Run results for: Number constructor vs unary plus vs parseInt

Test name	Executions per second
✓ Unary + (with NaN)	844,908,736 Ops/sec
parseInt (with NaN)	9,154,039 Ops/sec
Number (with NaN)	8,723,734 Ops/sec
Unary + (with float)	8,568,664 Ops/sec
Number (with float)	4,459,806 Ops/sec
Unary + (with integer)	4,455,656 Ops/sec
parseInt (with float)	4,039,367 Ops/sec
Unary + (with string integer)	3,959,345 Ops/sec
Number (with integer)	3,000,171 Ops/sec
parseInt (with integer)	2,973,418 Ops/sec
parseInt (with string integer)	2,700,141 Ops/sec
Number (with string integer)	2,689,554 Ops/sec
Unary + (with string float)	2,315,956 Ops/sec
parseInt (with string float)	2,194,452 Ops/sec
Number (with string float)	1,711,632 Ops/sec

Test name

Executions per second

✓ Unary + (with NaN)

844,908,736 Ops/sec

parseInt (with NaN)

9,154,039 Ops/sec

Number (with NaN)

8,723,734 Ops/sec

Unary + (with float)

8,568,664 Ops/sec

Number (with float)

4,459,806 Ops/sec

Unary + (with integer)

4,455,656 Ops/sec

parseInt (with float)

4,039,367 Ops/sec

Unary + (with string integer)

3,959,345 Ops/sec

Number (with integer)

3,000,171 Ops/sec

parseInt (with integer)

2,973,418 Ops/sec

parseInt (with string integer)

2,700,141 Ops/sec

Number (with string integer)

2,689,554 Ops/sec

Unary + (with string float)

2,315,956 Ops/sec

parseInt (with string float)

2,194,452 Ops/sec

Number (with string float)

1,711,632 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);