attempts/index.js

Try func with different args.

function attempts (vals, fn) {
  if (fn instanceof Array && typeof vals === 'function') {
    var assign;
    (assign = [vals, fn], fn = assign[0], vals = assign[1])
  }
  return vals.reduce(function (prev, curr) {
    return prev.then(function (resolved) { return resolved; }, function (rejected) {
      try {
        var ret = fn.apply(void 0, [].concat(curr))
        return ret ? Promise.resolve(ret) : Promise.reject()
      } catch (e) {
        return Promise.reject()
      }
    })
  }, Promise.reject())
}

function attemptsSync (vals, fn) {
  if (fn instanceof Array && typeof vals === 'function') {
    var assign;
    (assign = [vals, fn], fn = assign[0], vals = assign[1])
  }
  return vals.reduce(function (prev, curr) {
    if (prev) { return prev }
    try {
      var ret = fn.apply(void 0, [].concat(curr))
      return ret
    } catch (e) {}
  }, false)
}

module.exports = {
  default: attempts,
  async: attempts,
  sync: attemptsSync
}