fliphub-monorepo/modules/flipchain/ChainedSet.js

the builder of builders

const Chainable = require('./Chainable')

class ChainedSet extends Chainable {
  constructor(parent) {
    super(parent)
    this.store = new Set()
  }
  add(value) {
    this.store.add(value)
    return this
  }
  prepend(value) {
    this.store = new Set([value, ...this.store])
    return this
  }
  clear() {
    this.store.clear()
    return this
  }
  delete(value) {
    this.store.delete(value)
    return this
  }
  values() {
    return [...this.store]
  }
  has(value) {
    return this.store.has(value)
  }
  merge(arr) {
    this.store = new Set([...this.store, ...arr])
    return this
  }
  when(condition, trueBrancher = Function.prototype, falseBrancher = Function.prototype) {
    if (condition) {
      trueBrancher(this)
    } else {
      falseBrancher(this)
    }

    return this
  }
}

module.exports = ChainedSet