Run results for: Number constructor vs unary plus vs parseInt

Test name	Executions per second
✓ Number (with NaN)	133,550,008 Ops/sec
Unary + (with NaN)	128,934,136 Ops/sec
parseInt (with NaN)	123,709,656 Ops/sec
Number (with integer)	78,157,392 Ops/sec
Unary + (with float)	76,626,736 Ops/sec
Number (with float)	74,036,704 Ops/sec
Unary + (with integer)	73,983,024 Ops/sec
Number (with string integer)	63,153,728 Ops/sec
parseInt (with integer)	58,755,068 Ops/sec
parseInt (with float)	53,077,900 Ops/sec
Unary + (with string integer)	43,665,928 Ops/sec
parseInt (with string integer)	38,442,036 Ops/sec
parseInt (with string float)	8,629,276 Ops/sec
Unary + (with string float)	7,671,954 Ops/sec
Number (with string float)	7,397,962 Ops/sec

Test name

Executions per second

✓ Number (with NaN)

133,550,008 Ops/sec

Unary + (with NaN)

128,934,136 Ops/sec

parseInt (with NaN)

123,709,656 Ops/sec

Number (with integer)

78,157,392 Ops/sec

Unary + (with float)

76,626,736 Ops/sec

Number (with float)

74,036,704 Ops/sec

Unary + (with integer)

73,983,024 Ops/sec

Number (with string integer)

63,153,728 Ops/sec

parseInt (with integer)

58,755,068 Ops/sec

parseInt (with float)

53,077,900 Ops/sec

Unary + (with string integer)

43,665,928 Ops/sec

parseInt (with string integer)

38,442,036 Ops/sec

parseInt (with string float)

8,629,276 Ops/sec

Unary + (with string float)

7,671,954 Ops/sec

Number (with string float)

7,397,962 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);