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Right shift assignment (>>=)

The right shift assignment operator (>>=) moves the specified amount of bits to the right and assigns the result to the variable.

Try it

Syntax

x >>= y // x = x >> y

Examples

Using right shift assignment

let a = 5; //   (00000000000000000000000000000101)
a >>= 2;   // 1 (00000000000000000000000000000001)

let b = -5; //  (-00000000000000000000000000000101)
b >>= 2;  // -2 (-00000000000000000000000000000010)

Specifications

Specification
ECMAScript Language Specification
# sec-assignment-operators

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
Right_shift_assignment
1
12
1
3
3
1
4.4
18
4
10.1
1
1.0
1.0
0.10.0

See also

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https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Right_shift_assignment