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9232447 Jun 10, 2013
@shichuan @syk0saje @devinrhode2 @mmariani
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<!doctype html>
<html lang="en">
<head>
<title>JavaScript Patterns</title>
<meta charset="utf-8">
</head>
<body>
<script>
/* Title: Function Declarations
* Description: creating anonymous functions and assigning them to a variable
*/
// antipattern
function getData() {
}
// preferred
/* Benefits:
* 1. Makes it easier to understand "functions as an object".
* 2. It enforces good semicolon habits.
* 3. Doesn't have much of the baggage traditionally associated with functions and scope.
*/
var getData = function () {
};
// named function expression
/* Benefits:
* 1. Provides the debugger with an explicit function name: helps stack inspection.
* 2. Allows recursive functions: getData can call itself.
* Issues:
* 1. Can break IE, coffeescript doesn't do function names:
* https://github.com/jashkenas/coffee-script/issues/366
*/
var getData = function getData () {
};
// named function expression + 'F'
/* Benefits:
* 1. Get's rid of (anonymous function) in stack traces
* 2. Recurse by calling the name + 'F'
* 3. Doesn't break an IE (well, unless there's a function name collision of the sort described here: https://github.com/jashkenas/coffee-script/issues/366#issuecomment-242134)
*/
var getData = function getDataF () {
};
// References
// http://ejohn.org/blog/javascript-as-a-first-language/
// http://kangax.github.com/nfe/
</script>
</body>
</html>