jquery onload event

1$(document).ready(function () {
2  // Function code here.
3});

1// A $( document ).ready() block.
2$( document ).ready(function() {
3    console.log( "ready!" );
4});
5

1jQuery offers several ways to attach a function that will run when the DOM is ready. All of the following syntaxes are equivalent:
2
3$( handler )
4$( document ).ready( handler )
5$( "document" ).ready( handler )
6$( "img" ).ready( handler )
7$().ready( handler )