The semi-colon is there in case you include this script just after some &#39;bad&#39; script that doesn&#39;t properly close off its last line with a semi-colon.  In this case it&#39;s possible the two scripts would be combined and result in invalid code.  For example if you are merging multiple script into a single response.

The () at the end is executing the function.  This is creating a closure. Private variables and methods can be declared within the scope of this function that cannot be accessed from outside the script.

This construct :

    (function(){ /* something in here */ })()

Is used to create a new scope in Javascript.

[More info on function scope here.][1]

Regarding the semicolon, I never seen it before. I think it&#39;s a security for when you concatenate several scripts, since semicolons are optional in some cases at the end of the file.


  [1]: https://developer.mozilla.org/en/JavaScript/Reference/Functions_and_function_scope

I have a `List&lt;&gt;` of custom objects.

I need to find an object in this list by some property which is unique and update another property of this object. 

What is the quickest way to do it?


How to update an object in a List&lt;&gt; in C#

Is it possible to get information from user&#39;s profile via Google API? If it is possible, which API should I use? 

I&#39;m interesting in such information:

 - Url to the user profile (e.g. https://profiles.google.com/115063121183536852887);
 - Gender (sex);
 - Profile photo.

Also it would be cool to get other information from user&#39;s profile.

Get user info via Google API

&gt; **Possible Duplicate:**  
&gt; [What does the leading semicolon in JavaScript libraries do?](https://stackoverflow.com/questions/1873983/what-does-the-leading-semicolon-in-javascript-libraries-do)  

&lt;!-- End of automatically inserted text --&gt;

I have noticed a lot of jQuery plugins start with 

    ;(function(){ /* something in here */ })();

I just wondered what the beginning semi-colon was for, as well as the empty parentheses at the end.

What&#39;s the purpose of starting semi colon at beginning of JavaScript?

> Possible Duplicate: 
> <a href="https://stackoverflow.com/questions/1873983/what-does-the-leading-semicolon-in-javascript-libraries-do" target="_blank" rel="noopener noreferrer">What does the leading semicolon in JavaScript libraries do?</a>

I have noticed a lot of jQuery plugins start with
<pre><code class="hljs language-javascript">;(function(){ /* something in here */ })();
</code></pre>
I just wondered what the beginning semi-colon was for, as well as the empty parentheses at the end.

Lets have a look at an example.

    var arr1 = new Array({name: &quot;lang&quot;, value: &quot;English&quot;},
                         {name: &quot;age&quot;, value: &quot;18&quot;});

    var arr2 = new Array({name : &quot;childs&quot;, value: &#39;5&#39;},
                         {name: &quot;lang&quot;, value: &quot;German&quot;});

I need to merge those 2 arrays of objects and create the following array:

    var arr3 = new Array({name: &quot;lang&quot;, value: &quot;German&quot;},
                         {name: &quot;age&quot;, value: &quot;18&quot;},
                         {name : &quot;childs&quot;, value: &#39;5&#39;});

Is there any JavaScript or jQuery function to do this?

`$.extend` doesn&#39;t suit me. It returns

    var arr4 = new Array({name : &quot;childs&quot;, value: &#39;5&#39;},
                         {name: &quot;lang&quot;, value: &quot;German&quot;});

Merge 2 arrays of objects

So i&#39;m writing a tiny little plugin for JQuery to remove spaces from a string. [see here][1]

    (function($) {
        $.stripSpaces = function(str) {
            var reg = new RegExp(&quot;[ ]+&quot;,&quot;g&quot;);
            return str.replace(reg,&quot;&quot;);
        }
    })(jQuery);

my regular expression is currently `[ ]+` to collect all spaces. 
This works.. however It doesn&#39;t leave a good taste in my mouth.. 
I also tried `[\s]+` and `[\W]+` but neither worked.. 

There has to be a better (more concise) way of searching for only spaces. 


  [1]: http://jsfiddle.net/rlemon/ge59E/

Javascript Regular Expression Remove Spaces

i am trying to convert a string in the format dd-mm-yyyy into a date object in JavaScript using the following:

     var from = $(&quot;#datepicker&quot;).val();
     var to = $(&quot;#datepickertwo&quot;).val();
     var f = new Date(from);
     var t = new Date(to);

`(&quot;#datepicker&quot;).val()` contains a date in the format dd-mm-yyyy. 
When I do the following, I get &quot;Invalid Date&quot;:

    alert(f);

Is this because of the &#39;-&#39; symbol? How can I overcome this?




Convert dd-mm-yyyy string to date

I want to reposition an entire div and its contents up about 10-15 pixels.

How can I do this?

Note:  this is slider element, so when I click a button the slider slides down.  Once it is finished I want to reposition it up about 15 pixels.

How to move an entire div element up x pixels?

Is there a way I can run a php function through a JS function?

something like this:

    &lt;script type=&quot;text/javascript&quot;&gt;
    function test(){
    document.getElementById(&quot;php_code&quot;).innerHTML=&quot;&lt;?php 
    query(&quot;hello&quot;);       ?&gt;&quot;;    
    }
    &lt;/script&gt;

    &lt;a href=&quot;#&quot; style=&quot;display:block; color:#000033; font-family:Tahoma; font-size:12px;&quot;     
    onclick=&quot;test(); return false;&quot;&gt; test &lt;/a&gt;
    &lt;span id=&quot;php_code&quot;&gt; &lt;/span&gt;

I basically want to run the php function `query(&quot;hello&quot;)`, when I click on the href called &quot;Test&quot; which would call the php function.

Call php function from JavaScript

I want to run a function when someone scrolls down on an element. Something like this:

     $(&#39;div&#39;).scrollDown(function(){ alert(&#39;down&#39;) });
     $(&#39;div&#39;).scrollUp(function(){ alert(&#39;up&#39;) });

But those functions don&#39;t exist. Is there a solution to this problem? [Awwwards](http://awwwards.com) seem to be able to do it (logo in navbar changes depending on scroll direction). Unfortunately, the source code is compressed, so no luck there.

How to detect scroll direction

Does anyone know of a JS framework that has drag and drop functionality and is compatible with mobile (iOS) and regular browsers?

I currently have a web-based app and it is a hassle to make its drag&#39;n&#39;drop functionality  work on iOS... I wish there was one that would do it for both...

JS library (with drag n drop) compatible with iOS and regular browsers

I can set initial text input size in css, like so:

    width: 50px;

But I would like it to grow when I type until it reaches for example 200px.
Can this be done in straight css, html, preferably without javascript?

Do post your js/jquery solutions too of course, but if this is doable without them - that be great.

my try here:

http://jsfiddle.net/jszjz/2/

Content Type	Original Author	Original Content on Stackoverflow
Question	benpalmer	View Question on Stackoverflow
Solution 1 - Javascript	James Gaunt	View Answer on Stackoverflow
Solution 2 - Javascript	slaphappy	View Answer on Stackoverflow

What's the purpose of starting semi colon at beginning of JavaScript?

Javascript Problem Overview

Javascript Solutions

Solution 1 - Javascript

Solution 2 - Javascript

Get user info via Google API

How to update an object in a List<> in C#

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