Run results for: Number constructor vs unary plus vs parseInt

Test name	Executions per second
✓ Unary + (with NaN)	261,015,344 Ops/sec
Number (with NaN)	24,614,624 Ops/sec
parseInt (with NaN)	23,948,368 Ops/sec
Unary + (with float)	22,854,592 Ops/sec
Number (with float)	12,122,711 Ops/sec
Unary + (with integer)	12,083,534 Ops/sec
parseInt (with float)	11,678,414 Ops/sec
Unary + (with string integer)	11,300,315 Ops/sec
parseInt (with integer)	8,245,798 Ops/sec
Number (with integer)	8,121,842 Ops/sec
parseInt (with string integer)	7,854,801 Ops/sec
Number (with string integer)	7,839,752 Ops/sec
Unary + (with string float)	6,019,896 Ops/sec
parseInt (with string float)	5,673,597 Ops/sec
Number (with string float)	4,875,616 Ops/sec

Test name

Executions per second

✓ Unary + (with NaN)

261,015,344 Ops/sec

Number (with NaN)

24,614,624 Ops/sec

parseInt (with NaN)

23,948,368 Ops/sec

Unary + (with float)

22,854,592 Ops/sec

Number (with float)

12,122,711 Ops/sec

Unary + (with integer)

12,083,534 Ops/sec

parseInt (with float)

11,678,414 Ops/sec

Unary + (with string integer)

11,300,315 Ops/sec

parseInt (with integer)

8,245,798 Ops/sec

Number (with integer)

8,121,842 Ops/sec

parseInt (with string integer)

7,854,801 Ops/sec

Number (with string integer)

7,839,752 Ops/sec

Unary + (with string float)

6,019,896 Ops/sec

parseInt (with string float)

5,673,597 Ops/sec

Number (with string float)

4,875,616 Ops/sec

Tests:

Number (with string integer)
var numberStrInt = Number(Math.floor(1000 * Math.random()).toString());
Unary + (with string integer)
var unaryStrInt = +Math.floor(1000 * Math.random()).toString();
parseInt (with string integer)
var parseStrInt = parseInt(Math.floor(1000 * Math.random()).toString(), 10);
Number (with string float)
var numberStrFloat = Number((1000 * Math.random()).toString());
Unary + (with string float)
var unaryStrFloat = +(1000 * Math.random()).toString();
parseInt (with string float)
var parseStrFloat = parseInt((1000 * Math.random()).toString(), 10);
Number (with integer)
var numberNumInt = Number(Math.floor(1000 * Math.random()));
Unary + (with integer)
var unaryNumInt = +Math.floor(1000 * Math.random());
parseInt (with integer)
var parseNumInt = parseInt(Math.floor(1000 * Math.random()), 10);
Number (with float)
var numberNumFloat = Number(1000 * Math.random());
Unary + (with float)
var unaryNumFloat = +(1000 * Math.random());
parseInt (with float)
var parseNumFloat = parseInt((1000 * Math.random()), 10);
Number (with NaN)
var numberNaN = Number("hello");
Unary + (with NaN)
var unaryNaN = +("hello");
parseInt (with NaN)
var parseNaN = parseInt("hello", 10);