Run results for: Number constructor vs unary plus vs parseInt

Test name	Executions per second
✓ Number (with NaN)	140,789,440 Ops/sec
Unary + (with NaN)	137,489,216 Ops/sec
parseInt (with NaN)	137,478,208 Ops/sec
Number (with integer)	86,253,560 Ops/sec
Number (with float)	84,139,832 Ops/sec
Unary + (with float)	83,621,688 Ops/sec
Unary + (with integer)	81,472,896 Ops/sec
parseInt (with integer)	69,472,744 Ops/sec
parseInt (with float)	57,638,984 Ops/sec
parseInt (with string integer)	48,847,128 Ops/sec
Unary + (with string integer)	47,561,096 Ops/sec
Number (with string integer)	46,066,052 Ops/sec
parseInt (with string float)	5,905,913 Ops/sec
Unary + (with string float)	5,442,132 Ops/sec
Number (with string float)	5,155,490 Ops/sec

Test name

Executions per second

✓ Number (with NaN)

140,789,440 Ops/sec

Unary + (with NaN)

137,489,216 Ops/sec

parseInt (with NaN)

137,478,208 Ops/sec

Number (with integer)

86,253,560 Ops/sec

Number (with float)

84,139,832 Ops/sec

Unary + (with float)

83,621,688 Ops/sec

Unary + (with integer)

81,472,896 Ops/sec

parseInt (with integer)

69,472,744 Ops/sec

parseInt (with float)

57,638,984 Ops/sec

parseInt (with string integer)

48,847,128 Ops/sec

Unary + (with string integer)

47,561,096 Ops/sec

Number (with string integer)

46,066,052 Ops/sec

parseInt (with string float)

5,905,913 Ops/sec

Unary + (with string float)

5,442,132 Ops/sec

Number (with string float)

5,155,490 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);