�PNG  IHDR��;���IDATx��ܻn�0���K�� �)(�pA��� ���7�LeG{�� �§㻢|��ذaÆ 6lذaÆ 6lذaÆ 6lom��$^�y���ذag�5bÆ 6lذaÆ 6lذa{���� 6lذaÆ �`����}H�Fkm�,�m����Ӫ���ô�ô!� �x�|'ܢ˟;�E:���9�&ᶒ�}�{�v]�n&�6� �h��_��t�ڠ͵-ҫ���Z;��Z$�.�P���k�ž)�!��o���>}l�eQfJ�T��u і���چ��\��X=8��Rن4`Vw�l�>����n�G�^��i�s��"ms�$�u��i��?w�bs[m�6�K4���O���.�4��%����/����b�C%��t ��M�ז� �-l�G6�mrz2���s�%�9��s@���-�k�9�=���)������k�B5����\��+͂�Zsٲ ��Rn��~G���R���C����� �wIcI��n7jJ���hۛNCS|���j0��8y�iHKֶۛ�k�Ɉ+;Sz������L/��F�*\��Ԕ�#"5��m�2��[S��������=�g��n�a�P�e�ғ�L�� lذaÆ 6l�^k��̱aÆ 6lذaÆ 6lذa;���� �_��ذaÆ 6lذaÆ 6lذaÆ ���R���IEND�B` # universalify [![Travis branch](https://img.shields.io/travis/RyanZim/universalify/master.svg)](https://travis-ci.org/RyanZim/universalify) ![Coveralls github branch](https://img.shields.io/coveralls/github/RyanZim/universalify/master.svg) ![npm](https://img.shields.io/npm/dm/universalify.svg) ![npm](https://img.shields.io/npm/l/universalify.svg) Make a callback- or promise-based function support both promises and callbacks. Uses the native promise implementation. ## Installation ```bash npm install universalify ``` ## API ### `universalify.fromCallback(fn)` Takes a callback-based function to universalify, and returns the universalified function. Function must take a callback as the last parameter that will be called with the signature `(error, result)`. `universalify` does not support calling the callback with three or more arguments, and does not ensure that the callback is only called once. ```js function callbackFn (n, cb) { setTimeout(() => cb(null, n), 15) } const fn = universalify.fromCallback(callbackFn) // Works with Promises: fn('Hello World!') .then(result => console.log(result)) // -> Hello World! .catch(error => console.error(error)) // Works with Callbacks: fn('Hi!', (error, result) => { if (error) return console.error(error) console.log(result) // -> Hi! }) ``` ### `universalify.fromPromise(fn)` Takes a promise-based function to universalify, and returns the universalified function. Function must return a valid JS promise. `universalify` does not ensure that a valid promise is returned. ```js function promiseFn (n) { return new Promise(resolve => { setTimeout(() => resolve(n), 15) }) } const fn = universalify.fromPromise(promiseFn) // Works with Promises: fn('Hello World!') .then(result => console.log(result)) // -> Hello World! .catch(error => console.error(error)) // Works with Callbacks: fn('Hi!', (error, result) => { if (error) return console.error(error) console.log(result) // -> Hi! }) ``` ## License MIT