function shouldBe(actual, expected) { if (actual !== expected) throw new Error('bad value: ' + actual); } (function () { function indexOf(array, value) { return array.indexOf(value); } noInline(indexOf); var array = new Array(100); array.push(10); for (var i = 0; i < 1e5; ++i) shouldBe(indexOf(array, 0), -1); }()); (function () { function indexOf(array, value) { return array.indexOf(value); } noInline(indexOf); var array = new Array(100); array.push(25.5); for (var i = 0; i < 1e5; ++i) shouldBe(indexOf(array, 0), -1); }());