How do you set, clear and toggle a single bit in JavaScript?

To get a bit mask:

var mask = 1 << 5; // gets the 6th bit

To test if a bit is set:

if ((n & mask) != 0) {
  // bit is set
} else {
  // bit is not set

To set a bit:

n |= mask;

To clear a bit:

n &= ~mask;

To toggle a bit:

n ^= mask;

Refer to the Javascript bitwise operators.

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