YUI Blog on JavaScript

Even if you aren’t a user of the Yahoo User Interface library this post from Douglas Crockford can be really insightful as it explains the main differences between Object Oriented Languages (like Java) and Javascript (which is a prototyped language):
Do not use new Function to create function values. Use function expressions instead. For example, 
frames[0].onfocus = new Function("document.bgColor='antiquewhite'")
is better written as 
frames[0].onfocus = function () {document.bgColor = 'antiquewhite';};
The second form allows the compiler to see the function body sooner, so any errors in it will be detected sooner. Sometimes new Function is used by people who do not understand how inner functions work.
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