sync-p/all.js

A tiny sync promise lib

var promise = require('./index')
module.exports = function all (values) {
  return promise(function (resolve, reject) {
    var l
    var counter = l = values && values.length
    if (!counter) return resolve(values)
    while (l--) loop(values[l], l)
    function loop (val, l) {
      if (val && typeof val.then === 'function') {
        return val.then(function decrement (val) {
          values[l] = val
          --counter || resolve(values)
        }, reject)
      }
      --counter || resolve(values)
    }
  })
}