 cycles and IDIV 44. Each SAL takes 2, and adding 1, so even with a few of those together shifting superficially looks like a winner.

These days, with the core i7:

(from http://software.intel.com/en-us/forums/showthread.php?t=61481)

The latency is 1 cycle for an integer addition and 3 cycles for an integer multiplication. You can find the latencies and thoughput in Appendix C of the "Intel® 64 and IA-32 Architectures Optimization Reference Manual", which is located on http://www.intel.com/products/processor/manuals/.

(from some Intel blurb)

Using SSE, the Core i7 can issue simultaneous add and multiply instructions, resulting in a peak rate of 8 floating-point operations (FLOP) per clock cycle

That gives you an idea of how far things have come. The optimisation trivia - like bit shifting versus * - that was been taken seriously even into the 90s is just obsolete now. Bit-shifting is still faster, but for non-power-of-two mul/div by the time you do all your shifts and add the results it's slower again. Then, more instructions means more cache faults, more potential issues in pipelining, more use of temporary registers may mean more saving and restoring of register content from the stack... it quickly gets too complicated to quantify all the impacts definitively but they're predominantly negative.

functionality in source code vs implementation

More generally, your question is tagged C and C++. As 3rd generation languages, they're specifically designed to hide the details of the underlying CPU instruction set. To satisfy their language Standards, they must support multiplication and shifting operations (and many others) even if the underlying hardware doesn't. In such cases, they must synthesize the required result using many other instructions. Similarly, they must provide software support for floating point operations if the CPU lacks it and there's no FPU. Modern CPUs all support * and <<, so this might seem absurdly theoretical and historical, but the significance thing is that the freedom to choose implementation goes both ways: even if the CPU has an instruction that implements the operation requested in the source code in the general case, the compiler's free to choose something else that it prefers because it's better for the specific case the compiler's faced with.

Examples (with a hypothetical assembly language)

source           literal approach         optimised approach
#define N 0
int x;           .word x                xor registerA, registerA
x *= N;          move x -> registerA
                 move x -> registerB
                 A = B * immediate(0)
                 store registerA -> x
  ...............do something more with x...............

Instructions like exclusive or (xor) have no relationship to the source code, but xor-ing anything with itself clears all the bits, so it can be used to set something to 0. Source code that implies memory addresses may not entail any being used.

These kind of hacks have been used for as long as computers have been around. In the early days of 3GLs, to secure developer uptake the compiler output had to satisfy the existing hardcore hand-optimising assembly-language dev. community that the produced code wasn't slower, more verbose or otherwise worse. Compilers quickly adopted lots of great optimisations - they became a better centralised store of it than any individual assembly language programmer could possibly be, though there's always the chance that they miss a specific optimisation that happens to be crucial in a specific case - humans can sometimes nut it out and grope for something better while compilers just do as they've been told until someone feeds that experience back into them.

So, even if shifting and adding is still faster on some particular hardware, then the compiler writer's likely to have worked out exactly when it's both safe and beneficial.

Maintainability

If your hardware changes you can recompile and it'll look at the target CPU and make another best choice, whereas you're unlikely to ever want to revisit your "optimisations" or list which compilation environments should use multiplication and which should shift. Think of all the non-power-of-two bit-shifted "optimisations" written 10+ years ago that are now slowing down the code they're in as it runs on modern processors...!

Thankfully, good compilers like GCC can typically replace a series of bitshifts and arithmetic with a direct multiplication when any optimisation is enabled (i.e. ...main(...) { return (argc << 4) + (argc << 2) + argc; } -> imull $21, 8(%ebp), %eax) so a recompilation may help even without fixing the code, but that's not guaranteed.

Strange bitshifting code implementing multiplication or division is far less expressive of what you were conceptually trying to achieve, so other developers will be confused by that, and a confused programmer's more likely to introduce bugs or remove something essential in an effort to restore seeming sanity. If you only do non-obvious things when they're really tangibly beneficial, and then document them well (but don't document other stuff that's intuitive anyway), everyone will be happier.

General solutions versus partial solutions

If you have some extra knowledge, such as that your int will really only be storing values x, y and z, then you may be able to work out some instructions that work for those values and get you your result more quickly than when the compiler's doesn't have that insight and needs an implementation that works for all int values. For example, consider your question:

Multiplication and division can be achieved using bit operators...

You illustrate multiplication, but how about division?

int x;
x >> 1;   // divide by 2?

According to the C++ Standard 5.8:

-3- The value of E1 >> E2 is E1 right-shifted E2 bit positions. If E1 has an unsigned type or if E1 has a signed type and a nonnegative value, the value of the result is the integral part of the quotient of E1 divided by the quantity 2 raised to the power E2. If E1 has a signed type and a negative value, the resulting value is implementation-defined.

So, your bit shift has an implementation defined result when x is negative: it may not work the same way on different machines. But, / works far more predictably. (It may not be perfectly consistent either, as different machines may have different representations of negative numbers, and hence different ranges even when there are the same number of bits making up the representation.)

You may say "I don't care... that int is storing the age of the employee, it can never be negative". If you have that kind of special insight, then yes - your >> safe optimisation might be passed over by the compiler unless you explicitly do it in your code. But, it's risky and rarely useful as much of the time you won't have this kind of insight, and other programmers working on the same code won't know that you've bet the house on some unusual expectations of the data you'll be handling... what seems a totally safe change to them might backfire because of your "optimisation".

Is there any sort of input that can't be multiplied or divided in this way?

Yes... as mentioned above, negative numbers have implementation defined behaviour when "divided" by bit-shifting.

Another item to note - in settings.json I discovered if you don't use "commandline": "C:/Program Files/Git/bin/bash.exe"

and instead use: "commandline": "C:/Program Files/Git/git-bash.exe"

the Git shell will open up in an independent window outside of Windows Terminal instead of on a tab - which is not the desired behavior. In addition, the tab in Windows Terminal that opens will also need to be closed manually as it will display process exited information - [process exited with code 3221225786] etc.

Might save someone some headache

Do you just want to know how to write a line to a file? First, you need to open the file:

f = open("filename.txt", 'w')

Then, you need to write the string to the file:

f.write("dict = {'one': 1, 'two': 2}" + '\n')

You can repeat this for each line (the +'\n' adds a newline if you want it).

Finally, you need to close the file:

f.close()

You can also be slightly more clever and use with:

with open("filename.txt", 'w') as f:
   f.write("dict = {'one': 1, 'two': 2}" + '\n')
   ### repeat for all desired lines

This will automatically close the file, even if exceptions are raised.

But I suspect this is not what you are asking...

From the docs

In the Java programming language, every application must contain a main method whose signature is:

public static void main(String[] args)

The modifiers public and static can be written in either order (public static or static public), but the convention is to use public static as shown above. You can name the argument anything you want, but most programmers choose "args" or "argv".

As you say:

error: missing method body, or declare abstract public static void main(String[] args); ^ this is what i got after i added it after the class name

You probably haven't declared main with a body (as ';" would suggest in your error).

You need to have main method with a body, which means you need to add { and }:

public static void main(String[] args) {


}

Add it inside your class definition.

Although sometimes error messages are not very clear, most of the time they contain enough information to point to the issue. Worst case, you can search internet for the error message. Also, documentation can be really helpful.

I found these lists on Scott Hanselman's blog:

• What Great .NET Developers Ought To Know (More .NET Interview Questions)
• ASP.NET Interview Questions

Here are what I think are the most important questions from these posts divided into categories. I edited and re-arranged them. Fortunately for most of these questions there is already a good answer on Stack Overflow. Just follow the links (I will update them all ASAP).

Platform independent .NET questions

• What is the difference between a thread and a process?
• What is the difference between an EXE and a DLL?
• What is strong-typing versus weak-typing?
• What is the difference between a.Equals(b) and a == b?
• What is boxing?
• Is string a value type or a reference type?
• What is the Global Assembly Cache (GAC)? What problem does it solve?
• What is an Interface and how is it different from a Class?
• What is Reflection?
• Conceptually, what is the difference between early-binding and late-binding?
• When would using Assembly.LoadFrom or Assembly.LoadFile be appropriate?
• What is an Asssembly Qualified Name? Is it a filename? How is it different?
• How is a strongly-named assembly different from one that isn’t strongly-named?
• What does this do? sn -t foo.dll
• How does the generational garbage collector in the .NET CLR manage object lifetime? What is non-deterministic finalization?
• What is the difference between Finalize() and Dispose()? (external article)
• What is the difference between in-proc and out-of-proc? What technology enables out-of-proc communication in .NET?
• What is FullTrust? Do GAC’ed assemblies have FullTrust?
• What is the difference between Debug.Write and Trace.Write? When should each be used?
• What is the difference between a Debug and Release build? Is there a significant speed difference? Why or why not?
• What is the difference between: catch (Exception e) {throw e;} and catch (Exception e) {throw;} ?
• What is the difference between typeof(foo) and myFoo.GetType()?
• What is the purpose of XML Namespaces?
• What is the difference between an XML "Fragment" and an XML "Document"? (XML Basics)
• How would you validate XML using .NET?

ASP.NET

• What is a PostBack?
• What is ViewState? How is it encoded? Is it encrypted? Who uses ViewState? Why is it either useful or evil?
• What Session State providers are available in ASP.NET? What are the pros and cons of each?
• What is the OO relationship between an ASPX page and its CS/VB code behind file?
• How would one implement ASP.NET HTML output caching, caching outgoing versions of pages generated via all values of q= except where q=5 (as in http://localhost/page.aspx?q=5)?
• What are HttpHandlers?
• What are HttpModules?
• What is needed to configure a new extension for use in ASP.NET? For example, what if I wanted my system to serve ASPX files with a *.jsp extension?
• How do cookies work? What is an example of Cookie abuse?
• What kind of data is passed via HTTP Headers?
• How does IIS communicate at runtime with ASP.NET? Where is ASP.NET at runtime in the different versions of IIS (5 to 7)?

The headers you are trying to set are response headers. They have to be provided, in the response, by the server you are making the request to.

They have no place being set on the client. It would be pointless having a means to grant permissions if they could be granted by the site that wanted permission instead of the site that owned the data.

v$session_longops

If you look for sofar != totalwork you'll see ones that haven't completed, but the entries aren't removed when the operation completes so you can see a lot of history there too.

If you want to get the file names only without the rest of the commit message you can use:

git log --name-only --pretty=format: <branch name>

This can then be extended to use the various options that contain the file name:

git log --name-status --pretty=format: <branch name>

git log --stat --pretty=format: <branch name>

One thing to note when using this method is that there are some blank lines in the output that will have to be ignored. Using this can be useful if you'd like to see the files that have been changed on a local branch, but is not yet pushed to a remote branch and there is no guarantee the latest from the remote has already been pulled in. For example:

git log --name-only --pretty=format: my_local_branch --not origin/master

Would show all the files that have been changed on the local branch, but not yet merged to the master branch on the remote.

So, is that a behavior to expect, a bug

Truth be told I am not sure. It looks like parser is interpreting count not as a column name but a function and expects following parentheses. Looks like a bug or at least a serious limitation of the parser.

is there a canonical way to go around?

Some options have been already mentioned by Herman and mattinbits so here more SQLish approach from me:

import org.apache.spark.sql.functions.count

df.groupBy("x").agg(count("*").alias("cnt")).where($"cnt"  > 2)

the log will output to a new line every time it is called, in chrome if it's the same it will just keep a count (not sure about other browsers). You want to collect the number of stars per line then output that after the inner loop has run

for (var i = 5; i >= 1; i--) {_x000D_
     var ouput = "";_x000D_
     for (var j = i; j >= 1; j--) {_x000D_
         ouput += "*"_x000D_
     }_x000D_
     console.log(ouput);_x000D_
 }

I had this issue with Jenkins. The cause: I had renamed a module module to Module. I found out that git had gotten confused somehow and kept both module and Module directories, with the contents spread between both folders. The build.gradle was kept in module but the module's name was Module so it was unable to find the default configuration.

I fixed it by backing up the contents of Module, manually deleting module folder from the repo and restoring + pushing the lost files.

I found a solution using set-url which is concise and fairly easy to understand:

1. create a new repo at Github
2. cd into the existing repository on your local machine (if you haven't cloned it yet, then do this first)
3. git remote set-url origin https://github.com/user/example.git
4. git push -u origin master

$search_string = 4;
$original_array = [1,2,1,3,2,4,4,4,4,4,10];
$step1 = implode(",", $original_array); // convert original_array to string
$step2 = explode($search_string, $step1); // break step1 string into a new array using the search string as delimiter
$result = count($step2)-1; // count the number of elements in the resulting array, minus the first empty element
print_r($result); // result is 5

Swift 4.2 / 5

override func viewDidLoad() {
    super.viewDidLoad()
    NotificationCenter.default.addObserver(self, selector: #selector(willEnterForeground),
                                           name: Notification.Name.UIApplicationWillEnterForeground,
                                           object: nil)
}

@objc func willEnterForeground() {
   // do what's needed
}

Just use SORT_REGULAR option as second parameter.

