To pass JSLint&#39;s criteria, it needs to be written like this:

`}(jQuery));`

Though I think that particular criteria is a bit subjective. Both ways seem fine in my opinion.

`(function () {})()` makes a bit more sense to me since you wrap the full function, then call it

`(function () {}())` looks like you&#39;re wrapping the result of the function call in a parens ...

How to create xml document with node prefix like:

    &lt;sphinx:docset&gt;
      &lt;sphinx:schema&gt;
        &lt;sphinx:field name=&quot;subject&quot;/&gt;
        &lt;sphinx:field name=&quot;content&quot;/&gt;
        &lt;sphinx:attr name=&quot;published&quot; type=&quot;timestamp&quot;/&gt;
     &lt;/sphinx:schema&gt;
   &lt;/sphinx:docset&gt;

When I try to run something like `new XElement(&quot;sphinx:docset&quot;)` i getting exception 

&gt; Unhandled Exception: System.Xml.XmlException: The &#39;:&#39; character, hexadecimal val
ue 0x3A, cannot be included in a name.  
   at System.Xml.XmlConvert.VerifyNCName(String name, ExceptionType exceptionTyp
e)  
   at System.Xml.Linq.XName..ctor(XNamespace ns, String localName)  
   at System.Xml.Linq.XNamespace.GetName(String localName)  
   at System.Xml.Linq.XName.Get(String expandedName)

XElement namespaces (How to?)

I&#39;m using Eclipse Helios on Ubuntu 10.04, and I&#39;m trying to install CDT plugin on it. I download it from here [here][1]. 

And then I go to **Install New Software** and select the zip file (*I don&#39;t extract it, just select the zip file*). And its ok, it installs, everything works fine, it shows optional features, *blah blah blah*.

And then I create a new HelloWorld project. And when I try to run it, it shows an error and says:

Launch failed. Binary not found.

Can anyone explain me how to fix it?

Thanks.


  [1]: http://www.eclipse.org/downloads/download.php?file=/tools/cdt/releases/helios/dist/cdt-master-7.0.1.zip

Launch Failed. Binary not found. CDT on Eclipse Helios

What does **JSLint** mean by this error? And how should it be rewritten?

`Error: Problem at line 78 character 3: Move the invocation into the parens that contain the function: 
    })(jQuery);
`


JSLint error: &quot;Move the invocation into the parens that contain the function&quot;

What does JSLint mean by this error? And how should it be rewritten?
<code>Error: Problem at line 78 character 3: Move the invocation into the parens that contain the function: })(jQuery); </code>

I have a div whose content may change in various ways: for instance its whole content may be reloaded via innerHTML, or nodes may be added via DOM methods. This in turn may happen via native Javascript or indirectly via calls the jQuery API or via other libraries.

I want to execute some code when the content of the div changes, but I have **absolutely no control** on *how* it will change. Indeed I am designing a widget that may be used by other people, who are free to change the content of their divs the way they prefer. When the inner content of this div changes, the shape of the widget may have to be updated as well.

I&#39;m using jQuery. Is there a way to capture the event that the content of this div has changed, however it happened?

Fire jQuery event on div change

I thought this would be rather simple but it seems the empty method is not working to clear out a tbody that I have. I would appreciate if anyone knows a proper way to do this, I just want to delete everything contained within the tbody. So far I am trying:

    $(&quot;#tbodyid&quot;).empty();

HTML:

    &lt;table&gt;
    &lt;tbody id=&quot;tbodyid&quot;&gt;
    &lt;tr&gt;&lt;td&gt;something&lt;/td&gt;&lt;/tr&gt;
    &lt;/tbody&gt;
    &lt;/table&gt;

NOTE: I am trying to do this to integrate with a plugin written by someone else that I am being made to use for a project. I am generating new `&lt;tr&gt;&lt;td&gt;new data&lt;/td&gt;&lt;/tr&gt;` server-side and want to just be able to wipe out the existing table rows and replace them on AJAX callbacks.


Jquery, Clear / Empty all contents of tbody element?

From [docs][1] I understand that `.proxy()` would change the scope of the function passed as an argument. Could someone please explain me this better? Why should we do this?


