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<!DOCTYPE html> <html> <body> <h1>JavaScript "this"</h1> <p>The "this" keyword can represent different objects depending where the function was called from.</p> <p>Click the button to execute the "hello" function again, and you will see that this time "this" represents the button object.</p> <button id="btn">Click Me!</button> <p id="demo"></p> <script> let hello = function() { document.getElementById("demo").innerHTML += "<br>This is: " + this; } //The window object calls the function: window.addEventListener("load", hello); //A button object calls the function: document.getElementById("btn").addEventListener("click", hello); </script> </body> </html>