$uniqueArray = array_unique($array, SORT_REGULAR);

If you use a stringbuilder, it would be efficient to initalize the length when you create the object. Length is going to be 2*lengthofString-1.

Or creating a char array and converting it back to the string would yield the same result.

Aand when you write some code please be sure that you write a few test cases as well, it will make your solution complete.

This worked for me. Each month on X axis

str_month_list = ['January','February','March','April','May','June','July','August','September','October','November','December']
ax.set_xticks(range(0,12))
ax.set_xticklabels(str_month_list)

This will return all the values matching your key valueTitle

subList.SelectMany(m => m).Where(kvp => kvp.Key == "valueTitle").Select(k => k.Value).ToList();

No, that's the standard way to do it. It shouldn't cause errors.

The middle one writes to the pipeline. Write-Host and Out-Host writes to the console. 'echo' is an alias for Write-Output which writes to the pipeline as well. The best way to write to the console would be using the Write-Host cmdlet.

When an object is written to the pipeline it can be consumed by other commands in the chain. For example:

"hello world" | Do-Something

but this won't work since Write-Host writes to the console, not to the pipeline (Do-Something will not get the string):

Write-Host "hello world" | Do-Something

use "temp" in lieu of "tmp"

"/temp/test.png"

it worked for me after i realized the tmp is a temporary folder that didn't exist on my computer, but my temp was my temporary folder

///

EDIT:

I also created a new folder "tmp" in my C: drive and everything worked perfectly. The book may have missed mentioning that small step

check out http://webchat.freenode.net/?channels=node.js to chat with some of the node.js community

Hello you can make use of input and output. Input let you to pass variable form parent to child. Output the same but from child to parent.

The easiest way is to pass "startdate" and "endDate" as input

<calendar [startDateInCalendar]="startDateInSearch" [endDateInCalendar]="endDateInSearch" ></calendar>

In this way you have your startdate and enddate directly in search page. Let me know if it works, or think another way. Thanks

Don't use a function that loops to split a string!, my function below will split a string very fast, with no looping!

Before you use my function, you need to set up a "helper" table, you only need to do this one time per database:

CREATE TABLE Numbers
(Number int  NOT NULL,
    CONSTRAINT PK_Numbers PRIMARY KEY CLUSTERED (Number ASC)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY]
) ON [PRIMARY]
DECLARE @x int
SET @x=0
WHILE @x<8000
BEGIN
    SET @x=@x+1
    INSERT INTO Numbers VALUES (@x)
END

use this function to split your string, which does not loop and is very fast:

CREATE FUNCTION [dbo].[FN_ListToTable]
(
     @SplitOn              char(1)              --REQUIRED, the character to split the @List string on
    ,@List                 varchar(8000)        --REQUIRED, the list to split apart
)
RETURNS
@ParsedList table
(
    ListValue varchar(500)
)
AS
BEGIN

/**
Takes the given @List string and splits it apart based on the given @SplitOn character.
A table is returned, one row per split item, with a column name "ListValue".
This function workes for fixed or variable lenght items.
Empty and null items will not be included in the results set.


Returns a table, one row per item in the list, with a column name "ListValue"

EXAMPLE:
----------
SELECT * FROM dbo.FN_ListToTable(',','1,12,123,1234,54321,6,A,*,|||,,,,B')

    returns:
        ListValue  
        -----------
        1
        12
        123
        1234
        54321
        6
        A
        *
        |||
        B

        (10 row(s) affected)

**/



----------------
--SINGLE QUERY-- --this will not return empty rows
----------------
INSERT INTO @ParsedList
        (ListValue)
    SELECT
        ListValue
        FROM (SELECT
                  LTRIM(RTRIM(SUBSTRING(List2, number+1, CHARINDEX(@SplitOn, List2, number+1)-number - 1))) AS ListValue
                  FROM (
                           SELECT @SplitOn + @List + @SplitOn AS List2
                       ) AS dt
                      INNER JOIN Numbers n ON n.Number < LEN(dt.List2)
                  WHERE SUBSTRING(List2, number, 1) = @SplitOn
             ) dt2
        WHERE ListValue IS NOT NULL AND ListValue!=''



RETURN

END --Function FN_ListToTable

you can use this function as a table in a join:

SELECT
    Col1, COl2, Col3...
    FROM  YourTable
        INNER JOIN FN_ListToTable(',',@YourString) s ON  YourTable.ID = s.ListValue

Here is your example:

Select * from sometable where tableid in(SELECT ListValue FROM dbo.FN_ListToTable(',',@Ids) s)

Typically, you need a server side scripting language like PHP to connect to MySQL, however, if you're just doing a quick mockup, then you can use http://www.mysqljs.com to connect to MySQL from Javascript using code as follows:

MySql.Execute(
    "mysql.yourhost.com", 
    "username", 
    "password", 
    "database", 
    "select * from Users", 
    function (data) {
        console.log(data)
});

It has to be mentioned that this is not a secure way of accessing MySql, and is only suitable for private demos, or scenarios where the source code cannot be accessed by end users, such as within Phonegap iOS apps.

As everyone here said, that's not possible directly.

The method I prefer and is rather clean, is to use an Object Mapper like AutoMapper.

It will do the task of copying properties from one instance to another (Not necessarily the same type) automatically.

to get the object you do not need to use cURL (you are loading another dll into memory and have another dependency, unless you really need curl I'd stick with built in php functions), you can use one simple php file_get_contents(url) function: http://il1.php.net/manual/en/function.file-get-contents.php

$unparsed_json = file_get_contents("api.php?action=getThreads&hash=123fajwersa&node_id=4&order_by=post_date&order=desc&limit=1&grab_content&content_limit=1");

$json_object = json_decode($unparsed_json);

then json_decode() parses JSON into a PHP object, or an array if you pass true to the second parameter. http://php.net/manual/en/function.json-decode.php

For example:

$json = '{"a":1,"b":2,"c":3,"d":4,"e":5}';

var_dump(json_decode($json));           // Object
var_dump(json_decode($json, true));     // Associative array

This has been discussed on SO multiple times. Here are a few links to get you started:

SO: Capturing image from webcam in java?

SO: What is the best method to capture images from a live video device for use by a Java-based application?

openCVF applet: http://www.colorfulwolf.com/blog/2011/07/05/accessing-the-webcam-from-inside-a-java-applet/

config: http://ganeshtiwaridotcomdotnp.blogspot.in/2011/12/opencv-javacv-eclipse-project.html

Sean it works fine i've just used this code

$content = preg_replace("/<img[^>]+\>/i", " ", $content); 
echo $content;

//the result it's only the plain text. It works!!!

Here's my current implementation:

$.liveClickHold = function(selector, fn) {

    $(selector).live("mousedown", function(evt) {

        var $this = $(this).data("mousedown", true);

        setTimeout(function() {
            if ($this.data("mousedown") === true) {
                fn(evt);
            }
        }, 500);

    });

    $(selector).live("mouseup", function(evt) {
        $(this).data("mousedown", false);
    });

}

For me the revelation came when I realise that they all work the same way: by running something once, storing the value they get, and then cough up that same stored value when referenced through Dependency Injection.

Say we have:

app.factory('a', fn);
app.service('b', fn);
app.provider('c', fn);

The difference between the three is that:

1. a's stored value comes from running fn , in other words: fn()
2. b’s stored value comes from newing fn, in other words: new fn()
3. c’s stored value comes from first getting an instance by newing fn, and then running a $get method of the instance

which means, there’s something like a cache object inside angular, whose value of each injection is only assigned once, when they've been injected the first time, and where:

cache.a = fn()
cache.b = new fn()
cache.c = (new fn()).$get()

This is why we use this in services, and define a this.$get in providers.

Hope this helps.

What I did is first check what are the running processes by

SELECT * FROM pg_stat_activity WHERE state = 'active';

Find the process you want to kill, then type:

SELECT pg_cancel_backend(<pid of the process>)

This basically "starts" a request to terminate gracefully, which may be satisfied after some time, though the query comes back immediately.

If the process cannot be killed, try:

SELECT pg_terminate_backend(<pid of the process>)

Have you used the variable sum anywhere else? That would explain it.

>>> sum = 1
>>> numbers = [1, 2, 3]
>>> numsum = (sum(numbers))
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: 'int' object is not callable

The name sum doesn't point to the function anymore now, it points to an integer.

Solution: Don't call your variable sum, call it total or something similar.

Cloud 9 IDE. Storage is cloud+local, it offers autocompletion, it provides explicit support for node.js development, offers real-time collaboration, and you get bash into the deal with all its most popular tools (gcc included). All without having to open anything other than your browser.

I think that's Pretty Awesome.

EDIT Q3 2013 I would also suggest JetBrains WebStorm. It has autocompletion and solid refactoring features for HTML5, CSS3, JS. And it is very responsive.

On Mac gcc is installed by default in /usr/local/bin

To run C:

gcc -o tutor tutor.c 

This is what worked for me. It can be found in git documentation here

If you are on your desired branch you can do this:

git fetch origin
# Fetches updates made to an online repository
git merge origin YOUR_BRANCH_NAME
# Merges updates made online with your local work

If you are using sakila-db from mysql website, It's very easy on the Linux platform just follow the below-mentioned steps, After downloading the zip file of sakila-db, extract it. Now you will have two files, one is sakila-schema.sql and the other one is sakila-data.sql.

1. Open terminal
2. Enter command mysql -u root -p < sakila-schema.sql
3. Enter command mysql -u root -p < sakila-data.sql
4. Now enter command mysql -u root -p and enter your password, now you have entered into mysql system with default database.
5. To use sakila database, use this command use sakila;
6. To see tables in sakila-db, use show tables command

Please take care that extracted files are present in home directory.

if(view instanceof B)

This will return true if view is an instance of B or the subclass A (or any subclass of B for that matter).

I do this frequently using Table Types to ensure more consistency and simplify code. You can't technically return "a table", but you can return a result set and using INSERT INTO .. EXEC ... syntax, you can clearly call a PROC and store the results into a table type. In the following example I'm actually passing a table into a PROC along with another param I need to add logic, then I'm effectively "returning a table" and can then work with that as a table variable.

/****** Check if my table type and/or proc exists and drop them ******/
IF EXISTS (SELECT * FROM sys.objects WHERE type = 'P' AND name = 'returnTableTypeData')
DROP PROCEDURE returnTableTypeData
GO
IF EXISTS (SELECT * FROM sys.types WHERE is_table_type = 1 AND name = 'myTableType')
DROP TYPE myTableType
GO

/****** Create the type that I'll pass into the proc and return from it ******/
CREATE TYPE [dbo].[myTableType] AS TABLE(
    [someInt] [int] NULL,
    [somenVarChar] [nvarchar](100) NULL
)
GO

CREATE PROC returnTableTypeData
    @someInputInt INT,
    @myInputTable myTableType READONLY --Must be readonly because
AS
BEGIN

    --Return the subset of data consistent with the type
    SELECT
        *
    FROM
        @myInputTable
    WHERE
        someInt < @someInputInt

END
GO


DECLARE @myInputTableOrig myTableType
DECLARE @myUpdatedTable myTableType

INSERT INTO @myInputTableOrig ( someInt,somenVarChar )
VALUES ( 0, N'Value 0' ), ( 1, N'Value 1' ), ( 2, N'Value 2' )

INSERT INTO @myUpdatedTable EXEC returnTableTypeData @someInputInt=1, @myInputTable=@myInputTableOrig

SELECT * FROM @myUpdatedTable


DROP PROCEDURE returnTableTypeData
GO
DROP TYPE myTableType
GO

Dim obj : Set obj = CreateObject("Scripting.FileSystemObject")
Dim outFile : Set outFile = obj.CreateTextFile("in.txt")
Dim inFile: Set inFile = obj.OpenTextFile("out.txt")

' Read file
Dim strRetVal : strRetVal = inFile.ReadAll
inFile.Close

' Write file
outFile.write (strRetVal)
outFile.Close

I think using okhttp is the easiest solution. Here you can see an example for POST method, sending a json, and with auth.

val url = "https://example.com/endpoint"

val client = OkHttpClient()

val JSON = MediaType.get("application/json; charset=utf-8")
val body = RequestBody.create(JSON, "{\"data\":\"$data\"}")
val request = Request.Builder()
        .addHeader("Authorization", "Bearer $token")
        .url(url)
        .post(body)
        .build()

val  response = client . newCall (request).execute()

println(response.request())
println(response.body()!!.string())

Remember to add this dependency to your project https://mvnrepository.com/artifact/com.squareup.okhttp3/okhttp

UPDATE: July 7th, 2019 I'm gonna give two examples using latest Kotlin (1.3.41), OkHttp (4.0.0) and Jackson (2.9.9).

UPDATE: January 25th, 2021 Everything is okay with the most updated versions.

