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viebel/nameOfArgs

Created February 27, 2014 15:42
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In javascript, retrieve the names of the arguments
Raw
nameOfArgs
function namesOfArgs(fn) {
var STRIP_COMMENTS = /((\/\/.*$)|(\/\*[\s\S]*?\*\/))/gm,
FN_ARGS = /^function\s*[^\(]*\(\s*([^\)]*)\)/m,
FN_ARG_SPLIT = /,/,
fnText = fn.toString().replace(STRIP_COMMENTS, ''),
argDecl = fnText.match(FN_ARGS);
return argDecl[1].split(FN_ARG_SPLIT)
}
namesOfArgs(function(a,b,c,v) {}) // ['a','b','c','v']
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