Javascript Content Controlling

Javascript

Live Event Handler Message

Here is an example of a button. When you click the button and instead of having to refresh the page to see changes, the message shows immediately, which is called "real-time content change":

With the "onclick" function its easy to make one live system onto your site.

Fetch Objects

You can bring onjects from database with backend languages only for instance, but if you combine it with also JavaScript frameworks (like JS itself), then you can fetch data immediately without page reload:

Some websites have this same system, where they have a backend language and JavaScript for live fetching - its like a conveyor belt that takes objects from one language to other.

Input Length Checking

Validating forms with backend languages like PHP is really robust, since hackers can't access these files. Though you to make the form validation real-time, you can add JS again:

<<p><>span id="count">0</span>/100 characters</p> <script> const comment = document.getElementById('comment'); const count = document.getElementById('count'); if (comment) { comment.addEventListener('input', () => { count.textContent = comment.value.length; }); } </script>

This is a textarea, where you can write anything up to 100 characters. If you hit the max amount, you can't write anymore. This is a good way to prevent some users from bloating your web application.

Detect Page Changes Live

This is actually just like the tab change function, which is documented on the state page (this page). Every button has their own click event handle:

As soon as one button is clicked, it's box comes visible and the other button's div disappears.