Answers for "document event listener js"

Javascript

js document.addEventListner

//Syntax
target.addEventListener(type, listener);
//Example 
document.addEventListener("click", modifyText);
//HTML
<table id="outside">
  <tr><td id="t1">one</td></tr>
  <tr><td id="t2">two</td></tr>
</table>
//JavaScript
// Function to change the content of t2
function modifyText(new_text) {
  const t2 = document.getElementById("t2");
  t2.firstChild.nodeValue = new_text;
}
// Function to add event listener to table
const el = document.getElementById("outside");
el.addEventListener("click", function(){modifyText("four")}, false);

Posted by: Guest on September-07-2021

Source

event listener javascript

const element = document.querySelector(".class__name");

element.addEventListener("click", () => {
	console.log("clicked element");
});

Posted by: Guest on December-31-2019

javascript event listener

element.addEventListener("click", function(){ 
   element.innerText = "something"; 
});

Posted by: Guest on February-19-2020

event listener javascript

//DOM Level 2 Event Listener (Advanced technique to call an event)
document.getElementById("btn2").addEventListener('click', () => {
    alert("hello world");
}, false);
//our third param of DOM Level 2 Event Listener
// false = event trigger from bottom to top(bubbling phase)
// true = event trigger from top to bottom (capturing phase)


//TRADITIONAL DOM EVENT HANDLERS (very old)
function show_alert() {
    alert("hello world");
}
document.getElementById("btn1").onclick = show_alert;

Posted by: Guest on June-04-2021

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