Number.MIN_VALUE

The Number.MIN_VALUE property represents the smallest positive numeric value representable in JavaScript.

Property attributes of Number.MIN_VALUE
Writable no
Enumerable no
Configurable no

Description

Number.MIN_VALUE is the smallest positive number (not the most negative number) that can be represented within float precision — in other words, the number closest to 0. That’s approximately 5E-324. The ECMAScript spec doesn’t define a precise value that implementations are required to support — instead the spec says, “must be the smallest non-zero positive value that can actually be represented by the implementation”. But in practice, its precise value in browsers and in Node.js is 2^-1074.

Because MIN_VALUE is a static property of Number, you always use it as Number.MIN_VALUE, rather than as a property of a Number object you created.

Examples

Using MIN_VALUE

The following code divides two numeric values. If the result is greater than or equal to MIN_VALUE, the func1 function is called; otherwise, the func2 function is called.

if (num1 / num2 >= Number.MIN_VALUE) {
  func1();
} else {
  func2();
}

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
MIN_VALUE
1
12
1
4
3
1
1
18
4
10.1
1
1.0

See also

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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/MIN_VALUE