  [1]: http://api.jquery.com/jquery.proxy/

Understanding $.proxy() in jQuery

Does JavaScript has similar functionality as Ruby has?

    array.select {|x| x &gt; 3}

Something like:

    array.select(function(x) { if (x &gt; 3)  return true})

array.select() in JavaScript

In my code, I fairly frequently need to replace all children of a certain HTML container with a new list of children.

What is the fastest way to do this? My current approach is collecting all new elements into a DocumentFragment. The only way I&#39;ve found to then actually replace the children is to remove all the children one by one, and append the fragment. Is there no faster way?

Note: the solution needs not be cross-browser, but should preferably not require 3d-party components such as jQuery. The target-device is WebKit on a _very_ slow CPU so I need to keep full control of any reflows.

Replacing all children of an HTMLElement?

I understand JavaScript closures, and I&#39;ve seen this done in native JS:

    (function () {
      // all JS code here
    })();

But, what does adding the jQuery spice do?

    (function ($) {
      // all JS code here
    })(jQuery);



jQuery dollar sign ($) as function argument?

Similar to [brnwdrng&#39;s question][1], I&#39;m looking for a way to search through a JSON-like object.  
supposing my object&#39;s structure is like so:

    TestObj = {
        &quot;Categories&quot;: [{
            &quot;Products&quot;: [{
                &quot;id&quot;: &quot;a01&quot;,
                &quot;name&quot;: &quot;Pine&quot;,
                &quot;description&quot;: &quot;Short description of pine.&quot;
            },
            {
                &quot;id&quot;: &quot;a02&quot;,
                &quot;name&quot;: &quot;Birch&quot;,
                &quot;description&quot;: &quot;Short description of birch.&quot;
            },
            {
                &quot;id&quot;: &quot;a03&quot;,
                &quot;name&quot;: &quot;Poplar&quot;,
                &quot;description&quot;: &quot;Short description of poplar.&quot;
            }],
            &quot;id&quot;: &quot;A&quot;,
            &quot;title&quot;: &quot;Cheap&quot;,
            &quot;description&quot;: &quot;Short description of category A.&quot;
        },
        {
            &quot;Product&quot;: [{
                &quot;id&quot;: &quot;b01&quot;,
                &quot;name&quot;: &quot;Maple&quot;,
                &quot;description&quot;: &quot;Short description of maple.&quot;
            },
            {
                &quot;id&quot;: &quot;b02&quot;,
                &quot;name&quot;: &quot;Oak&quot;,
                &quot;description&quot;: &quot;Short description of oak.&quot;
            },
            {
                &quot;id&quot;: &quot;b03&quot;,
                &quot;name&quot;: &quot;Bamboo&quot;,
                &quot;description&quot;: &quot;Short description of bamboo.&quot;
            }],
            &quot;id&quot;: &quot;B&quot;,
            &quot;title&quot;: &quot;Moderate&quot;,
            &quot;description&quot;: &quot;Short description of category B.&quot;
        }]
    };

I&#39;d like to get an object with id=&quot;A&quot;.
 
I&#39;ve tried all sort of stuff such as:

    $(TestObj.find(&quot;:id=&#39;A&#39;&quot;))

but nothing seems to work.

Can anyone think of a way of retrieving an item based on some criteria without using &#39;each&#39;?

  [1]: https://stackoverflow.com/questions/4414778/searching-a-json-object-with-jquery

use jQuery&#39;s find() on JSON object

I have some mockup in HTML

    &lt;a href=&quot;javascript:ShowOld(2367,146986,2)&quot;&gt;&lt;img title=&quot;next page&quot; alt=&quot;next page&quot; src=&quot;/themes/me/img/arrn.png&quot;&gt;&lt;/a&gt;

I got the response from server when I sent the request.

With this mockup I got as a response of AJAX request that sends my code to server.

Well, everything is fine but when I click on the link the browser wants to open the function as link; meaning after click I see the address bar as 

    javascript:ShowOld(2367,146986,2)

means browser thing that&#39;s url if I want to do this in firebug that&#39;s work. Now I want to do that then when anyone clicks the link then the browser tries to call the function already loaded in the DOM instead of trying to open them in browser.



