Unsigned right shift assignment (>>>=)

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

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Operator: x >>>= y
Meaning:  x    = x >>> y

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

let b = -5; // (-00000000000000000000000000000101)
b >>>= 2;   // 1073741822 (00111111111111111111111111111110)

• Assignment operators in the JS guide
• Unsigned right shift operator