Checking types (v2)

Revision 2 of this benchmark created on

Description

How fast do checking types work?...

Setup

var str = "hello, world!";
var num = 503;
var obj = {hello: 'world'};
var arr = [obj, num, str];

function isStrT(str){
	return typeof str === 'string';
}
function isStrC(str){
	return str.constructor === String;
}

Test runner

Ready to run.

Testing in
TestOps/sec
typeof
var resultStr = typeof str === 'string';
var resultNum = typeof num === 'string';
var resultObj = typeof obj === 'string';
var resultArr = typeof arr === 'string';
resultStr = typeof str === 'string';
ready
constructor
var resultStr = str.constructor === String;
var resultNum = num.constructor === String;
var resultObj = obj.constructor === String;
var resultArr = arr.constructor === String;
resultStr = str.constructor === String;
ready
typeof FN
var resultStr = isStrT(str);
var resultNum = isStrT(num);
var resultObj = isStrT(obj);
var resultArr = isStrT(arr);
resultStr = isStrT(str);
ready
constructor FN
var resultStr = isStrC(str);
var resultNum = isStrC(num);
var resultObj = isStrC(obj);
var resultArr = isStrC(arr);
resultStr = isStrC(str);
ready

Revisions

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