Javascript - Global Number() Function

Description

The Number() function converts the object to a number.

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

If the parameter is a Date object, the Number() function returns the number of milliseconds since midnight January 1, 1970 UTC.

Syntax

Number(object)

Parameter Values

Parameter	Require	Description
object	Optional.	A JavaScript object. If no argument is provided, it returns 0.

Return

A Number. Returns different object values to their numbers.

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

If no argument is provided, it returns 0.

Example

Convert different object values to their numbers:

Demo

//convert variables to numbers.

var x1 = true;/*  w w  w  .  ja va 2 s.  co m*/
var x2 = false;
var x3 = new Date();
var x4 = "999";
var x5 = "999 888";

var n =
Number(x1) + "\n" +
Number(x2) + "\n" +
Number(x3) + "\n" +
Number(x4) + "\n" +
Number(x5);
console.log(n);