Answers for "input from user in javascript"

how to ask input in javascript

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

js get input from user

var name = prompt("Please enter your name", "Harry Potter");

how to get a user input in js

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

js prompt

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

javascript prompt

var person = prompt("Please enter your name", "Harry Potter");

if (person != null) {
  document.getElementById("demo").innerHTML =
  "Hello " + person + "! How are you today?";
}

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;
}