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JavaScript Tutorials

JavaScript often abbreviated as JS, is a high-level, interpreted programming language with object-oriented capabilities. JavaScript is a very powerful client-side scripting language.

It is lightweight and primarily used on the Web Pages to create a dynamic and interactive experience for the user.

The HTML script Tag

The script tag is used to define a client-side script (JavaScript).

JavaScript can change HTML content
<!DOCTYPE html>
  <html>
  <body>

  <h2>Use JavaScript to Change Text</h2>
  <p>This example writes "Hello JavaScript!" into an HTML element with id="demo":</p>

  <p id="demo"></p>

  <script>
  document.getElementById("demo").innerHTML = "Hello JavaScript!";
  </script>

  </body>
</html>
JavaScript can change HTML styles and attributes
<!DOCTYPE html>
  <html>
  <body>

  <h2>Use JavaScript to Change Text</h2>
  <p>This example writes "Hello JavaScript!" into an HTML element with id="demo":</p>

  <p id="demo"></p>

  <script>
    document.getElementById("demo").style.fontSize = "18px";
    document.getElementById("demo").style.color = "black";
    document.getElementById("demo").style.backgroundColor = "green";
    document.getElementById("image").src = "picture.gif";
  </script>

  </body>
</html>

Online javascript tutorials

You can customize this code further as per your requirement.