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POUnderstanding JavaScript functions and plugins set up
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I have just started to write JavaScript after some time and I am confused by plugins constructor set up. I went through this link for advice. <a href="https://stackoverflow.com/questions/3755606/what-does-the-exclamation-mark-do-before-the-function">What does the exclamation mark do before the function?</a> I am interested in understanding this function set up.. I have seen seen three examples like this below: <pre><code>(function(parameterOne, parameterTwo) { functionOne = function(...) { ... }, functionTwo: new function() { }, this.functionThree = function(...) { } })() </code></pre> My questions are as follows: <ol> <li>When do one use the construct as given for functionOne vs functionTwo vs functionThree? How would I be able to call the functionOne, functionTwo or functionThree explicitly?</li> <li>I have seen functions like this: <pre><code>(function(parameter) { functionFour = function(..) { }, .... })(document) </code></pre></li> </ol> What does the document in this example indicate? I have been confused about this for a long time now. <ol start="3"> <li>I have seen jQuery plugins that follow this structure? <pre><code>(function($) { $.fn.myCustomPlugin: function(...) { } })(jQuery) </code></pre></li> </ol> Why is $ passed to the function and jQuery passed at the end? I apologize as this may be rudimentary questions to some of you but these have stymied me for couple of weeks now and I am desperate to get any answers I can. Thanks, Kartik
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<jquery-plugins><javascript>
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Understanding JavaScript functions and plugins set up
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1. COsee this post...and follow links to other duplicates within it http://stackoverflow.com/questions/7894038/jquery-plugin-syntax-wrapper http://stackoverflow.com/questions/4484289/id-like-to-understand-the-jquery-plugin-syntax
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