<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.module/jackson-module-kotlin -->
        <dependency>
            <groupId>com.fasterxml.jackson.module</groupId>
            <artifactId>jackson-module-kotlin</artifactId>
            <version>2.12.1</version>
        </dependency>

<!-- https://mvnrepository.com/artifact/com.squareup.okhttp3/okhttp -->
        <dependency>
            <groupId>com.squareup.okhttp3</groupId>
            <artifactId>okhttp</artifactId>
            <version>4.9.0</version>
        </dependency>

Get Method

fun get() {
    val client = OkHttpClient()
    val url = URL("https://reqres.in/api/users?page=2")

    val request = Request.Builder()
            .url(url)
            .get()
            .build()

    val response = client.newCall(request).execute()

    val responseBody = response.body!!.string()

    //Response
    println("Response Body: " + responseBody)

    //we could use jackson if we got a JSON
    val mapperAll = ObjectMapper()
    val objData = mapperAll.readTree(responseBody)

    objData.get("data").forEachIndexed { index, jsonNode ->
        println("$index $jsonNode")
    }
}

POST Method

fun post() {
    val client = OkHttpClient()
    val url = URL("https://reqres.in/api/users")

    //just a string
    var jsonString = "{\"name\": \"Rolando\", \"job\": \"Fakeador\"}"

    //or using jackson
    val mapperAll = ObjectMapper()
    val jacksonObj = mapperAll.createObjectNode()
    jacksonObj.put("name", "Rolando")
    jacksonObj.put("job", "Fakeador")
    val jacksonString = jacksonObj.toString()

    val mediaType = "application/json; charset=utf-8".toMediaType()
    val body = jacksonString.toRequestBody(mediaType)

    val request = Request.Builder()
            .url(url)
            .post(body)
            .build()

    val response = client.newCall(request).execute()

    val responseBody = response.body!!.string()

    //Response
    println("Response Body: " + responseBody)

    //we could use jackson if we got a JSON
    val objData = mapperAll.readTree(responseBody)

    println("My name is " + objData.get("name").textValue() + ", and I'm a " + objData.get("job").textValue() + ".")
}

You are not allowed to have a CNAME record for the domain, as the CNAME is an aliasing feature that covers all data types (regardless of whether the client looks for MX, NS or SOA records). CNAMEs also always refer to a new name, not an ip-address, so there are actually two errors in the single line

@                        IN CNAME   88.198.38.XXX

Changing that CNAME to an A record should make it work, provided the ip-address you use is the correct one for your Heroku app.

The only correct way in DNS to make a simple domain.com name work in the browser, is to point the domain to an IP-adress with an A record.

It's too late to answer this question, but it could help for new readers, It seems version issues. I ran all these tests with spring 4.1.4 and found that the order of @RequestBody and @RequestParam doesn't matter.

1. same as your result
2. same as your result
3. gave body= "name=abc", and name = "abc"
4. Same as 3.
5. body ="name=abc", name = "xyz,abc"
6. same as 5.

Date.strptime(updated,"%a, %d %m %Y %H:%M:%S %Z")

Should be:

Date.strptime(updated, '%a, %d %b %Y %H:%M:%S %Z')

another way to do this is by going through the intermediate table. I'd express this within the Django ORM like this:

UserZone = User.zones.through

# for a single zone
users_in_zone = User.objects.filter(
  id__in=UserZone.objects.filter(zone=zone1).values('user'))

# for multiple zones
users_in_zones = User.objects.filter(
  id__in=UserZone.objects.filter(zone__in=[zone1, zone2, zone3]).values('user'))

it would be nice if it didn't need the .values('user') specified, but Django (version 3.0.7) seems to need it.

the above code will end up generating SQL that looks something like:

SELECT * FROM users WHERE id IN (SELECT user_id FROM userzones WHERE zone_id IN (1,2,3))

which is nice because it doesn't have any intermediate joins that could cause duplicate users to be returned

• Final class and private constructor (good but not essential)
• Public static methods

I need to do the same thing. I ended up with something similar to Kman

       static void ExcelToCSVCoversion(string sourceFile,  string targetFile)
    {
        Application rawData = new Application();

        try
        {
            Workbook workbook = rawData.Workbooks.Open(sourceFile);
            Worksheet ws = (Worksheet) workbook.Sheets[1];
            ws.SaveAs(targetFile, XlFileFormat.xlCSV);
            Marshal.ReleaseComObject(ws);
        }

        finally
        {
            rawData.DisplayAlerts = false;
            rawData.Quit();
            Marshal.ReleaseComObject(rawData);
        }


        Console.WriteLine();
        Console.WriteLine($"The excel file {sourceFile} has been converted into {targetFile} (CSV format).");
        Console.WriteLine();
    }

If there are multiple sheets this is lost in the conversion but you could loop over the number of sheets and save each one as csv.

Good answers from gdw2 and d5e5. To make it a little simpler here are the recommendations pulled together in a single series of commands:

sqlite> .mode csv
sqlite> .output test.csv
sqlite> select * from tbl1;
sqlite> .output stdout

cursor.fetchall() and list(cursor) are essentially the same. The different option is to not retrieve a list, and instead just loop over the bare cursor object:

for result in cursor:

This can be more efficient if the result set is large, as it doesn't have to fetch the entire result set and keep it all in memory; it can just incrementally get each item (or batch them in smaller batches).

I encountered this problem when attempint to run my web application as a fat jar rather than from within my IDE (IntelliJ).

This is what worked for me. Simply adding a default profile to the application.properties file.

spring.profiles.active=default

You don't have to use default if you have already set up other specific profiles (dev/test/prod). But if you haven't this is necessary to run the application as a fat jar.

For any OS

This helped me so I'll put it here, just in case. Once you are done with adding the rsa keys for both the accounts, add a config file in your .ssh directory for both the accounts (.ssh/config)

# First account
Host github.com-<FIRST_ACCOUNT_USERNAME_HERE>
   HostName github.com
   User git
   IdentityFile ~/.ssh/id_rsa_user1
   
# Second account
Host github.com-<SECOND_ACCOUNT_USERNAME_HERE>   
   HostName github.com
   User git
   IdentityFile ~/.ssh/id_rsa_user2

Make sure you use the correct usernames and RSA files. Next, you can open the terminal/git bash on the repository root and check which account you would be pushing from

git config user.email

Suppose this returns the first user email and you want to push from the second user. Change the local user.name and user.email :

git config user.name "SECOND_USER"
git config user.email "[email protected]"

(This won't change the global config and you can have the first user set up as the global user). Once done, you can confirm with git config user.email and it should return the email of the second user. You're all set to push to GitHub with the second user. The rest is all the same old git add , git commit and git push. To push from the first user, change the local user.name again and follow the same steps. Hope it helps :)

If the above steps are still not working for you, check to see if you have uploaded the RSA keys within GitHub portal. Refer to GitHub documentation:

Then, clear your ssh cached keys Reference

ssh-add -D

Then add you 2 ssh keys

ssh-add ~/.ssh/id_rsa_user1
ssh-add ~/.ssh/id_rsa_user2

Then type in your terminal:

ssh -T [email protected]<SECOND_ACCOUNT_USERNAME_HERE>

You should see the following output:

Hi <SECOND_USERNAME>! You've successfully authenticated, but GitHub does not provide shell access.

Then, assign the correct remote to your local repository. Make sure you put the same username as the one you gave in your .ssh/config file next to Host. In the following case [email protected]<SECOND_ACCOUNT_USERNAME_HERE>.

git remote rm origin
git remote add origin [email protected]<SECOND_ACCOUNT_USERNAME_HERE>:/your_username/your_repository.git

You can use display:inline-block.

This property allows a DOM element to have all the attributes of a block element, but keeping it inline. There's some drawbacks, but most of the time it's good enough. Why it's good and why it may not work for you.

EDIT: The only modern browser that has some problems with it is IE7. See Quirksmode.org

In the idle IDE there is Shell/Restart Shell. Cntrl-F6 will do it.

This is a big topic. The Spring reference doc devotes multiple chapters to it. I recommend reading the ones on Aspect-Oriented Programming and Transactions, as Spring's declarative transaction support uses AOP at its foundation.

But at a very high level, Spring creates proxies for classes that declare @Transactional on the class itself or on members. The proxy is mostly invisible at runtime. It provides a way for Spring to inject behaviors before, after, or around method calls into the object being proxied. Transaction management is just one example of the behaviors that can be hooked in. Security checks are another. And you can provide your own, too, for things like logging. So when you annotate a method with @Transactional, Spring dynamically creates a proxy that implements the same interface(s) as the class you're annotating. And when clients make calls into your object, the calls are intercepted and the behaviors injected via the proxy mechanism.

Transactions in EJB work similarly, by the way.

As you observed, through, the proxy mechanism only works when calls come in from some external object. When you make an internal call within the object, you're really making a call through the "this" reference, which bypasses the proxy. There are ways of working around that problem, however. I explain one approach in this forum post in which I use a BeanFactoryPostProcessor to inject an instance of the proxy into "self-referencing" classes at runtime. I save this reference to a member variable called "me". Then if I need to make internal calls that require a change in the transaction status of the thread, I direct the call through the proxy (e.g. "me.someMethod()".) The forum post explains in more detail. Note that the BeanFactoryPostProcessor code would be a little different now, as it was written back in the Spring 1.x timeframe. But hopefully it gives you an idea. I have an updated version that I could probably make available.

In the converter of the chosen solution, you should add values.Clone() otherwise the parameters in the command end null

public class YourConverter : IMultiValueConverter
{
    public object Convert(object[] values, ...)
    {
        return values.Clone();
    }

    ...
}

You can always refer to resources in your application directly by their JNDI name as configured in the container, but if you do so, essentially you are wiring the container-specific name into your code. This has some disadvantages, for example, if you'll ever want to change the name later for some reason, you'll need to update all the references in all your applications, and then rebuild and redeploy them.

<resource-ref> introduces another layer of indirection: you specify the name you want to use in the web.xml, and, depending on the container, provide a binding in a container-specific configuration file.

So here's what happens: let's say you want to lookup the java:comp/env/jdbc/primaryDB name. The container finds that web.xml has a <resource-ref> element for jdbc/primaryDB, so it will look into the container-specific configuration, that contains something similar to the following:

<resource-ref>
  <res-ref-name>jdbc/primaryDB</res-ref-name>
  <jndi-name>jdbc/PrimaryDBInTheContainer</jndi-name>
</resource-ref>

Finally, it returns the object registered under the name of jdbc/PrimaryDBInTheContainer.

The idea is that specifying resources in the web.xml has the advantage of separating the developer role from the deployer role. In other words, as a developer, you don't have to know what your required resources are actually called in production, and as the guy deploying the application, you will have a nice list of names to map to real resources.

Little known: the GO sql statement can take an integer for the number of times to repeat previous command.

So if you:

ALTER DATABASE [DATABASENAME] SET SINGLE_USER
GO

Then:

USE [DATABASENAME]
GO 2000

This will repeat the USE command 2000 times, force deadlock on all other connections, and take ownership of the single connection. (Giving your query window sole access to do as you wish.)

This is one I like

update: I didnt like the previous one because it didn't show files in the current directory, it only listed directories.

Example output for /var on ubuntu:

sudo du -hDaxd1 /var | sort -h | tail -n10

4.0K    /var/lock
4.0K    /var/run
4.0K    /var/www
12K     /var/spool
3.7M    /var/backups
33M     /var/log
45M     /var/webmin
231M    /var/cache
1.4G    /var/lib
1.7G    /var

A login page isn't the only part of a database-driven website that interacts with the database.

Any user-editable input which is used to construct a database query is a potential entry point for a SQL injection attack. The attacker may not necessarily login to the site as an admin through this attack, but can do other things. They can change data, change server settings, etc. depending on the nature of the application's interaction with the database.

Appending a ' to an input is usually a pretty good test to see if it generates an error or otherwise produces unexpected behavior on the site. It's an indication that the user input is being used to build a raw query and the developer didn't expect a single quote, which changes the query structure.

Keep in mind that one page may be secure against SQL injection while another one may not. The login page, for example, may be hardened against such attacks. But a different page elsewhere in the site might be wide open. So, for example, if one wanted to login as an admin then one can use the SQL injection on that other page to change the admin password. Then return to the perfectly non-SQL-injectable login page and login as the admin.

If you landed here just wondering how to limit to 2 decimal places I have a native javascript solution:

Javascript:

function limitDecimalPlaces(e, count) {
  if (e.target.value.indexOf('.') == -1) { return; }
  if ((e.target.value.length - e.target.value.indexOf('.')) > count) {
    e.target.value = parseFloat(e.target.value).toFixed(count);
  }
}

HTML:

<input type="number" oninput="limitDecimalPlaces(event, 2)" />

Note that this cannot AFAIK, defend against this chrome bug with the number input.

%RANDOM% gives you a random number between 0 and 32767.

Using an expression like SET /A test=%RANDOM% * 100 / 32768 + 1, you can change the range to anything you like (here the range is [1…100] instead of [0…32767]).

Yes, you can do this by creating a DoubleStream from the array, filtering out the negatives, and converting the stream back to an array. Here is an example:

double[] d = {8, 7, -6, 5, -4};
d = Arrays.stream(d).filter(x -> x > 0).toArray();
//d => [8, 7, 5]

If you want to filter a reference array that is not an Object[] you will need to use the toArray method which takes an IntFunction to get an array of the original type as the result:

String[] a = { "s", "", "1", "", "" };
a = Arrays.stream(a).filter(s -> !s.isEmpty()).toArray(String[]::new);

Had an issue while uploading an image and couldn't delete it and found a solution. gl hf

//C# .NET
var image = Image.FromFile(filePath);

image.Dispose(); // this removes all resources

//later...

