parse Str 2 Num: Number() vs parseInt() vs plus vs bitwise vs Math.* vs JSON (v66)

Revision 66 of this benchmark created on

Setup

function getRandomNumberString(){
    var response = "";
    for (var i = 0; i < Math.floor(Math.random() * 10); i++){
     response += Math.floor(Math.random() * i * 10);
    }
    return response;
    }

Test runner

Ready to run.

Testing in
TestOps/sec
Number Constructor
Number(getRandomNumberString());
ready
parseInt
parseInt(getRandomNumberString());
ready
Plus operator
+getRandomNumberString();
ready
Bitwise >> (right shift)
getRandomNumberString() >> 0;
ready
Multiply (force cast)
getRandomNumberString() * 1;
ready
Bitwise NOT
~~getRandomNumberString();
ready
parseInt with base argument
parseInt(getRandomNumberString(), 10);
ready
Bitwise OR
getRandomNumberString() | 0
ready
minus 0
getRandomNumberString() - 0;
ready
floor conversion
Math.floor(getRandomNumberString())
ready
round conversion
Math.round(getRandomNumberString())
ready
parseFloat
parseFloat(getRandomNumberString())
ready
parseFloat with base argument
parseFloat(getRandomNumberString(), 10)
ready
JSON.parse
JSON.parse(getRandomNumberString())
ready

Revisions

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