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Highlight Related Label when Input in Focus

$("form :input").focus(function() {
  $("label[for='" + this.id + "']").addClass("labelfocus");
}).blur(function() {
  $("label").removeClass("labelfocus");
});

Comments

  1. asheep
    Permalink to comment#

    pleasee give me this example :(

  2. This will come in handy, will use a subtle rgba colour background on selection – cheers :-)

  3. JohnMotyJr
    Permalink to comment#

    I ran a test case with this because i was doing this the long way. Come to find out, if you happen to already know the labels for="" and input’s id, then a switch case is quicker.

    $('form :input').bind({
        focus: function () {
            var id = $(this).attr('id').toString();
            var add = $("label[for='" + this.id + "']").addClass('labelfocus');
            switch (id) {
                case 'title':add;break;
                case 'description':add;break;
                case 'resource':add;break;
                case 'tag':add;break;
                case 'theme':add;break;
                case 'language':add;break;
            }
        },
        blur: function () {
            $('label').removeClass('labelfocus');
        }
    });

    jsPerf Benchmark Test Case (Slightly modified with triggering events). I do however prefer this method due to the less code and easy to use, especially if you have dynamic forms.

  4. You can style it with just CSS if you put the label after the input

    <input id="something-cool" type="text" />
    <label for="something-cool">Something Cool</label>
    
    input:focus + label { position: relative; top: -20px; }
    
  5. Here is very good example It realised like small jQuery plugin and can be customized as you wish.

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