Method get

src/Map.js:565–567

(shift, keyHash, key, notSetValue)

  }

  get(shift, keyHash, key, notSetValue) {
    return is(key, this.entry[0]) ? this.entry[1] : notSetValue;
  }

  update(ownerID, shift, keyHash, key, value, didChangeSize, didAlter) {
    const removed = value === NOT_SET;