Exponentiation assignment (**=)
The exponentiation assignment operator (**=) raises the value of a
variable to the power of the right operand.
Syntax
x **= y // x = x ** y
Examples
Using exponentiation assignment
// Assuming the following variable
// bar = 5
bar **= 2 // 25
bar **= 'foo' // NaN
Specifications
| Specification |
|---|
| ECMAScript Language Specification # sec-assignment-operators |
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