JavaScript performance comparison

Revision 9 of this test case created

Preparation code

var ASMTemplate = function(stdlib) {
    var sqrt = Math.sqrt;

    function square(x) {
        x = +x;
        return +(x*x);

    function diag(x, y) {
        x = +x;
        y = +y;
        return +sqrt(+square(x) + +square(y));

    return { diag: diag };

var generateASM = function() {
   var template = 'function test(window) { "use asm;"' + ASMTemplate.toString().slice(19, -1) + '}';
   return console.log(eval(template));

var one = generateASM();
var two = generateASM();

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Testing in unknown unknown
Test Ops/sec
one.diag(3, 4)
two.diag(3, 4);

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1 comment

Jon Kleiser commented :

With Rev. 9 in Firefox (27.0) I get "TypeError: one is undefined" and "TypeError: two is undefined". In Safari and Chrome I get similar errors.

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