Run results for: Invert Colors

Run details:

User agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.113 Safari/537.36

Browser: Chrome 60

Operating system: Windows 7

Device Platform: Other

Date tested: 7 years ago

Test name	Executions per second
Internet	121154.5 Ops/sec
Mine	1510484.5 Ops/sec

Tests:

Internet
function invertHex(hexnum) { hexnum = hexnum.toUpperCase(); var splitnum = hexnum.split(""); var resultnum = ""; var simplenum = "FEDCBA9876".split(""); var complexnum = new Array(); complexnum.A = "5"; complexnum.B = "4"; complexnum.C = "3"; complexnum.D = "2"; complexnum.E = "1"; complexnum.F = "0"; for(i=0; i<6; i++){ if(!isNaN(splitnum[i])) { resultnum += simplenum[splitnum[i]]; } else if(complexnum[splitnum[i]]){ resultnum += complexnum[splitnum[i]]; } else { alert("Hex colors must only include hex numbers 0-9, and A-F"); return false; } } return resultnum; } invertHex("123456");
Mine
function invertHex(hexnum) { return ('000000' + (0xffffff - parseInt(hexnum, 16)).toString(16)).slice(-6); } invertHex("123456");