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

The MIN_VALUE property is the number closest to 0, not the most negative number, that JavaScript can represent.

Number.MIN_VALUE is 5e-324, i.e. the smallest positive number that can be represented within float precision, i.e. that's as close as you can get to zero. Values smaller than MIN_VALUE ("underflow values") are converted to 0.

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

BCD tables only load in the browser

See also