Methods for keeping this

I find that I quite often need to preserve this when calling functions that takes callbacks. I have used something similar to the code below, but I would like to hear what you think of the matter.

Is there an easy way to support this use case?

function promise (obj, fn) {
  return pify(obj[fn]).bind(obj)
}

await promise(linus, 'walk')(100, 'miles')
console.log('Linus walked 100 miles')

// vs.

linus.walk(100, 'miles', () => console.log('Linus walked 100 miles'))

[sindresorhus]

Yeah, not worth saving just a few characters. Using bind is a lot clearer too.

[LinusU]

I’ve rarely encountered the need to use bind though. Most API’s in the Node.js world are luckily not using this.

True, I guess that this is good enough for now 👍 thanks for the discussion