Run results for: X.Y string to ~~ vs parseInt vs Number vs parseFloat vs +0 vs /... - MeasureThat.net

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36

Browser: Chrome 114

Operating system: Windows

Device Platform: Desktop

Date tested: 10 months ago

Test name	Executions per second
notnot	5298172.0 Ops/sec
parseInt	1914263.0 Ops/sec
Number	1713514.0 Ops/sec
parseFloat	1729915.0 Ops/sec
*1	2307597.0 Ops/sec
-0	707449.9 Ops/sec
+	1311244.0 Ops/sec
<<0	3135835.0 Ops/sec
/1	3295964.0 Ops/sec

Website performance monitoring

Script Preparation code:

var strA = "1912.62";
var strB = "1912.63";

Tests:

notnot
var res = ~~strA;
parseInt
var res = parseInt(strA);
Number
var res = Number(strA);
parseFloat
var res = parseFloat(strA);
*1
var res = strA * 1;
-0
var res = strA - 0;
+
var res = +strA;
<<0
var res = strA<<0;
/1
var res = strA / 1;