Number() constructor
The Number()
creates a Number
object.
Syntax
new Number(value)
Parameters
value
-
The numeric value of the object being created.
Examples
Creating Number objects
const a = new Number('123'); // a === 123 is false const b = Number('123'); // b === 123 is true a instanceof Number; // is true b instanceof Number; // is false
Specifications
Browser compatibility
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
Number |
1 |
12 |
1 |
3 |
3 |
1 |
1 |
18 |
4 |
10.1 |
1 |
1.0 |
See also
- A polyfill of modern
Number
behavior (with support binary and octal literals) is available incore-js
NaN
- The
Math
global object - Integers with arbitrary precision:
BigInt
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https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/Number