The exponentiation assignment operator (**=
) raises the value of a variable to the power of the right operand.
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Syntax
Operator: x **= y Meaning: x = x ** y
Examples
Using exponentiation assignment
// Assuming the following variable // bar = 5 bar **= 2 // 25 bar **= 'foo' // NaN
Specifications
Specification |
---|
ECMAScript (ECMA-262) The definition of 'Assignment operators' in that specification. |
Browser compatibility
The compatibility table on 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 | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Exponentiation assignment (x **= y ) | Chrome Full support 52 | Edge Full support 14 | Firefox Full support 52 | IE No support No | Opera Full support 39 | Safari Full support 10.1 | WebView Android Full support 51 | Chrome Android Full support 52 | Firefox Android Full support 52 | Opera Android Full support 41 | Safari iOS Full support 10.3 | Samsung Internet Android Full support 6.0 | nodejs
Full support
7.0.0
|
Legend
- Full support
- Full support
- No support
- No support
- User must explicitly enable this feature.
- User must explicitly enable this feature.