user input in javascript code example

Example 1: how to ask input in javascript

let name=prompt("What is your name?");
console.log("Hi "+name)

Example 2: how to take input in javascript in coding

In JavaScript, we can get user input like this: 
var name = window.prompt("Enter your name: "); 
alert("Your name is " + name);

Example 3: js prompt

var answer = prompt('What is your name?','Joe Blogg');

Example 4: prompt js

var answer = prompt("How are you? ");

Example 5: how to get a user input in js

Copyvar name = window.prompt("Enter your name: ");
alert("Your name is " + name);

Example 6: user input through js

var at = document.getElementById("email").value.indexOf("@");
var age = document.getElementById("age").value;
var fname = document.getElementById("fname").value;
submitOK = "true";

if (fname.length > 10) {
  alert("The name may have no more than 10 characters");
  submitOK = "false";
}

if (isNaN(age) || age < 1 || age > 100) {
  alert("The age must be a number between 1 and 100");
  submitOK = "false";
}

if (at == -1) {
  alert("Not a valid e-mail!");
  submitOK = "false";
}

if (submitOK == "false") {
  return false;
}