onload function in javascript code example

Example 1: on load javascript

window.onload = (event) => {
  console.log('page is fully loaded');
};

//Use window.onload to to execute JavaScript only after the HTML has loaded
//Syntax: 
window.onload = function() {
  //JavaScript goes here
}

window.addEventListener('load', (event) => {
  console.log('page is fully loaded');
});

function codeAddress() {
            alert('ok');
        }
window.onload = codeAddress;

//use
window.onload=()=>{};

<body onload="myFunction()">