How to call JavaScript function instead of href in HTML

I&#39;m making a Chrome Extension and need to view the HTML/CSS/JS of the `popup.html`.  

I can&#39;t right click to inspect elements. Is there another way? I need to make sure CSS and JavaScript is being inserted correctly. How to debug a problem in that popup file?

Debug popup.html of a Chrome Extension?

How do I &quot;dynamically&quot; edit JavaScript code in the Chrome debugger? It&#39;s not for me, so I don&#39;t have access to the source file. I want to edit code and see what effects they have on the page, in this case stopping an animation from queuing up a bunch of times.


Editing in the Chrome debugger

I would like to add some C# &quot;debug only&quot; code that only runs if the person debugging requests it.  In C++, I used to do something similar to the following:

    void foo()
    {   
      // ...
      #ifdef DEBUG
      static bool s_bDoDebugOnlyCode = false;
      if (s_bDoDebugOnlyCode)
      {
          // Debug only code here gets executed when the person debugging 
          // manually sets the bool above to true.  It then stays for the rest
          // of the session until they set it to false.
      }
      #endif
     // ...
    }

I can&#39;t do exactly the same in C# since there is no local statics.

**Question**: What is the best way to accomplish this in C#?

1. Should I use a private class static field with C# preprocessor directives (`#if/#endif DEBUG`)?
2. Should I use the Conditional attribute (to hold the code), and then a private class static field (**not** surrounded by C# preprocessor directives `#if/#endif DEBUG`?).
3. Something else?

&quot;Debug only&quot; code that should run only when &quot;turned on&quot;

When I open Developer Tools in Google Chrome, I see all kinds of features like Profiles, Timelines, and Audits, but basic functionality like being able to set breakpoints both in js files and within html and javascript code is missing! I tried to use the javascript console, which itself is buggy - for example, once it encounters a JS error, I cannot get out of it unless I refresh the whole page. Can someone help? 

How to set breakpoints in inline Javascript in Google Chrome?

I&#39;m trying to write a rather trivial program using open gl on linux, but at a compile time it says:


&gt; Compile thumb  : egl &lt;= cuberenderer.c
&gt; In file included from
&gt; /path/include/egl.h:36,
&gt;                  from /path/cuberenderer.c:7:
&gt; /path/include/eglplatform.h:89:22:
&gt; error: X11/Xlib.h: No such file or
&gt; directory
&gt; /path/include/eglplatform.h:90:23:
&gt; error: X11/Xutil.h: No such file or
&gt; directory

I&#39;m totally new to GL and have no idea what&#39;s wrong.

X11/Xlib.h not found in Ubuntu

I am having some difficulty compiling a C++ program that I&#39;ve written.

This program is very simple and, to the best of my knowledge, conforms to all the rules set forth in the C++ Standard.  I&#39;ve read over the entirety of ISO/IEC 14882:2003 twice to be sure.

The program is as follows:

![enter image description here][1]

Here is the output I received when trying to compile this program with Visual C++ 2010:
    
    c:\dev&gt;cl /nologo helloworld.png
    cl : Command line warning D9024 : unrecognized source file type &#39;helloworld.png&#39;, object file assumed
    helloworld.png : fatal error LNK1107: invalid or corrupt file: cannot read at 0x5172

Dismayed, I tried g++ 4.5.2, but it was equally unhelpful:

    c:\dev&gt;g++ helloworld.png
    helloworld.png: file not recognized: File format not recognized
    collect2: ld returned 1 exit status

I figured that Clang (version 3.0 trunk 127530) must work, since it is so highly praised for its standards conformance.  Unfortunately, it didn&#39;t even give me one of its pretty, highlighted error messages:

    c:\dev&gt;clang++ helloworld.png
    helloworld.png: file not recognized: File format not recognized
    collect2: ld returned 1 exit status
    clang++: error: linker (via gcc) command failed with exit code 1 (use -v to see invocation)

To be honest, I don&#39;t really know what any of these error message mean.

