Chainable

common interface

these core functions call chain.store, when updating the store, this is returned, otherwise the value is returned

👍👎 the general rule of thumb is:

• is it a list? use Set
• otherwise... use Map

definition

class Chainable {
  public parent?: Chainable
  public compose: Composer

  constructor(parent: ParentType)

  public readonly length: number
  public end(): Chainable | any

  // when string, uses this.has(condition)
  public when(condition: truthy | string, trueBrancher?: Fn, falseBrancher?: Fn): Chainable

  // clears the store, resets to empty
  public clear(): Chainable
  public delete(key: Primitive): Chainable
  public has(value: Primitive): boolean

  public [Symbol.iterator](): void
  public [Symbol.toPrimitive](hint: string): string | number | any
  public [Symbol.hasInstance]: boolean
}

• .merge & .from