code size optimization in kindOf.js

[millermedeiros]

You do realize that both end up compiling into the "same" code right? The only thing that reduces the file size is the {}.toString instead of using Object.prototype.toString (14 bytes) but with the cost of creating a new Object instance just to get the reference to the method... and the other stuff (ternary, returns) makes code harder to read:

Original

define(function(){var b=/^\[object (.*)\]$/,c=Object.prototype.toString;return function(a){return null===a?"Null":void 0===a?"Undefined":b.exec(c.call(a))[1]}});

Yours

define(function(){var b=/^\[object (.*)\]$/,c={}.toString;return function(a){return null===a?"Null":void 0===a?"undefined":b.exec(c.call(a))[1]}});

Minified using closure compiler.

I keep the named function with the return at the bottom because sometimes people might need the same method but on a non-AMD context, so copy and paste and an automated process works well.

Also notice that "" + UNDEF will give "undefined" while the older version would return "Undefined" (capital "U").

Ignoring it since it's premature optimization.