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How to store user input using prompt() in JavaScript?

stackoverflow.com › questions › 73514915 › how-to-store-user-input-using-prompt-in-javascript

Just assign the function call to a variable and don't forget to perform answer checks

var answer = prompt("What is your favorite animal?");
if (answer != null && answer.length !== 0) {
   // do your stuff here
   alert(answer);
}

Answer from Dan on Stack Overflow

MDN Web Docs

developer.mozilla.org › en-US › docs › Web › API › Window › prompt

Window: prompt() method - Web APIs | MDN

window.prompt() instructs the browser to display a dialog with an optional message prompting the user to input some text, and to wait until the user either submits the text or cancels the dialog.

W3Schools

w3schools.com › jsref › met_win_prompt.asp

Window prompt() Method

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Discussions

How to store user input using prompt() in JavaScript? - Stack Overflow

If I were to have a prompt in my code like this: prompt("What is your favorite animal?"); Is there a way to store the answer? More on stackoverflow.com

stackoverflow.com

Input as number in JavaScript prompt - Stack Overflow

Can we customize a prompt box in JavaScript so it takes time as input? var r = prompt("ENTER THE NUMBER OF SECONDS AFTER WHICH YOU WANT TO BE REMINDED"); More on stackoverflow.com

stackoverflow.com

prompt function in JS ? (Eloquent JavaScript book)

prompt only works in browser. If you're trying to run this in node or such, it won't be found More on reddit.com

r/learnjavascript

10

1

May 14, 2021

How do you display a prompt onto a webpage with JavaScript and HTML?

In your html create a span or div with an id. You can then use the either getElementById or querySelector with that particular id in your script, which will allow the page to display the text in question. If you need examples W3 schools has some good ones. More on reddit.com

r/learnprogramming

3

1

July 20, 2022

Videos

youtube.com

Javascript Prompt Method - Get input from users using prompt ...

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How to Take User Input Using Prompt in JavaScript | Get & Use Input ...

July 12, 2025

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Chapter 29: Javascript Tutorial - Prompt() Method, what is it? ...

May 11, 2023

08:56

YouTube

JavaScript Prompt Function - YouTube

October 23, 2020

10:12

YouTube

JavaScript Prompt Explained – How to Get User Input Easily - YouTube

May 6, 2025

youtube.com

How to Use Prompt Dialog Box in JavaScript

View all

Codecademy

codecademy.com › docs › javascript › window › prompt()

JavaScript | window | prompt() | Codecademy

February 20, 2025 - The prompt() function is a built-in JavaScript method that displays a modal dialogue box prompting the user for input. It is part of the Web API, provided by the browser’s window object, and pauses script execution until the user responds.

GeeksforGeeks

geeksforgeeks.org › javascript › javascript-window-prompt-method

Javascript Window prompt() Method - GeeksforGeeks

August 5, 2025 - The window.prompt() method in JavaScript is a built-in function that displays a dialog box prompting the user to input some text.

Stack Overflow

stackoverflow.com › questions › 73514915 › how-to-store-user-input-using-prompt-in-javascript

How to store user input using prompt() in JavaScript? - Stack Overflow

Top answer

1 of 1

5

Just assign the function call to a variable and don't forget to perform answer checks

var answer = prompt("What is your favorite animal?");
if (answer != null && answer.length !== 0) {
   // do your stuff here
   alert(answer);
}

SheCodes

shecodes.io › athena › 111739-how-to-use-prompt-in-javascript

[JavaScript] - How to use prompt in JavaScript - SheCodes | SheCodes

Learn how to use the prompt() function in JavaScript to display a dialog box and get user input

Find elsewhere

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Medium

medium.com › @meghamurari12 › lesson-16-user-input-with-prompt-in-javascript-df46a299ecab

📘 Lesson 16: User Input with prompt() in JavaScript | by Meghamurari | Medium

August 9, 2025 - The prompt() function in JavaScript displays a dialog box that prompts the user for input. It's a simple way to interact with users and…

npm

npmjs.com › package › prompt

prompt - npm

April 11, 2022 - $ node examples/simple-prompt.js prompt: username: some-user prompt: email: some-user@some-place.org Command-line input received: username: some-user email: some-user@some-place.org

      » npm install prompt

Published Apr 11, 2022

Version 1.3.0

Author Nodejitsu Inc.

