NodeJS: Getting Input

Question

I have a code that gets input but it does not work. I want the code to wait while input is not completed. I don't want to install any packages because when someone only takes the code, it needs to work.

I use NodeJS for code.

My code:

const readline = require('readline');

function input(prompt) {
    const rl = readline.createInterface({
      input: process.stdin,
      output: process.stdout
    });

    let complete = false;

    rl.question(prompt, (answer) => {
        complete = true;

        return answer;

        rl.close();
    });

    while (!complete) {}
}

number = input("Number: ");

console.log(number);

Possible duplicate of Waiting for user to enter input in Node.js — tom
– tom, Commented Sep 5, 2019 at 13:53

Kay · Accepted Answer · 2019-09-05 14:29:43Z

2

Try out this snippet:

async function question(){
    const readline = require('readline');

    const input = async prompt => {
        const rl = readline.createInterface({
            input: process.stdin,
            output: process.stdout
        });

        return new Promise(resolve => rl.question(prompt, answer => {
            rl.close();
            resolve(answer);
        }))
    }

    return await input("Number: ");
}

Call the function as await question()

edited Sep 5, 2019 at 14:29

answered Sep 5, 2019 at 14:12

Kay

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2 Comments

flashy Over a year ago

Thank you! It worked for me, but i don't want to print the input, i want to return the input and i want to do something with it.

Kay Over a year ago

Updated the answer to return the value and not console it.

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