File.Delete(filePath); //now works

The only way to do explicit scaling in CSS is to use tricks such as found here.

IE6 only, you could also use filters (check out PNGFix). But applying them automatically to the page will need javascript, though that javascript could be embedded in the CSS file.

If you are going to require javascript, then you might want to just have javascript fill in the missing value for the height by inspecting the image once the content has loaded. (Sorry I do not have a reference for this technique).

Finally, and pardon me for this soapbox, you might want to eschew IE6 support in this matter. You could add _width: auto after your width: 75px rule, so that IE6 at least renders the image reasonably, even if it is the wrong size.

I recommend the last solution simply because IE6 is on the way out: 20% and going down almost a percent a month. Also, I note that your site is recreational and in the UK. Both of these help the demographic lean to be away from IE6: IE6 usage drops nearly 40% during weekends (no citation sorry), and UK has a much lower IE6 demographic (again no citation, sorry).

Good luck!

You can pass the container by reference in order to modify it in the function. What other answers haven’t addressed is that std::vector does not have a push_front member function. You can use the insert() member function on vector for O(n) insertion:

void do_something(int el, std::vector<int> &arr){
    arr.insert(arr.begin(), el);
}

Or use std::deque instead for amortised O(1) insertion:

void do_something(int el, std::deque<int> &arr){
    arr.push_front(el);
}

An object of a class cannot be set to NULL; however, you can set a pointer (which contains a memory address of an object) to NULL.

Example of what you can't do which you are asking:

Cat c;
c = NULL;//Compiling error

Example of what you can do:

Cat c;
//Set p to hold the memory address of the object c
Cat *p = &c;
//Set p to hold NULL
p = NULL;

Link function only gets called once, so it would not directly do what you are expecting. You need to use angular $watch to watch a model variable.

This watch needs to be setup in the link function.

If you use isolated scope for directive then the scope would be

scope :{typeId:'@' }

In your link function then you add a watch like

link: function(scope, element, attrs) {
    scope.$watch("typeId",function(newValue,oldValue) {
        //This gets called when data changes.
    });
 }

If you are not using isolated scope use watch on some_prop

Just Close() all active/existing forms and the application should exit.

put them both inside a div with nowrap.

<div style="white-space:nowrap">
    <label for="id1">label1:</label>
    <input type="text" id="id1"/>
</div>

Our approach is simple, but it works! :)

When a user clicks our LogOut button, we simply open the login page (or any page) and close the page we are on...simulating opening in new browser window without any history to go back to.

<input id="btnLogout" onclick="logOut()" class="btn btn-sm btn-warning" value="Logout" type="button"/>
<script>
    function logOut() {
        window.close = function () { 
            window.open('Default.aspx', '_blank'); 
        };
    }
</script>

Use this:

String x = "00123".replaceAll("^0*", ""); // -> 123

You can change the level to OFF which should get rid of all logging. According to the log4j website, valid levels in order of importance are TRACE, DEBUG, INFO, WARN, ERROR, FATAL. There is one undocumented level called OFF which is a higher level than FATAL, and turns off all logging.

You can also create an extra root logger to log nothing (level OFF), so that you can switch root loggers easily. Here's a post to get you started on that.

You might also want to read the Log4J FAQ, because I think turning off all logging may not help. It will certainly not speed up your app that much, because logging code is executed anyway, up to the point where log4j decides that it doesn't need to log this entry.

As Tr?n Si Long suggested, use

String[] mStrings = new String[title.length];

And replace string concatation with proper parenthesis.

mStrings[i] = (urlbase + (title[i].replaceAll("[^a-zA-Z]", ""))).toLowerCase() + imgSel;

Try this. If it's problem due to concatation, it will be resolved with proper brackets. Hope it helps.

1. Always try sending headers in the mail function.
2. If you are sending mail through localhost then do the SMTP settings for sending mail.
3. If you are sending mail through a server then check the email sending feature is enabled on your server.

MySQL says:

All integer types can have an optional (nonstandard) attribute UNSIGNED. Unsigned type can be used to permit only nonnegative numbers in a column or when you need a larger upper numeric range for the column. For example, if an INT column is UNSIGNED, the size of the column's range is the same but its endpoints shift from -2147483648 and 2147483647 up to 0 and 4294967295.

When do I use it ?

Ask yourself this question: Will this field ever contain a negative value?
If the answer is no, then you want an UNSIGNED data type.

A common mistake is to use a primary key that is an auto-increment INT starting at zero, yet the type is SIGNED, in that case you’ll never touch any of the negative numbers and you are reducing the range of possible id's to half.

Add an nested document in solr very complex and nested data search also very complex. but Elastic Search easy to add nested document and search

As paxdiablo said you can use >& to redirect both stdout and stderr. However if you want them separated you can use the following:

(command > stdoutfile) >& stderrfile

...as indicated the above will redirect stdout to stdoutfile and stderr to stderrfile.

Try this with Swift 4

buttonSection.addTarget(self, action: #selector(actionWithParam(_:)), for: .touchUpInside)
@objc func actionWithParam(sender: UIButton){
    //...
}

buttonSection.addTarget(self, action: #selector(actionWithoutParam), for: .touchUpInside)
@objc func actionWithoutParam(){
    //...
}

-> is used to call a method, or access a property, on the object of a class

=> is used to assign values to the keys of an array

E.g.:

    $ages = array("Peter"=>32, "Quagmire"=>30, "Joe"=>34, 1=>2); 

And since PHP 7.4+ the operator => is used too for the added arrow functions, a more concise syntax for anonymous functions.

int RandU(int nMin, int nMax)
{
    return nMin + (int)((double)rand() / (RAND_MAX+1) * (nMax-nMin+1));
}

This is a mapping of 32768 integers to (nMax-nMin+1) integers. The mapping will be quite good if (nMax-nMin+1) is small (as in your requirement). Note however that if (nMax-nMin+1) is large, the mapping won't work (For example - you can't map 32768 values to 30000 values with equal probability). If such ranges are needed - you should use a 32-bit or 64-bit random source, instead of the 15-bit rand(), or ignore rand() results which are out-of-range.

To display dialog box, you can use the following code. This is to display a simple AlertDialog box with multiple check boxes:

AlertDialog.Builder alertDialog= new AlertDialog.Builder(MainActivity.this); .
            alertDialog.setTitle("this is a dialog box ");
            alertDialog.setPositiveButton("ok", new DialogInterface.OnClickListener() {

                @Override
                public void onClick(DialogInterface dialog, int which) {
                    // TODO Auto-generated method stub
                    Toast.makeText(getBaseContext(),"ok ive wrote this 'ok' here" ,Toast.LENGTH_SHORT).show();

                }
            });
            alertDialog.setNegativeButton("cancel", new DialogInterface.OnClickListener() {

                @Override
                public void onClick(DialogInterface dialog, int which) {
                    // TODO Auto-generated method stub
                        Toast.makeText(getBaseContext(), "cancel ' comment same as ok'", Toast.LENGTH_SHORT).show();


                }
            });
            alertDialog.setMultiChoiceItems(items, checkedItems, new DialogInterface.OnMultiChoiceClickListener() {

                @Override
                public void onClick(DialogInterface dialog, int which, boolean isChecked) {
                    // TODO Auto-generated method stub
                    Toast.makeText(getBaseContext(), items[which] +(isChecked?"clicked'again i've wrrten this click'":"unchecked"),Toast.LENGTH_SHORT).show();

                }
            });
            alertDialog.show();

Heading

Whereas if you are using the showDialog function to display different dialog box or anything as per the arguments passed, you can create a self function and can call it under the onClickListener() function. Something like:

 public CharSequence[] items={"google","Apple","Kaye"};
public boolean[] checkedItems=new boolean[items.length];
Button bt;
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    bt=(Button) findViewById(R.id.bt);
    bt.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            // TODO Auto-generated method stub
            display(0);             
        }       
    });
}

and add the code of dialog box given above in the function definition.

Perhaps I am misunderstanding the question, by why exactly would you not want to use atoi? I see no point in reinventing the wheel.

Am I just missing the point here?

[SOLVED] How I made my app run again after I had changed my username on same Windows 10 machine

In Android Studio, File > Project Structure > app > clicked “+” to add new configuration "config" File > Project Structure > app > Signing

In Flavors tab > Signing box, chose new "config" entry File > Project Structure > app > Flavors

This reconfigured the app. Closed & restarted Studio

Clicked Build > Rebuild Project

The app added and showed this automatically: build.gradle

When I tested the app on a cell phone, Studio asked to reinstall the app with this new configuration. App runs as before!

DynaMike

Just for sake of completeness, you can also use the same technique above with excel tables.

In the example below, I'm looking of a text in any cell of a Excel Table named "tblConfig", place in the sheet named Config that normally is set to be hidden. I'm accepting the defaults of the Find method.

Dim list As ListObject
Dim config As Worksheet
Dim cell as Range


Set config = Sheets("Config")
Set list = config.ListObjects("tblConfig")

'search in any cell of the data range of excel table
Set cell = list.DataBodyRange.Find(searchTerm)

If cell Is Nothing Then
    'when information is not found
Else
    'when information is found
End If

You can print in simple way.

Use below to print 2D array

int[][] array = new int[rows][columns];
System.out.println(Arrays.deepToString(array));

Use below to print 1D array

int[] array = new int[size];
System.out.println(Arrays.toString(array));

I had come across this issue for a complex model with several nested objects. A good example of what I was looking at doing would be this: Lets say you have a polaroid of yourself. And that picture is then put into a trunk of a car. The car is inside of a large crate. The crate is in the hold of a large ship with many other crates. I had to search the hold, look in the crates, check the trunk, and then look for an existing picture of me.

I could not find any good solutions online to use, and using .filter() only works on arrays. Most solutions suggested just checking to see if model["yourpicture"] existed. This was very undesirable because, from the example, that would only search the hold of the ship and I needed a way to get them from farther down the rabbit hole.

This is the recursive solution I made. In comments, I confirmed from T.J. Crowder that a recursive version would be required. I thought I would share it in case anyone came across a similar complex situation.

function ContainsKeyValue( obj, key, value ){
    if( obj[key] === value ) return true;
    for( all in obj )
    {
        if( obj[all] != null && obj[all][key] === value ){
            return true;
        }
        if( typeof obj[all] == "object" && obj[all]!= null ){
            var found = ContainsKeyValue( obj[all], key, value );
            if( found == true ) return true;
        }
    }
    return false;
}

This will start from a given object inside of the graph, and recurse down any objects found. I use it like this:

var liveData = [];
for( var items in viewmodel.Crates )
{
    if( ContainsKeyValue( viewmodel.Crates[items], "PictureId", 6 ) === true )
    {
        liveData.push( viewmodel.Crates[items] );
    }
}

Which will produce an array of the Crates which contained my picture.

I had a problem that was similar to this where my working directory was ahead of origin by X commits but the git pull was resulting in Everything up-to-date. I did manage to fix it by following this advice. I'm posting this here in case it helps someone else with a similar problem.

The basic fix is as follows:

$ git push {remote} {localbranch}:{remotebranch}

Where the words in brackets should be replaced by your remote name, your local branch name and your remote branch name. e.g.

$ git push origin master:master

If you have less than 4 rows, you can use the head function ( head(data, 4) or head(data, n=4)) and it works like a charm. But, assume we have the following dataset with 15 rows

>data <- data <- read.csv("./data.csv", sep = ";", header=TRUE)

>data
 LungCap Age Height Smoke Gender Caesarean
1    6.475   6   62.1    no   male        no
2   10.125  18   74.7   yes female        no
3    9.550  16   69.7    no female       yes
4   11.125  14   71.0    no   male        no
5    4.800   5   56.9    no   male        no
6    6.225  11   58.7    no female        no
7    4.950   8   63.3    no   male       yes
8    7.325  11   70.4    no  male         no
9    8.875  15   70.5    no   male        no
10   6.800  11   59.2    no   male        no
11   6.900  12   59.3    no   male        no
12   6.100  13   59.4    no   male        no
13   6.110  14   59.5    no   male        no
14   6.120  15   59.6    no   male        no
15   6.130  16   59.7    no   male        no

Let's say, you want to select the first 10 rows. The easiest way to do it would be data[1:10, ].

