javascript onclick event listener
document.getElementById("myBtn").addEventListener("click", function() {
alert("Hello World!");
});javascript onclick event listener
document.getElementById("myBtn").addEventListener("click", function() {
alert("Hello World!");
});eventlistener javascript
document.querySelector("button").addEventListener("click", handle);
function handle() {
alert("I got clicked")
}addEventListener
let = buttonRoll = document.getElementById("myButton")
buttonRoll.addEventListener("click", function(){
console.log("Button Clicked")
})list listener on a page js
function listAllEventListeners() {
const allElements = Array.prototype.slice.call(document.querySelectorAll('*'));
allElements.push(document);
allElements.push(window);
const types = [];
for (let ev in window) {
if (/^on/.test(ev)) types[types.length] = ev;
}
let elements = [];
for (let i = 0; i < allElements.length; i++) {
const currentElement = allElements[i];
for (let j = 0; j < types.length; j++) {
if (typeof currentElement[types[j]] === 'function') {
elements.push({
"node": currentElement,
"type": types[j],
"func": currentElement[types[j]].toString(),
});
}
}
}
return elements.sort(function(a,b) {
return a.type.localeCompare(b.type);
});
}event listener function called parameters
var someEventHander=function(event,param1,param2){
console.log(event,param1,param2);
}
//add listener
document.getElementById("someid").addEventListener('click',someEventHander.bind(event,'param1','param2'), false);Copyright © 2021 Codeinu
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