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Run results for: string to ~~ vs parseInt vs Number vs parseFloat vs +0...

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Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36
Chrome 114
Windows
Desktop
one year ago
Test name Executions per second
notnot 4703512.0 Ops/sec
parseInt 2436094.2 Ops/sec
Number 2598066.5 Ops/sec
parseFloat 2452086.0 Ops/sec
+0 9342795.0 Ops/sec
*1 4766253.0 Ops/sec
-0 4701606.5 Ops/sec
+ 4896960.5 Ops/sec
<<0 4729085.5 Ops/sec
Script Preparation code:
AخA
 
var strA = "1688805315905";
var strB = "1688805315906";
Tests:

  • notnot

     
    var res = ~~strA;

  • parseInt

     
    var res = parseInt(strA);

  • Number

     
    var res = Number(strA);

  • parseFloat

     
    var res = parseFloat(strA);

  • +0

     
    var res = strA + 0;

  • *1

     
    var res = strA * 1;

  • -0

     
    var res = strA - 0;

  • +

     
    var res = +strA;

  • <<0

     
    var res = strA<<0;