> data[1:10,]
   LungCap Age Height Smoke Gender Caesarean
1    6.475   6   62.1    no   male        no
2   10.125  18   74.7   yes female        no
3    9.550  16   69.7    no female       yes
4   11.125  14   71.0    no   male        no
5    4.800   5   56.9    no   male        no
6    6.225  11   58.7    no female        no
7    4.950   8   63.3    no   male       yes
8    7.325  11   70.4    no  male         no
9    8.875  15   70.5    no   male        no
10   6.800  11   59.2    no   male        no

However, let's say you try to retrieve the first 19 rows and see the what happens - you will have missing values

> data[1:19,]
     LungCap Age Height Smoke Gender Caesarean
1      6.475   6   62.1    no   male        no
2     10.125  18   74.7   yes female        no
3      9.550  16   69.7    no female       yes
4     11.125  14   71.0    no   male        no
5      4.800   5   56.9    no   male        no
6      6.225  11   58.7    no female        no
7      4.950   8   63.3    no   male       yes
8      7.325  11   70.4    no  male         no
9      8.875  15   70.5    no   male        no
10     6.800  11   59.2    no   male        no
11     6.900  12   59.3    no   male        no
12     6.100  13   59.4    no   male        no
13     6.110  14   59.5    no   male        no
14     6.120  15   59.6    no   male        no
15     6.130  16   59.7    no   male        no
NA        NA  NA     NA  <NA>   <NA>      <NA>
NA.1      NA  NA     NA  <NA>   <NA>      <NA>
NA.2      NA  NA     NA  <NA>   <NA>      <NA>
NA.3      NA  NA     NA  <NA>   <NA>      <NA>

and with the head() function,

> head(data, 19) # or head(data, n=19)
   LungCap Age Height Smoke Gender Caesarean
1    6.475   6   62.1    no   male        no
2   10.125  18   74.7   yes female        no
3    9.550  16   69.7    no female       yes
4   11.125  14   71.0    no   male        no
5    4.800   5   56.9    no   male        no
6    6.225  11   58.7    no female        no
7    4.950   8   63.3    no   male       yes
8    7.325  11   70.4    no  male         no
9    8.875  15   70.5    no   male        no
10   6.800  11   59.2    no   male        no
11   6.900  12   59.3    no   male        no
12   6.100  13   59.4    no   male        no
13   6.110  14   59.5    no   male        no
14   6.120  15   59.6    no   male        no
15   6.130  16   59.7    no   male        no

Hope this help!

This is basically the same answer provided by Evert, but extended to show-off some cool options of fill_between

from matplotlib import pyplot as pl
import numpy as np

pl.clf()
pl.hold(1)

x = np.linspace(0, 30, 100)
y = np.sin(x) * 0.5
pl.plot(x, y, '-k')


x = np.linspace(0, 30, 30)
y = np.sin(x/6*np.pi)
error = np.random.normal(0.1, 0.02, size=y.shape) +.1
y += np.random.normal(0, 0.1, size=y.shape)

pl.plot(x, y, 'k', color='#CC4F1B')
pl.fill_between(x, y-error, y+error,
    alpha=0.5, edgecolor='#CC4F1B', facecolor='#FF9848')

y = np.cos(x/6*np.pi)    
error = np.random.rand(len(y)) * 0.5
y += np.random.normal(0, 0.1, size=y.shape)
pl.plot(x, y, 'k', color='#1B2ACC')
pl.fill_between(x, y-error, y+error,
    alpha=0.2, edgecolor='#1B2ACC', facecolor='#089FFF',
    linewidth=4, linestyle='dashdot', antialiased=True)



y = np.cos(x/6*np.pi)  + np.sin(x/3*np.pi)  
error = np.random.rand(len(y)) * 0.5
y += np.random.normal(0, 0.1, size=y.shape)
pl.plot(x, y, 'k', color='#3F7F4C')
pl.fill_between(x, y-error, y+error,
    alpha=1, edgecolor='#3F7F4C', facecolor='#7EFF99',
    linewidth=0)



pl.show()

To escape a character in sql you can use !:

EXAMPLE - USING ESCAPE CHARACTERS

It is important to understand how to "Escape Characters" when pattern matching. These examples deal specifically with escaping characters in Oracle.

Let's say you wanted to search for a % or a _ character in the SQL LIKE condition. You can do this using an Escape character.

Please note that you can only define an escape character as a single character (length of 1).

For example:

SELECT *
FROM suppliers
WHERE supplier_name LIKE '!%' escape '!';

This SQL LIKE condition example identifies the ! character as an escape character. This statement will return all suppliers whose name is %.

Here is another more complicated example using escape characters in the SQL LIKE condition.

SELECT *
FROM suppliers
WHERE supplier_name LIKE 'H%!%' escape '!';

This SQL LIKE condition example returns all suppliers whose name starts with H and ends in %. For example, it would return a value such as 'Hello%'.

You can also use the escape character with the _ character in the SQL LIKE condition.

For example:

SELECT *
FROM suppliers
WHERE supplier_name LIKE 'H%!_' escape '!';

This SQL LIKE condition example returns all suppliers whose name starts with H and ends in _ . For example, it would return a value such as 'Hello_'.

Reference: sql/like

git config --global diff.tool vimdiff
git config --global difftool.prompt false

Typing git difftool yields the expected behavior.

Navigation commands,

• :qa in vim cycles to the next file in the changeset without saving anything.

Aliasing (example)

git config --global alias.d difftool

.. will let you type git d to invoke vimdiff.

Advanced use-cases,

• By default, git calls vimdiff with the -R option. You can override it with git config --global difftool.vimdiff.cmd 'vimdiff "$LOCAL" "$REMOTE"'. That will open vimdiff in writeable mode which allows edits while diffing.
• :wq in vim cycles to the next file in the changeset with changes saved.

This is to answer the part:

I was trying to understand whether dimension tables can be fact table as well or not?

The short answer (INMO) is No.That is because the 2 types of tables are created for different reasons. However, from a database design perspective, a dimension table could have a parent table as the case with the fact table which always has a dimension table (or more) as a parent. Also, fact tables may be aggregated, whereas Dimension tables are not aggregated. Another reason is that fact tables are not supposed to be updated in place whereas Dimension tables could be updated in place in some cases.

More details:

Fact and dimension tables appear in a what is commonly known as a Star Schema. A primary purpose of star schema is to simplify a complex normalized set of tables and consolidate data (possibly from different systems) into one database structure that can be queried in a very efficient way.

On its simplest form, it contains a fact table (Example: StoreSales) and a one or more dimension tables. Each Dimension entry has 0,1 or more fact tables associated with it (Example of dimension tables: Geography, Item, Supplier, Customer, Time, etc.). It would be valid also for the dimension to have a parent, in which case the model is of type "Snow Flake". However, designers attempt to avoid this kind of design since it causes more joins that slow performance. In the example of StoreSales, The Geography dimension could be composed of the columns (GeoID, ContenentName, CountryName, StateProvName, CityName, StartDate, EndDate)

In a Snow Flakes model, you could have 2 normalized tables for Geo information, namely: Content Table, Country Table.

You can find plenty of examples on Star Schema. Also, check this out to see an alternative view on the star schema model Inmon vs. Kimball. Kimbal has a good forum you may also want to check out here: Kimball Forum.

Edit: To answer comment about examples for 4NF:

• Example for a fact table violating 4NF:

Sales Fact (ID, BranchID, SalesPersonID, ItemID, Amount, TimeID)

• Example for a fact table not violating 4NF:

AggregatedSales (BranchID, TotalAmount)

Here the relation is in 4NF

The last example is rather uncommon.

Ok, yup you use the timeout command to sleep. But to do the whole process silently, it's not possible with cmd/batch. One of the ways is to create a VBScript that will run the Batch File without opening/showing any window. And here is the script:

Set WshShell = CreateObject("WScript.Shell")
WshShell.Run chr(34) & "PATH OF BATCH FILE WITH QUOTATION MARKS" & Chr(34), 0
Set WshShell = Nothing

Copy and paste the above code on notepad and save it as Anyname.**vbs ** An example of the *"PATH OF BATCH FILE WITH QUOTATION MARKS" * might be: "C:\ExampleFolder\MyBatchFile.bat"

Google is using this to detect whether the device is online or in captive portal.

Shill, the connection manager for Chromium OS, attempts to detect services that are within a captive portal whenever a service transitions to the ready state. This determination of being in a captive portal or being online is done by attempting to retrieve the webpage http://clients3.google.com/generate_204. This well known URL is known to return an empty page with an HTTP status 204. If for any reason the web page is not returned, or an HTTP response other than 204 is received, then shill marks the service as being in the portal state.

Here is the relevant explanation from the Google Chrome Privacy Whitepaper:

In the event that Chrome detects SSL connection timeouts, certificate errors, or other network issues that might be caused by a captive portal (a hotel's WiFi network, for instance), Chrome will make a cookieless request to http://www.gstatic.com/generate_204 and check the response code. If that request is redirected, Chrome will open the redirect target in a new tab on the assumption that it's a login page. Requests to the captive portal detection page are not logged.

More info: http://www.chromium.org/chromium-os/chromiumos-design-docs/network-portal-detection

For angular 4+ versions you can try

<input [readonly]="true" type="date" name="date" />

interestingly in my git-bash on windows sed "" did the trick already:

$ echo -e "abc\r" >tst.txt
$ file tst.txt
tst.txt: ASCII text, with CRLF line terminators
$ sed -i "" tst.txt
$ file tst.txt
tst.txt: ASCII text

My guess is that sed ignores them when reading lines from input and always writes unix line endings on output.

You can find using CLI ng --version

As I am using

angular-cli: 1.0.0-beta.28.3

node: 6.10.1

os: darwin x64

We had the same problem discussed here.

We have a Redis hash, a key to hash entries (name/value pairs), and we needed to hold individual expiration times on each hash entry.

We implemented this by adding n bytes of prefix data containing encoded expiration information when we write the hash entry values, we also set the key to expire at the time contained in the value being written.

Then, on read, we decode the prefix and check for expiration. This is additional overhead, however, the reads are still O(n) and the entire key will expire when the last hash entry has expired.

Cleartext is any transmitted or stored information that is not encrypted or meant to be encrypted.

When an app communicates with servers using a cleartext network traffic, such as HTTP (not https), it could raise the risk of hacking and tampering of content. Third parties can inject unauthorized data or leak information about the users. That is why developers are encouraged to secure traffic only, such as HTTPS. Here is the implementation and the reference of how to resolve this problem.

In case you want jquery validate to auto pick validations on dynamically added items, you can simply remove and add validation on the whole form like below

//remove validations on entire form
$("#yourFormId")
    .removeData("validator")
    .removeData("unobtrusiveValidation");

//Simply add it again
$.validator
    .unobtrusive
    .parse("#yourFormId");

Using the jQuery timer will also allow you to have a name associated with the timers that are attached to the object. So you could attach several timers to an object and stop any one of them.

$("#myid").oneTime(1000, "mytimer1" function() {
  $("#something").hide();
}).oneTime(2000, "mytimer2" function() {
  $("#somethingelse").show();  
});

$("#myid").stopTime("mytimer2");

The eval function (and its relatives, Function, setTimeout, and setInterval) provide access to the JavaScript compiler. This is sometimes necessary, but in most cases it indicates the presence of extremely bad coding. The eval function is the most misused feature of JavaScript.

http://www.jslint.com/lint.html

Dim myStringArray() As String
*code*
redim myStringArray(size_of_your_array)

Then you can do something static like this:

myStringArray = { item_1, item_2, ... }

Or something iterative like this:

Dim x
For x = 0 To size_of_your_array
    myStringArray(x) = data_source(x).Name
Next x

This is the code I use:

var ifrm = document.getElementById('myFrame');
ifrm = (ifrm.contentWindow) ? ifrm.contentWindow : (ifrm.contentDocument.document) ? ifrm.contentDocument.document : ifrm.contentDocument;
ifrm.document.open();
ifrm.document.write('Hello World!');
ifrm.document.close();

contentWindow vs. contentDocument

• IE (Win) and Mozilla (1.7) will return the window object inside the iframe with oIFrame.contentWindow.
• Safari (1.2.4) doesn't understand that property, but does have oIframe.contentDocument, which points to the document object inside the iframe.
• To make it even more complicated, Opera 7 uses oIframe.contentDocument, but it points to the window object of the iframe. Because Safari has no way to directly access the window object of an iframe element via standard DOM (or does it?), our fully modern-cross-browser-compatible code will only be able to access the document within the iframe.

We can install multiple versions of Java Development kits on the same machine using SDKMan.

Some points about SDKMan are as following:

1. SDKMan is free to use and it is developed by the open source community.
2. SDKMan is written in bash and it only requires curl and zip/unzip programs to be present on your system.
3. SDKMan can install around 29 Software Development Kits for the JVM such as Java, Groovy, Scala, Kotlin and Ceylon. Ant, Gradle, Grails, Maven, SBT, Spark, Spring Boot, Vert.x.
4. We do not need to worry about setting the _HOME and PATH environment variables because SDKMan handles it automatically.

SDKMan can run on any UNIX based platforms such as Mac OSX, Linux, Cygwin, Solaris and FreeBSD and we can install it using following commands:

$ curl -s "https://get.sdkman.io" | bash  
$ source "$HOME/.sdkman/bin/sdkman-init.sh" 

Because SDKMan is written in bash and only requires curl and zip/unzip to be present on your system. You can install SDKMan on windows as well either by first installing Cygwin or Git Bash for Windows environment and then running above commands.

