Multiplication assignment (*=)
The multiplication assignment (*=) operator performs multiplication on the two operands and assigns the result to the left operand.
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Syntax
js
x *= y
Description
x *= y is equivalent to x = x * y, except that the expression x is only evaluated once.
Examples
Multiplication assignment using numbers
js
let bar = 5;
bar *= 2; // 10
Other non-BigInt values are coerced to numbers:
js
let bar = 5;
bar *= "foo"; // NaN
Multiplication assignment using BigInts
js
let foo = 3n;
foo *= 2n; // 6n
foo *= 1; // TypeError: Cannot mix BigInt and other types, use explicit conversions
Specifications
| Specification |
|---|
| ECMAScript Language Specification # sec-assignment-operators |
Browser compatibility
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Multiplication assignment ( x *= y) | |||||||||||||