How to use JavaScript variables in jQuery selectors?

Question

How do I use JavaScript variables as a parameter in a jQuery selector?

<script type="text/javascript">
$(function(){    
  $("input").click(function(){
    var x = $(this).attr("name");

    $("input[id=x]").hide();    
  });    
});
</script>

<input type="text" id="bx"/><input type="button" name="bx"/>
<input type="text" id="by"/><input type="button" name="by"/>

Basically what I want to do is to be able to hide the element which has an id that is equal to the name of the element that is being clicked.

Answer 1

var name = this.name;
$("input[name=" + name + "]").hide();

OR you can do something like this.

var id = this.id;
$('#' + id).hide();

OR you can give some effect also.

$("#" + this.id).slideUp();

If you want to remove the entire element permanently form the page.

$("#" + this.id).remove();

You can also use it in this also.

$("#" + this.id).slideUp('slow', function (){
    $("#" + this.id).remove();
});