Number.MIN_VALUE

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

Description

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

MIN_VALUE has a value of approximately 5e-324. 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

Specification	Status	Comment
ECMAScript 1st Edition (ECMA-262)	Standard	Initial definition. Implemented in JavaScript 1.1.
ECMAScript 5.1 (ECMA-262) The definition of 'Number.MIN_VALUE' in that specification.	Standard
ECMAScript 2015 (6th Edition, ECMA-262) The definition of 'Number.MIN_VALUE' in that specification.	Standard
ECMAScript 2017 Draft (ECMA-262) The definition of 'Number.MIN_VALUE' in that specification.	Draft

Browser compatibility

See also

• Number.MAX_VALUE