node promisify without err
function promisify(func, callbackPos) {
return (...args) => {
return new Promise((resolve) => {
const cb = (...args) => {
resolve(args);
};
args.splice(callbackPos ? callbackPos : args.length, 0, cb);
func(...args);
});
};
};node promisify without err
function promisify(func, callbackPos) {
return (...args) => {
return new Promise((resolve) => {
const cb = (...args) => {
resolve(args);
};
args.splice(callbackPos ? callbackPos : args.length, 0, cb);
func(...args);
});
};
};
// Example:
// Import readline
const readline = require('readline');
const rl = readline.createInterface({
input: process.stdin,
output: process.stdout
});
// Promisify rl.question
const asyncQuestion = promisify(rl.question.bind(rl));
(async () => {
// Call asyncQuestion (Get some input from the user)
// Here we get all params back in an array
const input = (await asyncQuestion('Type something: '))[0];
console.log('You typed: ' + input);
// We can also use this syntax
[someOtherInput] = await asyncQuestion('Another input: ');
console.log('You typed: ' + someOtherInput);
})();Copyright © 2021 Codeinu
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