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JavaScript jQuery Basics (2014) Creating a Mobile Drop Down Menu Using change()

Using change() in jQuery Basics

hello and happy holidays!

confused by jQuery; here's my question:

How do i modify the $button click code so it performs the redirect when the $select is changed?

if anyone can take a look at the code below and make suggestions, i would appreciate it:

//Create a select and append to #menu
var $select = $("<select></select>");
$("#menu").append($select);

//Cycle over menu links
$("#menu a").each(function(){
  var $anchor = $(this);
  //Create an option
  var $option = $("<option></option>");

  //Deal with selected options depending on current page
  if($anchor.parent().hasClass("selected")) {
    $option.prop("selected", true);
  }
  //option's value is the href
  $option.val($anchor.attr("href"));
  //option's text is the text of link
  $option.text($anchor.text());
  //append option to select
  $select.append($option);
});
//Create button 
var $button = $("<button>Go</button>");
$("#menu").change($button);
//Bind click to button
$button.click(function(){
  //Go to select's location
  window.location = $select.val();
});

2 Answers

I'm pretty sure you are using change() wrong. I've used it with a function instead of a variable.

   $('select').change(function(){
      //redirect code
});

To expand on Joseph's code, if you want to redirect based on the change in the select element, the syntax is

$select.change(function(event_object) {
    window.location = $(this).val();
});

.change() works by choosing the element you want to watch for changes

$('css-selector') 

or

 var $element = $('<element></element>');

and chaining the function at the end. This is how basic jquery works.

You can even add these event handlers before it has been appended to the page.