Command sdk list java will give us a list of java versions which we can install using SDKMan.

Installing Java 8

$ sdk install java 8.0.201-oracle

Installing Java 9

$ sdk install java 9.0.4-open 

Installing Java 11

$ sdk install java 11.0.2-open

Uninstalling a Java version

In case you want to uninstall any JDK version e.g., 11.0.2-open you can do that as follows:

$ sdk uninstall java 11.0.2-open

Switching current Java version

If you want to activate one version of JDK for all terminals and applications, you can use the command

sdk default java <your-java_version>

Above commands will also update the PATH and JAVA_HOME variables automatically. You can read more on my article How to Install Multiple Versions of Java on the Same Machine.

It's often clearer to separate the two actions git pull does. The first thing it does is update the local tracking branc that corresponds to the remote branch. This can be done with git fetch. The second is that it then merges in changes, which can of course be done with git merge, though other options such as git rebase are occasionally useful.

You need to create a new Font

mainForm.lblName.Font = new Font("Arial", mainForm.lblName.Font.Size);

If you really gotta be fast (not that I believe you do):

char[] chars = sourceDate.toCharArray();
chars[10] = ' ';
String targetDate = new String(chars, 0, 19);

You need to tell scp where to send the file. In your command that is not working:

scp C:\Users\Admin\Desktop\WMU\5260\A2.c ~

You have not mentioned a remote server. scp uses : to delimit the host and path, so it thinks you have asked it to download a file at the path \Users\Admin\Desktop\WMU\5260\A2.c from the host C to your local home directory.

The correct upload command, based on your comments, should be something like:

C:\> pscp C:\Users\Admin\Desktop\WMU\5260\A2.c [email protected]:

If you are running the command from your home directory, you can use a relative path:

C:\Users\Admin> pscp Desktop\WMU\5260\A2.c [email protected]:

You can also mention the directory where you want to this folder to be downloaded to at the remote server. i.e by just adding a path to the folder as below:

C:/> pscp C:\Users\Admin\Desktop\WMU\5260\A2.c [email protected]:/home/path_to_the_folder/

Most of the answers are outdated now. Better if you import tqdm correctly.

from tqdm import tqdm_notebook as tqdm

If your array is static or global it's initialized to zero before main() starts. That would be the most efficient option.

In web application a timer will be the best approach.

Just fyi, in desktop application I use this instead, inside an async method.

... 
Await Task.Run(Sub()
    System.Threading.Thread.Sleep(5000)
End Sub)
...

It work for me, importantly it doesn't freeze entire screen. But again this is on desktop, i try in web application it does freeze.

It seems you now do not need to reverse geocode and now get the address directly from ClientLocation:

google.loader.ClientLocation.address.city

If the object was recently created, you can check the Schema Changes History report, within the SQL Server Management Studio, which "provides a history of all committed DDL statement executions within the Database recorded by the default trace":

You then can search for the create statements of the objects. Among all the information displayed, there is the login name of whom executed the DDL statement.

When you call a class member, Python automatically uses a reference to the object as the first parameter. The variable self actually means nothing, it's just a coding convention. You could call it gargaloo if you wanted. That said, the call to method_two would raise a TypeError, because Python is automatically trying to pass a parameter (the reference to its parent object) to a method that was defined as having no parameters.

To actually make it work, you could append this to your class definition:

method_two = staticmethod(method_two)

or you could use the @staticmethod function decorator.

Whenever you make a request to the server the session timeout resets. So you can just make an ajax call to an empty HTTP handler on the server, but make sure the handler's cache is disabled, otherwise the browser will cache your handler and won't make a new request.

KeepSessionAlive.ashx.cs

public class KeepSessionAlive : IHttpHandler, IRequiresSessionState
    {

        public void ProcessRequest(HttpContext context)
        {
            context.Response.Cache.SetCacheability(HttpCacheability.NoCache);
            context.Response.Cache.SetExpires(DateTime.UtcNow.AddMinutes(-1));
            context.Response.Cache.SetNoStore();
            context.Response.Cache.SetNoServerCaching();
        }
    }

.JS:

window.onload = function () {
        setInterval("KeepSessionAlive()", 60000)
}

 function KeepSessionAlive() {
 url = "/KeepSessionAlive.ashx?";
        var xmlHttp = new XMLHttpRequest();
        xmlHttp.open("GET", url, true);
        xmlHttp.send();
        }

@veggerby - There is no need for the overhead of storing variables in the session. Just preforming a request to the server is enough.

I'm not sure exactly why you're trying to mark the fields dirty, but I found myself in a similar situation because I wanted validation errors to show up when somebody attempted to submit an invalid form. I ended up using jQuery to remove the .ng-pristine class tags and add .ng-dirty class tags to the appropriate fields. For example:

$scope.submit = function() {
    // `formName` is the value of the `name` attribute on your `form` tag
    if (this.formName.$invalid)
    {
        $('.ng-invalid:not("form")').each(function() {
            $(this).removeClass('ng-pristine').addClass('ng-dirty');
        });
        // the form element itself is index zero, so the first input is typically at index 1
        $('.ng-invalid')[1].focus();
    }
}

ID3.NET implemented ID3v1.x and ID3v2.3 and supports read/write operations on the ID3 section in MP3 files. There's also a NuGet package available.

The best thing to keep in mind is to keep track of the references to your objects. It is very easy to end up with hanging references to objects that you don't care about anymore. If you are not going to use something anymore, get rid of it.

Get used to using a cache provider with sliding expirations, so that if something isn't referenced for a desired time window it is dereferenced and cleaned up. But if it is being accessed a lot it will say in memory.

You can use the * selector to change the child styles back to the default

example

#parent {
    white-space: pre-wrap;
}

#parent * {
    white-space: initial;
}

StringBuilder sb = new StringBuilder();
sb.append("abcdef");
sb.deleteCharAt(sb.length() - 1);
assertEquals("abcde",sb.toString());
// true

You need to use Integer.parseInt(String)

private void jTextField2MouseClicked(java.awt.event.MouseEvent evt) {
        if(evt.getSource()==jTextField2){
            int jml = Integer.parseInt(jTextField3.getText());
            jTextField1.setText(numberToWord(jml));

        }
    }

In general Shift + Tab works for any environment.

In the "Repeat Task every:" just type 2 minutes instead of choosing from the dropdown list.

This won't really work at all. There is no date type in JSON. I would recommend to serialize to ISO8601 back and forth (for format agnostics and JS compat). Consider that you have to know which fields contain dates.

As an add on to the other answers, I added an alias to do it all in one step, with a more familiar *nix move command feel. Argument 1 is the old tag name, argument 2 is the new tag name.

[alias]
    renameTag = "!sh -c 'set -e;git tag $2 $1; git tag -d $1;git push origin :refs/tags/$1;git push --tags' -"

Usage:

git renametag old new

Use mysql-connector-python. I prefer to install it with pip from PyPI:

pip install --allow-external mysql-connector-python mysql-connector-python

Have a look at its documentation and examples.

If you are going to use pooling make sure your database has enough connections available as the default settings may not be enough.

for HttpClient always use HttpRequestInterceptor for example

httclient.addRequestInterceptor(new HttpRequestInterceptor() {
    public void process(HttpRequest arg0, HttpContext context) throws HttpException, IOException {
        AuthState state = (AuthState) context.getAttribute(ClientContext.TARGET_AUTH_STATE);
        if (state.getAuthScheme() == null) {
            BasicScheme scheme = new BasicScheme();
            CredentialsProvider credentialsProvider = (CredentialsProvider) context.getAttribute(ClientContext.CREDS_PROVIDER);
            Credentials credentials = credentialsProvider.getCredentials(AuthScope.ANY);
            if (credentials == null) {
                System.out.println("Credential >>" + credentials);
                throw new HttpException();
            }
            state.setAuthScope(AuthScope.ANY);
            state.setAuthScheme(scheme);
            state.setCredentials(credentials);
        }
    }
}, 0);

#Using a text file for the example
with open("yourFile.txt","r") as f:
    text = f.readlines()
for line in text:
    print line

• Open your file for reading (r)
• Read the whole file and save each line into a list (text)
• Loop through the list printing each line.

If you want, for example, to check a specific line for a length greater than 10, work with what you already have available.

for line in text:
    if len(line) > 10:
        print line

You can use .concat method to create copy of your array with new data:

this.setState({ myArray: this.state.myArray.concat('new value') })

But beware of special behaviour of .concat method when passing arrays - [1, 2].concat(['foo', 3], 'bar') will result in [1, 2, 'foo', 3, 'bar'].

Simple Steps:

Step 1: Click on Create new File

Step 2: Enter the folder name that you want, then press /

Step 3: Enter a sample file name. You must enter some text.

Step 4: Click Commit new file to create the folder

Step 5: Your folder is created!

Try to invert #one and #two. Have a look to this fiddle : http://jsfiddle.net/hu2pk/3/

Update

In SVG, z-index is defined by the order the element appears in the document. You can have a look to this page too if you want : https://stackoverflow.com/a/482147/1932751

You should avoid using global vars, and prefer using .data()

So, you'd do:

jQuery('#id').click(function(){
  $(this).data('clicked', true);
});

Then, to check if it was clicked and perform an action:

if(jQuery('#id').data('clicked')) {
    //clicked element, do-some-stuff
} else {
    //run function2
}

Hope this helps. Cheers

This means that a TCP RST was received and the connection is now closed. This occurs when a packet is sent from your end of the connection but the other end does not recognize the connection; it will send back a packet with the RST bit set in order to forcibly close the connection.

This can happen if the other side crashes and then comes back up or if it calls close() on the socket while there is data from you in transit, and is an indication to you that some of the data that you previously sent may not have been received.

It is up to you whether that is an error; if the information you were sending was only for the benefit of the remote client then it may not matter that any final data may have been lost. However you should close the socket and free up any other resources associated with the connection.

Lexical Analyzer takes a sequence of characters identifies a lexeme that matches the regular expression and further categorizes it to token. Thus, a Lexeme is matched string and a Token name is the category of that lexeme.

For example, consider below regular expression for an identifier with input "int foo, bar;"

letter(letter|digit|_)*

Here, foo and bar match the regular expression thus are both lexemes but are categorized as one token ID i.e identifier.

Also note, next phase i.e syntax analyzer need not have to know about lexeme but a token.

Nobody addressed the actual problem which was happening, to explain why the alert was issued.

This code: document.getElementById("foo").click = new function() { alert('foo'); }; assigns the click property of the #foo element to an empty object. The anonymous function in here is meant to initialize the object. I like to think of this type of function as a constructor. You put the alert in there, so it gets called because the function gets called immediately.

See this question.

Right click on data which you want to store

• Firstly, Right click on data which you want to store -> select "Store as global variable" And the new temp variable appear like bellow: (temp3 variable): New temp variable appear in console
• Second use command copy(temp_variable_name) like picture: enter image description here After that, you can paste data to anywhere you want. hope useful/

If the requirement is to copy all files in "\Publish\Appfolder" into the parent "\Publish\" folder (inclusive of any subfolders, following works for me) The switch '/s' allows copying of all subfolders, recursively.

xcopy src\main\Publish\Appfolder\*.* /s src\main\Publish\

There can't be aggregate functions (Ex. COUNT, MAX, etc.) in A WHERE clause. Hence we use the HAVING clause instead. Therefore the whole query would be similar to this:

SELECT column_name, aggregate_function(column_name)
FROM table_name
WHERE column_name operator value
GROUP BY column_name
HAVING aggregate_function(column_name) operator value;

One of the differences is the following, when trying to print a byte into its hexadecimal appearance. For example, we know that the decimal value of 255 is 0xFF in hexadecimal appearance:

val = '{:02x}'.format(255)

sys.stdout.write(val) # Prints ff2
print(val)            # Prints ff

Use grep and regular expressions, for example if you want 4 minutes interval of logs:

grep "31/Mar/2002:19:3[1-5]" logfile

will return all logs lines between 19:31 and 19:35 on 31/Mar/2002. Supposing you need the last 5 days starting from today 27/Sep/2011 you may use the following:

grep "2[3-7]/Sep/2011" logfile

In my case, there is 14 input edit text in the list view. The problem I was facing, when the keyboard open, edit text focus lost, scroll the layout, and as soon as focused view not visible to the user keyboard down. It was not good for the user experience. I can't use windowSoftInputMethod="adjustPan". So after so much searching, I found a link that inflates custom layout and sets data on view as an adapter by using LinearLayout and scrollView and work well for my case.

npm update solves the issue for me

You will need to configure your Win7 PC as a Time Server, and then configure the RasPi to connect to it for NTP services.

Configure Win7 as authoritative time server. Configure RasPi time server lookup.

Try to add this:

^[^a-zA-Z\d\s:]*$

This has worked for me... :)

You can also do the following:

txt = "Hello World!"
print (*txt, sep='\n')

This does not use loops but internally print statement takes care of it.

* unpacks the string into a list and sends it to the print statement

sep='\n' will ensure that the next char is printed on a new line

The output will be:

H
e
l
l
o
 
W
o
r
l
d
!

