promiseCallback.js•532 B
'use strict';
Object.defineProperty(exports, "__esModule", {
value: true
});
const PROMISE_SYMBOL = Symbol('promiseCallback');
function promiseCallback() {
let resolve, reject;
function callback(err, ...args) {
if (err) return reject(err);
resolve(args.length > 1 ? args : args[0]);
}
callback[PROMISE_SYMBOL] = new Promise((res, rej) => {
resolve = res, reject = rej;
});
return callback;
}
exports.promiseCallback = promiseCallback;
exports.PROMISE_SYMBOL = PROMISE_SYMBOL;