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Shorthand

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James edited this page May 30, 2017 · 3 revisions

👂 shorthand 🎼

shorthand easy helper functions

🌐 api

bindMethods

iterates over methods, binds them to the instance

chain.bindMethods(methods: Array<string>): Chain

chainWrap

iterates over methods, wraps them so their value returns Chain

chain.chainWrap(methods: Array<string>): Chain
example
class Eh extends Chain {
  constructor(parent) {
    super(parent)
    this.chainWrap(['canada'])
  }
  canada(arg) {
    console.log(arg)
  }
}

const eh = new Eh()
eh.canada('log me') // this now returns Eh

setIfEmpty

set the value if it hasn't been set already

syntax
.setIfEmpty(key: Primative | Object, value: any)
example
new Chain()
  .set('eh', true)
  .setIfEmpty('eh', false)    // eh is already set, ignored
  .setIfEmpty('canada', true) // canada is not set, so it .sets it

// same as doing this
// if (chain.has('eh') === false) chain.set('eh', false)
// or
// chain.when(!chain.has('eh'), c => c.set('eh', false))

return(val): val

simply a function to return a value, to keep a single chain when there are scoped variables

wrap(val): Chain

same as return but calls val if it's a function, and returns chain

🔗 related

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