If you do need a loop statement, then as others have mentioned, you can use a for loop like this:

for x in txt: print (x)

You need to have your DBA modify the init.ora file, adding the directory you want to access to the 'utl_file_dir' parameter. Your database instance will then need to be stopped and restarted because init.ora is only read when the database is brought up.

You can view (but not change) this parameter by running the following query:

SELECT *
  FROM V$PARAMETER
  WHERE NAME = 'utl_file_dir'

Share and enjoy.

Also for openCV in python you can do:

img = cv2.imread('myImage.jpg')
height, width, channels = img.shape 

This should work. Make sure each button has a unique ID. (Replace Choose_Yes and Choose_No with the IDs of your two radio buttons)

document.getElementById("Choose_Yes").checked = false;
document.getElementById("Choose_No").checked = false;

An example of how the radio buttons should be named:

<input type="radio" name="Choose" id="Choose_Yes" value="1" /> Yes
<input type="radio" name="Choose" id="Choose_No" value="2" /> No

You have an incompatibility between the version of ASM required by Hibernate (asm-1.5.3.jar) and the one required by Spring. But, actually, I wonder why you have asm-2.2.3.jar on your classpath (ASM is bundled in spring.jar and spring-core.jar to avoid such problems AFAIK). See HHH-2222.

$time_PHP = strtotime( $datetime_SQL );

In most cases, this will install the latest version of the module published on npm.

npm install express --save

or better to upgrade module to latest version use:

npm install express@latest --save --force

--save: Package will appear in your dependencies.

More info: npm-install

I faced the same error, but only with files cloned from git that were assigned to a proprietary plugin. I realized that even after cloning the files from git, I needed to create a new project or import a project in eclipse and this resolved the error.

None of that stuff worked. Here's a much simpler way .. the label str is the pointer to what IS an array...

String str = String(yourNumber, DEC); // Obviously .. get your int or byte into the string

str = str + '\r' + '\n'; // Add the required carriage return, optional line feed

byte str_len = str.length();

// Get the length of the whole lot .. C will kindly
// place a null at the end of the string which makes
// it by default an array[].
// The [0] element is the highest digit... so we
// have a separate place counter for the array...

byte arrayPointer = 0;

while (str_len)
{
    // I was outputting the digits to the TX buffer

    if ((UCSR0A & (1<<UDRE0))) // Is the TX buffer empty?
    {
        UDR0 = str[arrayPointer];
        --str_len;
        ++arrayPointer;
    }
}

I got Gunders answer working with my App_GlobalResources by choosing the resources properties and switch "Custom Tool" to "PublicResXFileCodeGenerator" and build action to "Embedded Resource". Please observe Gunders comment below.

Works like a charm :)

Try the following in your view to check the output from each. The first one updates when the view is called a second time. My controller uses the key ShowCreateButton and has the optional parameter _createAction with a default value - you can change this to your key/parameter

@Html.TextBox("_createAction", null, new { Value = (string)ViewBag.ShowCreateButton })
@Html.TextBox("_createAction", ViewBag.ShowCreateButton )
@ViewBag.ShowCreateButton

For webpack I resolved this with webpack.config.js:

new webpack.ProvidePlugin({
  $: 'jquery',
  jQuery: 'jquery',
  "window.jQuery": "jquery",
  Tether: 'tether'
})

That's impossible with just HTML and CSS, or at least wildly exotic and complicated. If you're willing to throw some javascript in, here's a solution using jQuery:

$(function() {
    $(window).resize(function() {
        var $i = $('img#image_to_resize');
        var $c = $img.parent();
        var i_ar = $i.width() / $i.height(), c_ar = $c.width() / $c.height();            
        $i.width(i_ar > c_ar ? $c.width() : $c.height() * (i_ar));
    });
    $(window).resize();
});

That will resize the image so that it will always fit inside the parent element, regardless of it's size. And as it's binded to the $(window).resize() event, when user resizes the window, the image will adjust.

This does not try to center the image in the container, that would be possible but I guess that's not what you're after.

For those who intend to use venv:

If you don't already have pip for Python 3:

sudo apt install python3-pip

Install venv package:

sudo apt install python3.7-venv

Create virtual environment (which will be bootstrapped with pip by default):

python3.7 -m venv /path/to/new/virtual/environment

To activate the virtual environment, source the appropriate script for the current shell, from the bin directory of the virtual environment. The appropriate scripts for the different shells are:

bash/zsh – activate

fish – activate.fish

csh/tcsh – activate.csh

For example, if using bash:

source /path/to/new/virtual/environment/bin/activate

Optionally, to update pip for the virtual environment (while it is activated):

pip install --upgrade pip

When you want to deactivate the virtual environment:

deactivate 

Methods that read data into byte slices return the number of bytes read. You should save that number and then use it to create your string. If n is the number of bytes read, your code would look like this:

s := string(byteArray[:n])

To convert the full string, this can be used:

s := string(byteArray[:len(byteArray)])

This is equivalent to:

s := string(byteArray)

If for some reason you don't know n, you could use the bytes package to find it, assuming your input doesn't have a null character embedded in it.

n := bytes.Index(byteArray, []byte{0})

Or as icza pointed out, you can use the code below:

n := bytes.IndexByte(byteArray, 0)

Use line-height:50px; instead of height. That should do the trick ;)

What you could try to do is create an object to hold the property value. That way you could pass the object and still have access to the property inside.

As most people have pointed out that subclassing UITableViewCell solves this issue. But the reason this not allowed because the prototype cell(UITableViewCell) is defined by Apple and you cannot add any of your own outlets to it.

The Data Export function in MySQL Workbench allows 2 of the 3 ways. There's a checkbox Skip Table Data (no-data) on the export page which allows to either dump with or without data. Just dumping the data without meta data is not supported.

On my machine:

C:\Program Files (x86)\OpenERP 6.1-20121026-233219\PostgreSQL\data

You could say that line is correct in most scripting languages, since the extra character results in slightly slower code processing. However, as the top answer pointed out, it should have no effect in C++, and anything being done with a scripting language probably isn't that concerned about optimization.

Try TinyXML or IrrXML...Both are lightweight XML parsers ( I'd suggest you to use TinyXML, anyway ).

Here you go:

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>bluantinoo CSS Grayscale Bg Image Sample</title>
<style type="text/css">
    div {
        border: 1px solid black;
        padding: 5px;
        margin: 5px;
        width: 600px;
        height: 600px;
        float: left;
        color: white;
    }
     .grayscale {
         background: url(yourimagehere.jpg);
         -moz-filter: url("data:image/svg+xml;utf8,<svg xmlns=\'http://www.w3.org/2000/svg\'><filter id=\'grayscale\'><feColorMatrix type=\'matrix\' values=\'0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0 0 0 1 0\'/></filter></svg>#grayscale");
         -o-filter: url("data:image/svg+xml;utf8,<svg xmlns=\'http://www.w3.org/2000/svg\'><filter id=\'grayscale\'><feColorMatrix type=\'matrix\' values=\'0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0 0 0 1 0\'/></filter></svg>#grayscale");
         -webkit-filter: grayscale(100%);
         filter: gray;
         filter: url("data:image/svg+xml;utf8,<svg xmlns=\'http://www.w3.org/2000/svg\'><filter id=\'grayscale\'><feColorMatrix type=\'matrix\' values=\'0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0 0 0 1 0\'/></filter></svg>#grayscale");
     }

    .nongrayscale {
        background: url(yourimagehere.jpg);
    }
</style>
</head>
<body>
    <div class="nongrayscale">
        this is a non-grayscale of the bg image
    </div>
    <div class="grayscale">
        this is a grayscale of the bg image
    </div>
</body>
</html>

Tested it in FireFox, Chrome and IE. I've also attached an image to show my results of my implementation of this.

EDIT: Also, if you want the image to just toggle back and forth with jQuery, here's the page source for that...I've included the web link to jQuery and and image that's online so you should just be able to copy/paste to test it out:

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>bluantinoo CSS Grayscale Bg Image Sample</title>
<script src="http://code.jquery.com/jquery-1.11.0.min.js"></script>
<style type="text/css">
    div {
        border: 1px solid black;
        padding: 5px;
        margin: 5px;
        width: 600px;
        height: 600px;
        float: left;
        color: white;
    }
     .grayscale {
         background: url(http://www.polyrootstattoo.com/images/Artists/Buda/40.jpg);
         -moz-filter: url("data:image/svg+xml;utf8,<svg xmlns=\'http://www.w3.org/2000/svg\'><filter id=\'grayscale\'><feColorMatrix type=\'matrix\' values=\'0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0 0 0 1 0\'/></filter></svg>#grayscale");
         -o-filter: url("data:image/svg+xml;utf8,<svg xmlns=\'http://www.w3.org/2000/svg\'><filter id=\'grayscale\'><feColorMatrix type=\'matrix\' values=\'0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0 0 0 1 0\'/></filter></svg>#grayscale");
         -webkit-filter: grayscale(100%);
         filter: gray;
         filter: url("data:image/svg+xml;utf8,<svg xmlns=\'http://www.w3.org/2000/svg\'><filter id=\'grayscale\'><feColorMatrix type=\'matrix\' values=\'0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0 0 0 1 0\'/></filter></svg>#grayscale");
     }

    .nongrayscale {
        background: url(http://www.polyrootstattoo.com/images/Artists/Buda/40.jpg);
    }
</style>
    <script type="text/javascript">
        $(document).ready(function () {
            $("#image").mouseover(function () {
                $(".nongrayscale").removeClass().fadeTo(400,0.8).addClass("grayscale").fadeTo(400, 1);
            });
            $("#image").mouseout(function () {
                $(".grayscale").removeClass().fadeTo(400, 0.8).addClass("nongrayscale").fadeTo(400, 1);
            });
        });
</script>
</head>
<body>
    <div id="image" class="nongrayscale">
        rollover this image to toggle grayscale
    </div>
</body>
</html>

EDIT 2 (For IE10-11 Users): The solution above will not work with the changes Microsoft has made to the browser as of late, so here's an updated solution that will allow you to grayscale (or desaturate) your images.

<svg>_x000D_
  <defs>_x000D_
    <filter xmlns="http://www.w3.org/2000/svg" id="desaturate">_x000D_
      <feColorMatrix type="saturate" values="0" />_x000D_
    </filter>_x000D_
  </defs>_x000D_
  <image xlink:href="http://www.polyrootstattoo.com/images/Artists/Buda/40.jpg" width="600" height="600" filter="url(#desaturate)" />_x000D_
</svg>

This is how I did it.

Step 1: Install Java 11

You can download Java 11 dmg for mac from here: https://www.oracle.com/technetwork/java/javase/downloads/jdk11-downloads-5066655.html

Step 2: After installation of Java 11. Confirm installation of all versions. Type the following command in your terminal.

/usr/libexec/java_home -V

Step 3: Edit .bash_profile

sudo nano ~/.bash_profile

Step 4: Add 11.0.1 as default. (Add below line to bash_profile file).

export JAVA_HOME=$(/usr/libexec/java_home -v 11.0.1)

to switch to any version

export JAVA_HOME=$(/usr/libexec/java_home -v X.X.X)

Now Press CTRL+X to exit the bash. Press 'Y' to save changes.

Step 5: Reload bash_profile

source ~/.bash_profile

Step 6: Confirm current version of Java

java -version

Firefox 47.0 stopped working with Webdriver.

Easiest solution is to switch to Firefox 47.0.1 and Webdriver 2.53.1. This combination again works. In fact, restoring Webdriver compatibility was the main reason behind the 47.0.1 release, according to https://www.mozilla.org/en-US/firefox/47.0.1/releasenotes/.

Make sure your .NET version 4.5 or greater

You need a public class for Form1 to initialize.

See this code:

namespace TimerApp
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private int counter = 60;
        private void button1_Click(object sender, EventArgs e)
        {
            //Insert your code from before
        }

        private void timer1_Tick(object sender, EventArgs e)
        {
            //Again insert your code
        }
    }
}

I've tried this and it all worked fine

If you need anymore help feel free to comment :)

Now, it is 2012, and jQuery has append and prepend functions that do exactly this, add content without effecting current content. Very useful.

EDIT: I am maintaining a similar, but more in-depth answer at: https://stackoverflow.com/a/28380690/895245

To see exactly what is happening, use nc -l and an user agent like a browser or cURL.

Save the form to an .html file:

<form action="http://localhost:8000" method="post" enctype="multipart/form-data">
  <p><input type="text" name="text" value="text default">
  <p><input type="file" name="file1">
  <p><input type="file" name="file2">
  <p><button type="submit">Submit</button>
</form>

Create files to upload:

echo 'Content of a.txt.' > a.txt
echo '<!DOCTYPE html><title>Content of a.html.</title>' > a.html

Run:

nc -l localhost 8000

Open the HTML on your browser, select the files and click on submit and check the terminal.

nc prints the request received. Firefox sent:

POST / HTTP/1.1
Host: localhost:8000
User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux i686; rv:29.0) Gecko/20100101 Firefox/29.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Cookie: __atuvc=34%7C7; permanent=0; _gitlab_session=226ad8a0be43681acf38c2fab9497240; __profilin=p%3Dt; request_method=GET
Connection: keep-alive
Content-Type: multipart/form-data; boundary=---------------------------9051914041544843365972754266
Content-Length: 554

-----------------------------9051914041544843365972754266
Content-Disposition: form-data; name="text"

text default
-----------------------------9051914041544843365972754266
Content-Disposition: form-data; name="file1"; filename="a.txt"
Content-Type: text/plain

Content of a.txt.

