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
wiki	361861.2 Ops/sec
me	3059654.8 Ops/sec

Tests:

wiki
var container = "MRKU576275"; var con = container.toUpperCase(); var sum = 0; for (i = 0; i < 10; i++) { var n = con.substr(i, 1); if (i < 4) { n = "0123456789A?BCDEFGHIJK?LMNOPQRSTU?VWXYZ".indexOf(con.substr(i, 1)); }; n *= Math.pow(2, i); sum += n; }; sum %= 11; sum %= 10; return sum
me
var container = "MRKU576275"; var con = container.toUpperCase(); var p = [1,2,4,8,16,32,64,128,256,512]; var s = 0; for (var n=0;n<10;n++) { if (n<4) { var c = con.charCodeAt(n)-55; s+=(Math.floor(c/10.2)+c)*p[n]; } else { s+=Number(con.charAt(n))*p[n]; }; }; var sum = s % 11 % 10; return sum