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huang-x-h/argumentNames.js

Last active August 29, 2015 14:07
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get function arguments name
Raw
argumentNames.js
// 摘自Secrets of the JavaScript Ninja
function argumentNames(fn) {
var found = /^[\s\(]*function[^(]*\(\s*([^)]*?)\s*\)/.exec(fn.toString());
return found && found[1] ? found[1].split(/,\s*/) : [];
}
argumentNames(function(x){})[0] === "x"
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