function O() { this.x0 = 1; this.x1 = 1; this.x2 = 1; this.x3 = 1; this.x4 = 1; this.x5 = 1; } function f() { var arr = []; for (var i=0; i<1500; i++) arr.push(new O); for (var i=0; i<1500; i++) { var o = arr[i]; o.x10 = 1; o.x11 = 1; o.x12 = 1; o.x13 = 1; o.x14 = 1; o.x15 = 1; o.x16 = 1; o.x17 = 1; o.x18 = 1; o.x19 = 1; o.x20 = 1; } } f();