@dimensionalpocket/flags

Bitwise flag management for Javascript.

Usage

Create your flags as constants with values in powers of two then use them on a new Flags instance:

import Flags from '@dimensionalpocket/flags'

const FLAG_ONE = 1
const FLAG_TWO = 2
const FLAG_THREE = 4

const flags = new Flags()

flags.check(FLAG_ONE) // => false

flags.enable(FLAG_ONE)
flags.check(FLAG_ONE) // => true

flags.disable(FLAG_ONE)
flags.check(FLAG_ONE) // => false

flags.check(FLAG_TWO) // => false
flags.enable(FLAG_TWO)
flags.check(FLAG_TWO) // => true
flags.enable(FLAG_THREE)
flags.list() // => [2, 4]

// Activate or deactivate multiple flags at once by sending sums
flags.enable(FLAG_ONE + FLAG_TWO)
flags.disable(FLAG_TWO + FLAG_THREE)

License

MIT