Kevin Powell - Community•13h ago

Is event object and window.event object the same ?

Hello guys, sorry to disturb you, can someone explain what is the difference between an event object passed by an event handler and an a window event please. I just read that the window.event was used for backward compatibility like this: event = event || window.event I don't understand, event and window.event aren't the same thing ? for e,g consider the following:

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Event vs window.event</title>
</head>
<body>
    <button id="clickMe">Click Me</button>
    <input id="typeHere" placeholder="Type something here" />
    <script>
        // Click Event Listener
        document.getElementById("clickMe").addEventListener("click", (event) => {
            console.log("---- Click Event ----");
            console.log("event (local):", event);
            console.log("window.event (global):", window.event);
        });

        // Input Event Listener
        document.getElementById("typeHere").addEventListener("input", (event) => {
            console.log("---- Input Event ----");
            console.log("event (local):", event);
            console.log("window.event (global):", window.event);
        });
    </script>
</body>
</html>

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Event vs window.event</title>
</head>
<body>
    <button id="clickMe">Click Me</button>
    <input id="typeHere" placeholder="Type something here" />
    <script>
        // Click Event Listener
        document.getElementById("clickMe").addEventListener("click", (event) => {
            console.log("---- Click Event ----");
            console.log("event (local):", event);
            console.log("window.event (global):", window.event);
        });

        // Input Event Listener
        document.getElementById("typeHere").addEventListener("input", (event) => {
            console.log("---- Input Event ----");
            console.log("event (local):", event);
            console.log("window.event (global):", window.event);
        });
    </script>
</body>
</html>

I didn't really understand what is the difference

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Is event object and window.event object the same ?