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

Get Bit

function getBit(number, bitPosition) {
  return (number & (1 << bitPosition)) === 0 ? 0 : 1;
}

Set Bit

function setBit(number, bitPosition) {
  return number | (1 << bitPosition);
}

Clear Bit

function clearBit(number, bitPosition) {
  const mask = ~(1 << bitPosition);
  return number & mask;
}

Update Bit

function updateBit(number, bitPosition, bitValue) {
  const bitValueNormalized = bitValue ? 1 : 0;
  const clearMask = ~(1 << bitPosition);
  return (number & clearMask) | (bitValueNormalized << bitPosition);
}

Examples has been taken from JavaScript Algorithms and Data Structures repository.

I built a BitSet class with the help of @cletus information:

function BitSet() {
    this.n = 0;
}

BitSet.prototype.set = function(p) {
    this.n |= (1 << p);
}

BitSet.prototype.test = function(p) {
    return (this.n & (1 << p)) !== 0;
}

BitSet.prototype.clear = function(p) {
    this.n &= ~(1 << p);
}

BitSet.prototype.toggle = function(p) {
    this.n ^= (1 << p);
}