This indeed woks : function isObj(o){ return
Object.prototype.toString.call(o) === '[object Object]' }
But I do not like it ;o) It does not seem very exact somehow ... I
mean using a string literal, and all that...
I would suggest this very simple and robust little set of functions :
// and now much simpler implementation
function isWhat(o){ return Object.prototype.toString.call(o).match(/\w
+/g)[1]; }
function isObject(x) { return isWhat(x) === isWhat({}); }
function isArray(x) { return isWhat(x) === isWhat([]); }
function isFunction(x) { return isWhat(x) === isWhat(Function()); }
function isString(x) { return isWhat(x) === isWhat(""); }
function isNumber(x) { return isWhat(x) === isWhat(1); }
No obfuscations here, and no "awesome" code. This seems very simple
and robust solution to me.
--DBJ
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