Many other C++ programs have source files with a _.cpp_ extension, so I thought perhaps I needed to rename my file.  I changed its name to _helloworld.cpp_, but that didn&#39;t help.  I think there is a very serious bug in Clang because when I tried using it to compile the renamed program, it flipped out, printed &quot;84 warnings and 20 errors generated.&quot; and made my computer beep a lot!

What have I done wrong here?  Have I missed some critical part of the C++ Standard?  Or are all three compilers really just so broken that they can&#39;t compile this simple program?  

  [1]: http://i.stack.imgur.com/JQXWL.png

Why is this program erroneously rejected by three C++ compilers?

Under what situation is it possible for GCC to **not** throw an &quot;undefined reference&quot; link error message when trying to call made-up functions?

For example, a situation in which this C code is compiled and linked by GCC:

    void function()
    {
        made_up_function_name();
        return;
    }

...even though `made_up_function_name` is not present **anywhere** in the code (not headers, source files, declarations, nor any third party library).

Can that kind of code be accepted and compiled by GCC under certain conditions, without touching the actual code? If so, which?

Thanks.

EDIT: no previous declarations or mentions to `made_up_function_name` are present anywhere else. Meaning that a `grep -R` of the whole filesystem will **only** show that exact single line of code.

Can GCC not complain about undefined references?

I have a member function that is defined as follows:
    
    Value JSONDeserializer::ParseValue(TDR type, const json_string&amp; valueString);

When I compile the source, I get:

&gt; error: extra qualification &#39;JSONDeserializer::&#39; on member &#39;ParseValue&#39;

What is this? How do I remove this error?


extra qualification error in C++

I&#39;m getting the error:

&gt;Extension methods must be defined in a non-generic static class

On the line:

    public class LinqHelper

Here is the helper class, based on Mark Gavells code.  I&#39;m really confused as to what this error means as I am sure it was working fine when I left it on Friday!

    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Web;
    using System.Linq.Expressions;
    using System.Reflection;
    
    /// &lt;summary&gt;
    /// Helper methods for link
    /// &lt;/summary&gt;
    public class LinqHelper
    {
        public static IOrderedQueryable&lt;T&gt; OrderBy&lt;T&gt;(this IQueryable&lt;T&gt; source, string property)
        {
            return ApplyOrder&lt;T&gt;(source, property, &quot;OrderBy&quot;);
        }
        public static IOrderedQueryable&lt;T&gt; OrderByDescending&lt;T&gt;(this IQueryable&lt;T&gt; source, string property)
        {
            return ApplyOrder&lt;T&gt;(source, property, &quot;OrderByDescending&quot;);
        }
        public static IOrderedQueryable&lt;T&gt; ThenBy&lt;T&gt;(this IOrderedQueryable&lt;T&gt; source, string property)
        {
            return ApplyOrder&lt;T&gt;(source, property, &quot;ThenBy&quot;);
        }
        public static IOrderedQueryable&lt;T&gt; ThenByDescending&lt;T&gt;(this IOrderedQueryable&lt;T&gt; source, string property)
        {
            return ApplyOrder&lt;T&gt;(source, property, &quot;ThenByDescending&quot;);
        }
        static IOrderedQueryable&lt;T&gt; ApplyOrder&lt;T&gt;(IQueryable&lt;T&gt; source, string property, string methodName)
        {
            string[] props = property.Split(&#39;.&#39;);
            Type type = typeof(T);
            ParameterExpression arg = Expression.Parameter(type, &quot;x&quot;);
            Expression expr = arg;
            foreach (string prop in props)
            {
                // use reflection (not ComponentModel) to mirror LINQ
                PropertyInfo pi = type.GetProperty(prop);
                expr = Expression.Property(expr, pi);
                type = pi.PropertyType;
            }
            Type delegateType = typeof(Func&lt;,&gt;).MakeGenericType(typeof(T), type);
            LambdaExpression lambda = Expression.Lambda(delegateType, expr, arg);
    
            object result = typeof(Queryable).GetMethods().Single(
                    method =&gt; method.Name == methodName
                            &amp;&amp; method.IsGenericMethodDefinition
                            &amp;&amp; method.GetGenericArguments().Length == 2
                            &amp;&amp; method.GetParameters().Length == 2)
                    .MakeGenericMethod(typeof(T), type)
                    .Invoke(null, new object[] { source, lambda });
            return (IOrderedQueryable&lt;T&gt;)result;
        }
    }



