<!DOCTYPE html>
<html>
<body>
<h2>Writing into an window alert box</h2>
<p>My first paragraph.</p>
<script>
window.alert(10 + 6);
</script>
</body>
</html>
<h3>Live Preview </h3>
<div class="shadow">
<img src="/library/images-tutorials/html-browser.png" class="img-thumbnail">
<div class="ratio ratio-16x9">
<iframe class="embed-responsive-item" src="/library/javascript/overview-of-javascript/window-alert-box-using-javascript-q-1022.html"></iframe>
</div>
</div> </div>
<hr>
When you will refresh this page one alert will be open with output value.
First understand the algorithm carefully. Then study the program line-by-line and compare it with the output. Finally, review the explanation section to strengthen your logic and programming understanding.
Rewrite the program without looking at the code. Modify values, conditions or logic and run it again. This helps improve confidence and strengthens coding skills much faster.