promise-find

Find the promise call that satisfies the testing function.

Installation

npm install promise-find

Usage

const promiseFind = require('promise-find')

promiseFind([
  () => Promise.resolve(null),
  () => Promise.resolve('match'),
  () => Promise.reject(new Error('never called')),
  () => Promise.resolve('never called either')
]).then(function(result) {
  console.log(result) // prints 'match'
})

API

promiseFind(list, test)

Returns a Promise that will resolve to the result of the first function call that passes the test or null if no one passes the test. If any function fails, the promise will be a rejected the error.

list

An array of functions that receive no arguments and return either a value or a promis.

test

The function used to check for a match. It defaults to the "identity" function so any truthy value will pass.

License

MIT