The Number.MIN_SAFE_INTEGER
constant represents the minimum safe integer in JavaScript (-(253 - 1)
).
To represent integers smaller than this, consider using BigInt
.
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Property attributes of Number.MIN_SAFE_INTEGER |
|
---|---|
Writable | no |
Enumerable | no |
Configurable | no |
Description
The MIN_SAFE_INTEGER
constant has a value of -9007199254740991
(-9,007,199,254,740,991 or about -9 quadrillion). The reasoning behind that number is that JavaScript uses double-precision floating-point format numbers as specified in IEEE 754 and can only safely represent numbers between -(253 - 1)
and 253 - 1
. See Number.isSafeInteger()
for more information.
Because MIN_SAFE_INTEGER
is a static property of Number
, you always use it as Number.MIN_SAFE_INTEGER
, rather than as a property of a Number
object you created.
Examples
Using MIN_SAFE_INTEGER
Number.MIN_SAFE_INTEGER // -9007199254740991 -(Math.pow(2, 53) - 1) // -9007199254740991
Specifications
Specification |
---|
ECMAScript (ECMA-262) The definition of 'Number.MIN_SAFE_INTEGER' in that specification. |
Browser compatibility
The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Desktop | Mobile | Server | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
MIN_SAFE_INTEGER | Chrome Full support 34 | Edge Full support 12 | Firefox Full support 31 | IE No support No | Opera Full support 21 | Safari Full support 9 | WebView Android Full support ≤37 | Chrome Android Full support 34 | Firefox Android Full support 31 | Opera Android Full support 21 | Safari iOS Full support 9 | Samsung Internet Android Full support 2.0 | nodejs Full support 0.12 |
Legend
- Full support
- Full support
- No support
- No support