Edit File: awaitify.js
'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) { if (!arity) 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;
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