how to take input javascript code example
Example 1: input in js
var answer = prompt("Question")
Example 2: 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;
}
Example 3: input in javascript
Input Text Object
The Input Text object represents an HTML <input> element with type="text".
Access an Input Text Object
You can access an <input> element with type="text" by using getElementById():
Example
var x = document.getElementById("myText");
Tip: You can also access <input type="text"> by searching through the elements collection of a form.
Create an Input Text Object
You can create an <input> element with type="text" by using the document.createElement() method:
Example
var x = document.createElement("INPUT");
x.setAttribute("type", "text");