Number.constructor

The Number constructor.

If called as a function, it converts the given value to a number and returns a primitive value of type "number". If called as a constructor with the new operator, it returns a new Number object of type "object".

Syntax

Number(value?)
new Number(value?)

Parameters

• value optional

  The value to convert to a number.

Return value

A number.

If a value is not provided, 0 is returned.

If a value cannot be converted to a number, NaN is returned.

Examples

Number("123")

123

Number(true)

1

Number(false)

0

Number("")

0

Number(42)

42

print(typeof new Number("123"))
print(typeof Number("123"))

object
number