JavaScript Applying JavaScript to HTML applying javascript to html

The source code in the working code (demo) uses the jQuery library so, you have to include that in your document. After <link target='_blank' href="styles.css" rel="stylesheet" type="text/css" />

Add the line below.

<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"></script>

Answer:1

The point is, the script is loaded before HTML elements were rendered. If you have your code in contact.js, wrap it in $(document).ready():

$(document).ready(function() {
    $("#member,").css("display","none");

    var showTop = $.cookie('showTop');
    if (showTop == 'expanded') {
      $("#member").show("fast");
      $('input[name=mbr]:checked');
    } else {
      $("#member").hide("fast");
      $('input[name=mbr]:checked');
  }
});

$(".mbr-yn").click(function(){
    if ($('input[name=mbr]:checked').val() == "Yes") {
        $("#member").slideDown("fast"); //Slide Down Effect
        $.cookie('showTop', 'expanded'); //Add cookie 'ShowTop'
    }
    if ($('input[name=mbr]:checked').val() == "No"){ 
        $("#member").slideUp("fast");  
        $.cookie('showTop', 'collapsed'); //Add cookie 'ShowTop'
    }
 });

And don't forget to include jQuery library before your script:

<script src="//ajax.googleapis.com/ajax/libs/jquery/2.0.0/jquery.min.js"></script>
Answer:2

First off, awesome job! There are a few small issues with what your doing that could be the cause. You actually have to make sure you include jQuery when using jQuery functionality. You can add this by including this line before you pull in your contacts.js file.

<script src="//ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js" type="text/javascript"></script>

This will set up $ to say that this is jQuery. Once you do that, you will have to make sure that it doesn't try and run your code until jQuery is fully loaded. to do that, put this at the begining of your contacts.js file.

$( document ).ready(function() {

and then this at the bottom.

});

That wrapper just tells the page to not call your functions until everything has loaded properly. hope this helps! And never hesitate to ask questions :)

Answer:3

I would put it in an immediate function inside a script block just before the closing body tag so that it runs after the page content has loaded:

<script>

$(function() { 

/* in here */ 

}); 

</script>
Answer:4

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