Sha256: ae33c676a4a1733b17bde7a4e20ecf7bbd9743c94222633e58a1375393b7594b
Contents?: true
Size: 796 Bytes
Versions: 21
Compression:
Stored size: 796 Bytes
Contents
'use strict';
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = awaitify;
// conditionally promisify a function.
// only return a promise if a callback is omitted
function awaitify(asyncFn, arity = asyncFn.length) {
if (!arity) throw new Error('arity is undefined');
function awaitable(...args) {
if (typeof args[arity - 1] === 'function') {
return asyncFn.apply(this, args);
}
return new Promise((resolve, reject) => {
args[arity - 1] = (err, ...cbArgs) => {
if (err) return reject(err);
resolve(cbArgs.length > 1 ? cbArgs : cbArgs[0]);
};
asyncFn.apply(this, args);
});
}
return awaitable;
}
module.exports = exports['default'];
Version data entries
21 entries across 21 versions & 1 rubygems