Extension methods must be defined in a non-generic static class

I notice that in CoffeeScript, if I define a function using:

    a = (c) -&gt; c=1

I can only get the **function expression**:

    var a;
    a = function(c) {
        return c = 1;
    };

But, personally I often use **function declaration**,for example:

    function a(c) {
        return c = 1;
    }

I do use the first form, but I&#39;m wondering if there is a way in CoffeeScript generating a function declaration. If there is no such way, I would like to know why CoffeeScript avoid doing this. I don&#39;t think JSLint would holler an error for declaration, as long as the function is declared at the top of the scope.

Function declaration in CoffeeScript

what can I do if JSLint complains about &quot;i&quot; being an unused variable in such a scenario:

    var items = &quot;&lt;option selected&gt;&lt;/option&gt;&quot;;
    $.each(data, function (i, item) {
        items += &quot;&lt;option value=&#39;&quot; + item.Value + &quot;&#39;&gt;&quot; + item.Text + &quot;&lt;/option&gt;&quot;;
    });

(i, item) is the required order of parameters and I&#39;m only using &quot;item&quot;. 

Is there any other solution than tolerating unused variables or rewriting the $.each to use the index, both solutions which I would prefer not to do?

Thanks in advance.

Update: I appreciate all the suggestions but this code is simply an example to show you what I mean and I&#39;m interested to see a general solution, if there&#39;s any. Thanks.

JSLint message: Unused variables

I am currently validating my JavaScript against JSLint and making progress on, it&#39;s assisting me to write better JavaScript - in particular in working with the Jquery library.

I have now come across **JSHint**, a fork of **JSLint**.  
So I am wondering for web applications, which are very much JavaScript was driven, which is the better or most applicable validation tool to work against:  

- JSLint or JSHint?  

I want to decide now on a validation mechanism and moving forward, use this for client side validation.

And Difference between jshint and jslint? Please explain in single javascript example.

Links:

 1. **jshint**-    http://www.jshint.com/
   
 2. **jslint**-    http://jslint.com/



Should I use JSLint or JSHint JavaScript validation?

### Original Question:

[JSHint][1] complains when my JavaScript calls a function that is defined further down the page than the call to it. However, my page is for a game, and no functions are called until the whole thing has downloaded. So why does the order functions appear in my code matter?


### EDIT: I think I may have found the answer.
http://www.adequatelygood.com/2010/2/JavaScript-Scoping-and-Hoisting

I am groaning inside. Looks like I need to spend ANOTHER day re-ordering six thousand lines of code. The learning curve with javascript is not steep at all, but it is very loooooong.


  [1]: http://www.jshint.com/

JavaScript function order: why does it matter?

&gt; I think  this may be a duplicate of https://stackoverflow.com/questions/6300937/strict-violation-using-this-keyword-and-revealing-module-pattern



I have this code:

    function gotoPage(s){
        if(s&lt;=this.d&amp;&amp;s&gt;0){this.g=s; this.page((s-1)*this.p.size);}
    }

    function pageChange(event, sorter) {
        var dd = event.currentTarget;
        gotoPage.call(sorter, dd[dd.selectedIndex].value);
    }

And JSHINT (JSLINT) is complaining.  It says &quot;Strict violation.&quot; for the highlighted line: 

![enter image description here][1]


Is my use of `Function.call()` and then referencing the instance, somehow inappropriate? 

Is this considered to be bad style?

  [1]: http://i.imgur.com/1SIfX.png

Content Type	Original Author	Original Content on Stackoverflow
Question	Såm	View Question on Stackoverflow
Solution 1 - Javascript	Matt	View Answer on Stackoverflow

JSLint error: "Move the invocation into the parens that contain the function"

Javascript Problem Overview

Javascript Solutions

Solution 1 - Javascript

Launch Failed. Binary not found. CDT on Eclipse Helios

XElement namespaces (How to?)

Attributions