In many of my posts, I give code examples to illustrate a point. To avoid cluttering the examples up with browser-specific stuff, I'm using a couple of calls from the Prototype library.
Actually, right now, just the one:
Event.observe()
. This function hooks up an event handler in a way that is consistent across browsers, even Internet Explorer, which is good because IE doesn't support the standard addEventListener()
function, and its own attachEvent()
function behaves slightly differently (within the handler, "this" is the global object, like in old DOM0 handlers; whereas with addEventListener
it's the element you're hooking the event to). Prototype's Event.observe()
ensures that "this" is always the element, even on IE, and also does some housekeeping to try to mitigate an IE bug where it tends to leak memory if you use closures as event handlers (which is incredibly common).If I use more Prototype stuff, I'll list it here as well, but this is only about trying to keep the examples simple and clear, not about using Prototype or any other specific library...
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