-----------------------------9051914041544843365972754266
Content-Disposition: form-data; name="file2"; filename="a.html"
Content-Type: text/html

<!DOCTYPE html><title>Content of a.html.</title>

-----------------------------9051914041544843365972754266--

Aternativelly, cURL should send the same POST request as your a browser form:

nc -l localhost 8000
curl -F "text=default" -F "[email protected]" -F "[email protected]" localhost:8000

You can do multiple tests with:

while true; do printf '' | nc -l localhost 8000; done

Assigning questionFrame.frame.size.height= screenSize.height * 0.30 will not reflect anything in the view. because it is a get-only property. If you want to change the frame of questionFrame you can use the below code.

questionFrame.frame = CGRect(x: 0, y: 0, width: 0, height: screenSize.height * 0.70)

To my knowledge the only way to achieve this in a native select would be to use the unicode representations of the font. You'll have to apply the glyphicon font to the select and as such can't mix it with other fonts. However, glyphicons include regular characters, so you can add text. Unfortunately setting the font for individual options doesn't seem to be possible.

<select class="form-control glyphicon">
    <option value="">&#x2212; &#x2212; &#x2212; Hello</option>
    <option value="glyphicon-list-alt">&#xe032; Text</option>
</select>

Here's a list of the icons with their unicode:

http://glyphicons.bootstrapcheatsheets.com/

I’ve made a small gem that can alleviate the need to manually delete associated records in some circumstances.

This gem adds a new option for ActiveRecord associations:

dependent: :delete_recursively

When you destroy a record, all records that are associated using this option will be deleted recursively (i.e. across models), without instantiating any of them.

Note that, just like dependent: :delete or dependent: :delete_all, this new option does not trigger the around/before/after_destroy callbacks of the dependent records.

However, it is possible to have dependent: :destroy associations anywhere within a chain of models that are otherwise associated with dependent: :delete_recursively. The :destroy option will work normally anywhere up or down the line, instantiating and destroying all relevant records and thus also triggering their callbacks.

I think functions should not return null, for the health of your code-base. I can think of a few reasons:

There will be a large quantity of guard clauses treating null reference if (f() != null).

What is null, is it an accepted answer or a problem? Is null a valid state for a specific object? (imagine that you are a client for the code). I mean all reference types can be null, but should they?

Having null hanging around will almost always give a few unexpected NullRef exceptions from time to time as your code-base grows.

There are some solutions, tester-doer pattern or implementing the option type from functional programming.

There is one difference - you can't use String without using System; beforehand.

Using jQuery:

$(document).ready(function() {
    $(".myElement").wrap( '<span class="myElement_container_new"></span>' ); // for IE6
    $(".myElement_container_new").css({// for IE6
        "display" : "block",
        "position" : "relative",
        "margin" : "0",
        "padding" : "0",
        "border" : "none",
        "background-color" : "transparent",
        "clear" : "both",
        "text-align" : "center"
    });
    $(".myElement").css({
        "display" : "block",
        "position" : "relative",
        "max-width" : "75%", // for example
        "margin-left" : "auto",
        "margin-right" : "auto",
        "clear" : "both",
        "text-align" : "left"
    });
});

or, if you want to center every element with class ".myElement":

$(document).ready(function() {
    $(".myElement").each(function() {
        $(this).wrap( '<span class="myElement_container_new"></span>' ); // for IE6
        $(".myElement_container_new").css({// for IE6
            "display" : "block",
            "position" : "relative",
            "margin" : "0",
            "padding" : "0",
            "border" : "none",
            "background-color" : "transparent",
            "clear" : "both",
            "text-align" : "center"
        });
        $(this).css({
            "display" : "block",
            "position" : "relative",
            "max-width" : "75%",
            "margin-left" : "auto",
            "margin-right" : "auto",
            "clear" : "both",
            "text-align" : "left"
        });
    });
});

SIGKILL use to kill the process. SIGKILL can not be ignored or handled. In Linux, Ways to give SIGKILL.

kill -9 <process_pid> 
kill -SIGKILL <process_pid> 
killall -SIGKILL <process_name>
killall -9 <process_name>

You need to set a name on the <select> tag like so:

<select name="select_catalog" id="select_catalog">

You can get it in php with this:

$_POST['select_catalog'];

You can get a similar result by creating scalar-valued functions that return the variable values. Of course, function calls can be expensive if you use them in queries that return a large number of results, but if you're limiting the result-set you should be fine. Here I'm using a database created just to hold these semi-static values, but you can create them on a per-database basis, too. As you can see, there are no input variables, just a well-named function that returns a static value: if you change that value in the function, it will instantly change anywhere it's used (the next time it's called).

USE [globalDatabase]
GO

CREATE FUNCTION dbo.global_GetStandardFonts ()
RETURNS NVARCHAR(255)
AS
BEGIN
    RETURN 'font-family:"Calibri Light","sans-serif";'
END
GO

--  Usage: 
SELECT '<html><head><style>body{' + globalDatabase.dbo.global_GetStandardFonts() + '}</style></head><body>...'

--  Result: <html><head><style>body{font-family:"Calibri Light","sans-serif";}</style></head><body>...

Alternatively, you can resize the array.

Array.Resize(ref array, array.Length + 1);
array[array.Length - 1] = "new string";

Try with this

$(function(){
 //when click a button
  $("#miButton").click(function(){
    $(".dynamic-field").remove();
    //pass the data in the modal body adding html elements
    $('#myModal .modal-body').html('<input type="hidden" name="name" value="your value" class="dynamic-field">') ;
    //open the modal
    $('#myModal').modal('show') 
  })
})

I think that since return validateView(); will return a value (to the click event?), your second call ShowDiv1(); will not get called.

You can always wrap multiple function calls in another function, i.e.

<asp:LinkButton OnClientClick="return display();">

function display() {
   if(validateView() && ShowDiv1()) return true;
}

You also might try:

<asp:LinkButton OnClientClick="return (validateView() && ShowDiv1());">

Though I have no idea if that would throw an exception.

In this example we are creating a function to bring a comma delineated list of distinct line level AP invoice hold reasons into one field for header level query:

 FUNCTION getHoldReasonsByInvoiceId (p_InvoiceId IN NUMBER) RETURN VARCHAR2

  IS

  v_HoldReasons   VARCHAR2 (1000);

  v_Count         NUMBER := 0;

  CURSOR v_HoldsCusror (p2_InvoiceId IN NUMBER)
   IS
     SELECT DISTINCT hold_reason
       FROM ap.AP_HOLDS_ALL APH
      WHERE status_flag NOT IN ('R') AND invoice_id = p2_InvoiceId;
BEGIN

  v_HoldReasons := ' ';

  FOR rHR IN v_HoldsCusror (p_InvoiceId)
  LOOP
     v_Count := v_COunt + 1;

     IF (v_Count = 1)
     THEN
        v_HoldReasons := rHR.hold_reason;
     ELSE
        v_HoldReasons := v_HoldReasons || ', ' || rHR.hold_reason;
     END IF;
  END LOOP;

  RETURN v_HoldReasons;
END; 

I have philosophical problems with the use of exceptions. Basically, you are expecting a specific scenario to occur, but rather than handling it explicitly you are pushing the problem off to be handled "elsewhere." And where that "elsewhere" is can be anyone's guess.

Here I get only three specific columns from mainDataTable and use the filter

DataTable checkedParams = mainDataTable.Select("checked = true").CopyToDataTable()
.DefaultView.ToTable(false, "lagerID", "reservePeriod", "discount");

Dark magic function incantation for those who want the find ... xargs ... head ... solution above, but in easy to use function form so you don't have to think:

#define the function
find_newest_file_matching_pattern_under_directory(){
    echo $(find $1 -name $2 -print0 | xargs -0 ls -1 -t | head -1)
}

#setup:
#mkdir /tmp/files_to_move
#cd /tmp/files_to_move
#touch file1.txt
#touch file2.txt

#invoke the function:
newest_file=$( find_newest_file_matching_pattern_under_directory /tmp/files_to_move/ bc* )
echo $newest_file

Prints:

file2.txt

Which is:

The filename with the oldest modified timestamp of the file under the given directory matching the given pattern.

I realize this question is old but I didn't understand Antak's answer and didn't want to use a library so I rolled my own solution.

Solution assumes records is a 2D array, records are all the same length, and that fields are all strings.

def stringifyRecords(records):
    column_widths = [0] * len(records[0])
    for record in records:
        for i, field in enumerate(record):
            width = len(field)
            if width > column_widths[i]: column_widths[i] = width

    s = ""
    for record in records:
        for column_width, field in zip(column_widths, record):
            s += field.ljust(column_width+1)
        s += "\n"

    return s

The problem is WHEN the event is added and EXECUTED via triggering (the document onload property modification can be verified by examining the properties list).

When does this execute and modify onload relative to the onload event trigger:

document.addEventListener('load', ... );

before, during or after the load and/or render of the page's HTML?
This simple scURIple (cut & paste to URL) "works" w/o alerting as naively expected:

data:text/html;charset=utf-8,
    <html content editable><head>
          <script>
                document.addEventListener('load', function(){ alert(42) } );
          </script>
          </head><body>goodbye universe - hello muiltiverse</body>
    </html>

Does loading imply script contents have been executed?

A little out of this world expansion ...
Consider a slight modification:

data:text/html;charset=utf-8,
    <html content editable><head>
          <script>
              if(confirm("expand mind?"))document.addEventListener('load', function(){ alert(42) } );
          </script>
        </head><body>goodbye universe - hello muiltiverse</body>
    </html>

and whether the HTML has been loaded or not.

Rendering is certainly pending since goodbye universe - hello muiltiverse is not seen on screen but, does not the confirm( ... ) have to be already loaded to be executed? ... and so document.addEventListener('load', ... ) ... ?

In other words, can you execute code to check for self-loading when the code itself is not yet loaded?

Or, another way of looking at the situation, if the code is executable and executed then it has ALREADY been loaded as a done deal and to retroactively check when the transition occurred between not yet loaded and loaded is a priori fait accompli.

So which comes first: loading and executing the code or using the code's functionality though not loaded?

onload as a window property works because it is subordinate to the object and not self-referential as in the document case, ie. it's the window's contents, via document, that determine the loaded question err situation.

PS.: When do the following fail to alert(...)? (personally experienced gotcha's):

caveat: unless loading to the same window is really fast ... clobbering is the order of the day
so what is really needed below when using the same named window:

window.open(URIstr1,"w") .
   addEventListener('load', 
      function(){ alert(42); 
         window.open(URIstr2,"w") .
            addEventListener('load', 
               function(){ alert(43); 
                  window.open(URIstr3,"w") .
                     addEventListener('load', 
                        function(){ alert(44); 
                 /*  ...  */
                        } )
               } )
      } ) 

alternatively, proceed each successive window.open with:
alert("press Ok either after # alert shows pending load is done or inspired via divine intervention" );

data:text/html;charset=utf-8,
    <html content editable><head><!-- tagging fluff --><script>

        window.open(
            "data:text/plain, has no DOM or" ,"Window"
         ) . addEventListener('load', function(){ alert(42) } )

        window.open(
            "data:text/plain, has no DOM but" ,"Window"
         ) . addEventListener('load', function(){ alert(4) } )

        window.open(
            "data:text/html,<html><body>has DOM and", "Window"
         ) . addEventListener('load', function(){ alert(2) } )

        window.open(
            "data:text/html,<html><body>has DOM and", "noWindow"
         ) . addEventListener('load', function(){ alert(1) } )

        /* etc. including where body has onload=... in each appropriate open */

    </script><!-- terminating fluff --></head></html>

which emphasize onload differences as a document or window property.

Another caveat concerns preserving XSS, Cross Site Scripting, and SOP, Same Origin Policy rules which may allow loading an HTML URI but not modifying it's content to check for same. If a scURIple is run as a bookmarklet/scriplet from the same origin/site then there maybe success.

ie. From an arbitrary page, this link will do the load but not likely do alert('done'):

    <a href="javascript:window.open('view-source:http://google.ca') . 
                   addEventListener( 'load',  function(){ alert('done') }  )"> src. vu </a>

but if the link is bookmarked and then clicked when viewing a google.ca page, it does both.

test environment:

 window.navigator.userAgent = 
   Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.0.4) Gecko/2008102920 Firefox/3.0.4 (Splashtop-v1.2.17.0)

from python mailing lists: parsing millisecond thread. There is a function posted there that seems to get the job done, although as mentioned in the author's comments it is kind of a hack. It uses regular expressions to handle the exception that gets raised, and then does some calculations.

You could also try do the regular expressions and calculations up front, before passing it to strptime.