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Any way to dry up chained methods? #379

@drewpereli

Description

@drewpereli

First of all, great library, thank you. I'm wondering if there's a good way to dry up some of my chaining. Say I have something like this:

new TypeIt('#my-el')
  .type('abc')
  .move(null, { instant: true })
  .type('\n')
  .move(null, { instant: true })
  .type('123')
  .move(null, { instant: true })
  .type('\n')
  .move(null, { instant: true })
  .type('456')
  .go();

Is it possible to encapsulate the

  .move(null, { instant: true })
  .type('\n')
  .move(null, { instant: true })

stuff into its own function somehow?

I know this works:

let t = new TypeIt('#my-el').type('abc');

t = typeAtStart(t, '123');
t = typeAtStart(t, '456');

t.go();

function typeAtStart(typeIt: TypeIt, text: string) {
  return typeIt
    .move(null, { instant: true })
    .type('\n')
    .move(null, { instant: true })
    .type(text);
}

But I'm wondering if there's a more idiomatic way to do it, maybe without having to break up the chain.

I tried doing it like this:

new TypeIt('#$my-el')
  .type('abc')
  .exec((t) => typeAtStart(t, '123'))
  .exec((t) => typeAtStart(t, '456'))
  .go();

function typeAtStart(typeIt: TypeIt, text: string) {
  return typeIt
    .move(null, { instant: true })
    .type('\n')
    .move(null, { instant: true })
    .type(text);
}

But that doesn't seem to work.

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