In this tutorial, we will learn what are DOM Events using JavaScript with some cool and easy examples. In many situations, you might have to come up with this type of requirements.
I Know you are here just because you are in need of this awesome what are DOM Events using JavaScript. DOM (Document Object Model) Events are a signal that something has occurred, or is occurring, and can be triggered by user interactions or by the browser.
JavaScript to handle DOM events by “add Event Listener”
Here are a few examples of using JavaScript to handle DOM events:
1. click Event:
<button id="myButton">Click me</button>
<script>
document.getElementById("myButton").addEventListener("click", function() {
alert ("Button clicked!");
});
</script>
2. Mouseover Event:
<div id="myDiv" style="width: 100px; height: 100px; background-color: yellow;"></div>
<script>
document.getElementById("myDiv").addEventListener("mouseover", function() {
this.style.backgroundColor = "blue";
});
</script>
3. Keydown Event:
<input id="myInput" type="text">
<script>
document.getElementById("myInput").adEventListener("keydown", function(event) {
console.log("Key pressed: " + event.key);
});
</script>
4. submit Event:
<form id="myForm">
<input type="text" name="username" placeholder="Username">
<input type="password" name="password" placeholder="Password">
<button type="submit">Submit</button>
</form>
<script>
document.getElementById("myForm").addEventListener("submit", function(event) {
event.preventDefault();
console.log("Form submitted!");
});
</script>
DOM events in JavaScript are handled by user interactions with elements, such as clicks or keypresses. Event listeners are attached to DOM elements, and when an event occurs, the specified function is executed. The DOM is manipulated or updated based on event-driven actions, allowing dynamic and interactive web experiences. JavaScript DOM events respond to user actions on web elements like clicks or keypresses using event listeners attached via add Event Listener.
