js add click listener
document.getElementById("myBtn").addEventListener("click", function() {
alert("Hello World!");
});js add click listener
document.getElementById("myBtn").addEventListener("click", function() {
alert("Hello World!");
});event listener javascript
const element = document.querySelector(".class__name");
element.addEventListener("click", () => {
console.log("clicked element");
});javascript click event
<button onclick="myFunction()">Click me</button>
<p id="demo"></p>
<script>
function myFunction() {
document.getElementById("demo").innerHTML = "Hello World";
}
</script>js eventlistener to add and remove stylings
const form = document.querySelector('form');
const fname = document.getElementById('fname');
const lname = document.getElementById('lname');
const para = document.querySelector('p');
form.onsubmit = function(e) {
if (fname.value === '' || lname.value === '') {
e.preventDefault();
para.textContent = 'You need to fill in both names!';
}
}event in buejs
<template>
<div>
<button v-on:click="increment">Increment</button>
<button @click="decrement">Decrement</button>
<h4>Counter Count: {{ counter }}</h4>
</div>
</template>
<script>
export default {
name: 'DataEvent',
data: () => ({
counter: 0
}),
methods: {
increment() {
this.counter++
},
decrement() {
this.counter--
}
}
}
</script>
<style scoped>
button {
padding: 5px;
font-size: 20px;
margin: 10px;
}
h4 {
font-size: 18px;
}
</style>Copyright © 2021 Codeinu
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