The Math.cbrt() function returns the cube root of a number, that is
Math.cbrt()
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Syntax
Math.cbrt(x)
Parameters
- x
-
A number.
Return value
The cube root of the given number.
Description
Because cbrt() is a static method of Math, you always use it as Math.cbrt(), rather than as a method of a Math object you created (Math is not a constructor).
Polyfill
For all , have so this can be emulated by the following function:
if (!Math.cbrt) { Math.cbrt = (function(pow) { return function cbrt(x){ // ensure negative numbers remain negative: return x < 0 ? -pow(-x, 1/3) : pow(x, 1/3); }; })(Math.pow); // localize Math.pow to increase efficiency }
Examples
Using Math.cbrt()
Math.cbrt(NaN); // NaN Math.cbrt(-1); // -1 Math.cbrt(-0); // -0 Math.cbrt(-Infinity); // -Infinity Math.cbrt(0); // 0 Math.cbrt(1); // 1 Math.cbrt(Infinity); // Infinity Math.cbrt(null); // 0 Math.cbrt(2); // 1.2599210498948732
Specifications
| Specification |
|---|
| ECMAScript Language Specification # sec-math.cbrt |
Browser compatibility
| Desktop | Mobile | Server | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | Deno | Node.js | |
cbrt |
38
|
12
|
25
|
No
|
25
|
8
|
38
|
38
|
25
|
25
|
8
|
3.0
|
1.0
|
0.12.0
|
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/Math/cbrt
