Run results for: Fat Arrow

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/53.0.2785.143 Safari/537.36

Browser: Chrome 53

Operating system: Windows

Device Platform: Other

Date tested: 7 years ago

Tests:

No fat arrow
var Obj = (function () { function Obj(a, b) { this.a = a; this.b = b; } ; Obj.prototype.c = function (v) { return this.a + v; }; Obj.prototype.d = function (v) { return this.a + this.b + v; }; return Obj; }()); var obj = new Obj(1, 2); var e = 1; var e = obj.c(e) + obj.d(e + 1);
With fat arrow
function makeObj(a, b) { return { c: function (v) { return a + v; }, d: function (v) { return a + b + v; } }; } var obj = makeObj(1, 2); var e = 1; var e = obj.c(e) + obj.d(e + 1);
With fat arrow and let
function makeObj(_a, _b) { var a = _a; var b = _b; return { c: function (v) { return a + v; }, d: function (v) { return a + b + v; } }; } var obj = makeObj(1, 2); var e = 1; var e = obj.c(e) + obj.d(e + 1);