Repository https://github.com/flatiron/prompt

Homepage https://github.com/flatiron/prompt#readme

JavaScript.info

javascript.info › tutorial › the javascript language › javascript fundamentals

Interaction: alert, prompt, confirm

let age = prompt('How old are you?', 100); alert(`You are ${age} years old!`); // You are 100 years old!

Stack Overflow

stackoverflow.com › questions › 47649426 › input-as-number-in-javascript-prompt

Input as number in JavaScript prompt - Stack Overflow

Can we customize a prompt box in JavaScript so it takes time as input? var r = prompt("ENTER THE NUMBER OF SECONDS AFTER WHICH YOU WANT TO BE REMINDED");

SheCodes

shecodes.io › athena › 90671-what-is-prompt-in-javascript-how-to-use-it

[JavaScript] - What is prompt in JavaScript? How to use it? | SheCodes

Learn about the prompt function in JavaScript, its usage, and how to use it to get user input and store it as a string.

reddit.com › r/learnjavascript › prompt function in js ? (eloquent javascript book)

r/learnjavascript on Reddit: prompt function in JS ? (Eloquent JavaScript book)

May 14, 2021 -

Hi there,

I started to teach my self JS via the book " Eloquent JavaScript"

I encounter the use of prompt function in the book, which I understand is suppose to take an input from the user (similar to 'scanf' in C (?))

I'm using Visual Studio Code. When I try to run this code:

let theNumber = Number(prompt("Pick a number"));
if (!Number.isNaN(theNumber)) {
console.log("Your number is the square root of " +
theNumber * theNumber);
}

I'm getting an error message: "ReferenceError: prompt is not defined"

How can I use to "prompt" function in JS ?

Thanks for helping!

Top answer

1 of 4

3

prompt only works in browser. If you're trying to run this in node or such, it won't be found

2 of 4

1

Hi, are you running your code using node filename.js in VSC terminal? If yes, then note that the window object on which prompt is a method doesn't exist in the node environment. You have to use a browser to access the window object. Paste your code in a browser console and try.

Dummies

dummies.com › article › technology › programming-web-design › javascript › how-to-prompt-the-user-for-input-in-javascript-140912

How to Prompt the User for Input in JavaScript | dummies

July 3, 2025 - To store user‐entered data in a variable, you create a new variable and then follow it with =. You then follow it with the prompt statement. ... It's important to note that a single equal sign (=) in JavaScript is called the assignment operator.

OpenAI

platform.openai.com › docs › guides › prompt-engineering

Prompt engineering | OpenAI API

Any instructions provided this way will take priority over a prompt in the input parameter. ... 1 2 3 4 5 6 7 8 9 10 11 import OpenAI from "openai"; const client = new OpenAI(); const response = await client.responses.create({ model: "gpt-5", reasoning: { effort: "low" }, instructions: "Talk like a pirate.", input: "Are semicolons optional in JavaScript?", }); console.log(response.output_text);

TutorialsPoint

tutorialspoint.com › javascript-prompt-example

JavaScript Prompt Example

February 25, 2025 - In this article, we will learn to use the prompt() function in Javascript. The prompt() method in JavaScript allows developers to collect user input through a pop-up dialog box. What is the prompt() Method in JavaScript? The prompt dialog box is very

reddit.com › r/learnprogramming › how do you display a prompt onto a webpage with javascript and html?

r/learnprogramming on Reddit: How do you display a prompt onto a webpage with JavaScript and HTML?

July 20, 2022 -

Sorry if this is a stupid question. Point is, I’ve seen that anything to do with console.log() doesn’t actually log onto the webpage; document.write() does. How would I display something similar to the prompt() method onto the webpage? I want users to be able to input something. Again, sorry for the stupidity, I’m new to JavaScript.