Basic jQuery Syntax

Document ready initialization

This is the first thing to learn about jQuery: If you want an event to work on your page, you should call it inside the $(document).ready() function. Everything inside it will load as soon as the DOM is loaded and before the page contents are loaded.

<script type="text/javascript">
$(document).ready(function(){
//Do things here
});
</script>

The dollar sign ($)

When you see the dollar sign in code, it means the code is interacting with jQuery by calling a jQuery function. So, basically, dollar sign is nothing but it’s an alias for JQuery. Take a look at below jQuery code

jQuery(document).ready(function(){

});

Over here the “jQuery” keyword can be replaced with $ sign.

$(document).ready(function(){

});

Use shorthand for the $(document).ready() event

Instead of writing out the $(document).ready() event:

$(document).ready(function (){
  alert('Hey!');
});

… rather use its shorthand version:

$(function (){
  alert('Hey!');
});

Redirection

var url = "http://www.grafix.gr";   
$(location).attr('href',url);

 

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