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JavaScript
Example 1
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<!DOCTYPE html> <html> <head> <title>How to change HTML contents using JavaScript?</title> </head> <body> <h2>How to change HTML contents using JavaScript?</h2> <p id="demo">Change this HTML content.</p> <button type="button" onclick='document.getElementById("demo").innerHTML = "Welcome to JavaScript!"'>Click Me</button> </body> </html>