Answers for "document.ready without jquery"

jquery document ready

// jQuery document ready
$(document).ready(function() {
    
});

javascript wait for document load

document.addEventListener("DOMContentLoaded", function(event) { 
  //do work
});

document ready without jquery

document.addEventListener("DOMContentLoaded", function(event) { 
  //we ready baby
});

jquery document ready

The .ready() method is typically used with an anonymous function:
$( document ).ready(function() {
  // Handler for .ready() called.
});

Which is equivalent to the recommended way of calling:
$(function() {
  // Handler for .ready() called.
});

document ready jquery

$(function() {
  // Handler for .ready() called.
});