how take input from user in javascript code example

Example 1: js get input from user

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

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: Accessing user input through js

var x = document.getElementById("myText").value;