What is the difference between using call and apply to invoke a function?  var func = function() {   alert('hello!'); };   func.apply(); vs func.call();  Are there performance differences between the two aforementioned methods? When is it b...

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I've run into a unique situation that I have so far been unable to find a solution for: dynamically assigning a value to a CSS style.  I know how to use jQuery to assign width, height, etc. to an element, but what I'm trying to do is actual...

I have variable:  var variableDynamic = 1; // or     var variableDynamic = 1 + i++;   Is there any way to use that to create dynamic variable names, for example something like this:  var variableName + variableDynamic = {}; // or var (variableName...

I am working on dynamically creating some Javascript that will be inserted into a web page as it's being constructed.   The Javascript will be used to populate a listbox based on the selection in another listbox. When the selection of one listb...

Can I dynamically call an object method having the method name as a string? I would imagine it like this:  var FooClass = function() {     this.smile = function() {}; }  var method = "smile"; var foo = new FooClass();  // I want to run smil...

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Ok so I want to create variables as a user clicks threw the code every click adds a new variable. I am currently using jquery and javascript I can't do it server side this must be done in the browser.  newCount = document.getElementById('he...

I'm calling a web service that returns an array of objects in JSON.  I want to take those objects and populate a div with HTML.  Let's say each object contains a url and a name.  If I wanted to generate the following HTML for each object:...

Can search engines such as Google index JavaScript generated web pages? When you right click and select view source in a page that is generated by JavaScript (e.g using GWT) you do not see the dynamically generated HTML. I suppose that if a search en...