Run results for: Number Conversion Speed

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/142.0.0.0 Safari/537.36

Browser: Chrome 142

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 5 months ago

Test name	Executions per second
unary	182780448.0 Ops/sec
number	169903936.0 Ops/sec
numberNum	134730096.0 Ops/sec
int	166783216.0 Ops/sec
intNum	164550752.0 Ops/sec
float	44447484.0 Ops/sec
floatNum	45463460.0 Ops/sec
nanNull	40601948.0 Ops/sec

Script Preparation code:

var mb1 = 'abc';
var mb2 = '123';

var unary = (a) => {
  try {
    +a;
    return true;
  } catch {
    return false;
  }
};
var number = (a) => !isNaN(Number(a));
var numberNum = (a) => !Number.isNaN(Number(a));
var float = (a) => !isNaN(parseFloat(a));
var floatNum = (a) => !Number.isNaN(parseFloat(a));
var int = (a) => !isNaN(parseInt(a));
var intNum = (a) => !Number.isNaN(parseInt(a));
var nanNull = (a) => a !== null && !isNaN(a);

Tests:

unary
unary(mb1); unary(mb2);
number
number(mb1); number(mb2);
numberNum
numberNum(mb1); numberNum(mb2);
int
int(mb1); int(mb2);
intNum
intNum(mb1); intNum(mb2);
float
float(mb1); float(mb2);
floatNum
floatNum(mb1); floatNum(mb2);
nanNull
nanNull(mb1); nanNull(mb2);