Run results for: Powers of two

Run details:

User agent: Mozilla/5.0 (Windows NT 6.1; rv:53.0) Gecko/20100101 Firefox/53.0

Browser: Firefox 53

Operating system: Windows 7

Device Platform: Other

Date tested: 7 years ago

Test name	Executions per second
mm	16866734.0 Ops/sec
oo	3619007.8 Ops/sec
compiled first only	24365182.0 Ops/sec
compiled both	44693544.0 Ops/sec
compiled both with compiled powers	74335528.0 Ops/sec

Tests:

mm
var j = "MSKU947765"; var s = 0; var r = [1,2,4,8,16,32,64,128,256,512]; for (var e=0;e<4;e++) { var c = j.charCodeAt(e)-55; s+=(Math.floor(c/10.2)+c)*r[e]; }; for (var e=4;e<10;e++){ s+=(j.charCodeAt(e)-48)*r[e]; }; var d = s % 11 % 10; return d;
oo
var j = "MSKU947765"; var sum = 0; for (var i = 0; i < 10; i++) { var m = j.charCodeAt(i); if (i < 4) { m -= 55; m += parseInt(m / 11); } else { m -= 48; } sum += m * Math.pow(2, i); } var d = sum % 11; if (d === 10) d = 0; return d;
compiled first only
var j = "MSKU947765"; var s = 0; var r = [1,2,4,8,16,32,64,128,256,512]; var c = j.charCodeAt(0)-55; s+=(Math.floor(c/10.2)+c)*r[0]; var c = j.charCodeAt(1)-55; s+=(Math.floor(c/10.2)+c)*r[1]; var c = j.charCodeAt(2)-55; s+=(Math.floor(c/10.2)+c)*r[2]; var c = j.charCodeAt(3)-55; s+=(Math.floor(c/10.2)+c)*r[3]; for (var e=4;e<10;e++){ s+=(j.charCodeAt(e)-48)*r[e]; }; var d = s % 11 % 10; return d;
compiled both
var j = "MSKU947765"; var s = 0; var r = [1,2,4,8,16,32,64,128,256,512]; var c = j.charCodeAt(0)-55; s+=(Math.floor(c/10.2)+c)*r[0]; var c = j.charCodeAt(1)-55; s+=(Math.floor(c/10.2)+c)*r[1]; var c = j.charCodeAt(2)-55; s+=(Math.floor(c/10.2)+c)*r[2]; var c = j.charCodeAt(3)-55; s+=(Math.floor(c/10.2)+c)*r[3]; s+=(j.charCodeAt(4)-48)*r[4]; s+=(j.charCodeAt(5)-48)*r[5]; s+=(j.charCodeAt(6)-48)*r[6]; s+=(j.charCodeAt(7)-48)*r[7]; s+=(j.charCodeAt(8)-48)*r[8]; s+=(j.charCodeAt(9)-48)*r[9]; var d = s % 11 % 10; return d;
compiled both with compiled powers
var j = "MSKU947765"; var s = 0; var c = j.charCodeAt(0)-55; s+=(Math.floor(c/10.2)+c)*1; var c = j.charCodeAt(1)-55; s+=(Math.floor(c/10.2)+c)*2; var c = j.charCodeAt(2)-55; s+=(Math.floor(c/10.2)+c)*4; var c = j.charCodeAt(3)-55; s+=(Math.floor(c/10.2)+c)*8; s+=(j.charCodeAt(4)-48)*16; s+=(j.charCodeAt(5)-48)*32; s+=(j.charCodeAt(6)-48)*64; s+=(j.charCodeAt(7)-48)*128; s+=(j.charCodeAt(8)-48)*256; s+=(j.charCodeAt(9)-48)*512; var d = s % 11 % 10; return d;

Run results for: Powers of two

If they should be written in an array or in the loop as we go

mm

oo

compiled first only

compiled both

compiled both with compiled powers