Number Properties
| Col 1 | Col 2 |
|---|---|
| Number.EPSILON Number.MAX_VALUE Number.MIN_VALUE | Number.MAX_SAFE_INTEGER Number.MIN_SAFE_INTEGER Number.POSITIVE_INFINITY Number.NEGATIVE_INFINITY Number.NaN |
Note: See Also: Numbers Tutorial Number Methods Number Reference
JavaScript EPSILON
Number.EPSILON is the difference between the smallest floating point number greater than 1 and 1.
Example
let x = Number.EPSILON;
Note:
Number.EPSILONis an ES6 feature. It does not work in Internet Explorer.
JavaScript MAX_VALUE
Number.MAX_VALUE is a constant representing the largest possible number in JavaScript.
Example
let x = Number.MAX_VALUE;
Note: Number Properties Cannot be Used on Variables Number properties belong to the JavaScript Number Object. These properties can only be accessed as
Number.MAX_VALUE. Using x.MAX_VALUE, where x is a variable or a value, will returnundefined:
Example
let x = 6;
x.MAX_VALUE
JavaScript MIN_VALUE
Number.MIN_VALUE is a constant representing the lowest possible number in JavaScript.
Example
let x = Number.MIN_VALUE;
Minimum and Maximum Safe Integers
ES6 added max and min properties to the Number object:
Number.MAX_SAFE_INTEGERNumber.MIN_SAFE_INTEGER
JavaScript MIN_SAFE_INTEGER
Number.MIN_SAFE_INTEGER represents the minimum safe integer in JavaScript.
Number.MIN_SAFE_INTEGER is -(253 - 1).
Example
let x = Number.MIN_SAFE_INTEGER;
JavaScript MAX_SAFE_INTEGER
Number.MAX_SAFE_INTEGER represents the maximum safe integer in JavaScript.
Number.MAX_SAFE_INTEGER is (253 - 1).
Example
let x = Number.MAX_SAFE_INTEGER;
JavaScript POSITIVE_INFINITY
Example
let x = Number.POSITIVE_INFINITY;
JavaScript NEGATIVE_INFINITY
Example
let x = Number.NEGATIVE_INFINITY;
JavaScript NaN - Not a Number
NaN is a JavaScript reserved word for a number that is not a legal number.
Examples
let x = Number.NaN;
Note: Safe integers are all integers from -(253 - 1) to +(253 - 1). This is safe: 9007199254740991. This is not safe: 9007199254740992.
Note: Complete JavaScript Reference For a complete reference to all JavaScript properties and methods, with full descriptions and many examples, go to: W3Schools' Full JavaScript Reference. The reference inludes all JavaScript updates from 1999 to 2025.
