# :checked Selector

## checked ( ) version added: 1.0

Description: Matches all elements that are checked or selected.

The `:checked` selector works for checkboxes, radio buttons, and select elements. For select elements only, use the `:selected` selector.

## Examples:

#### Example: Determine how many input elements are checked.

    <!doctype html>
    <html lang="en">
    <head>
      <meta charset="utf-8">
      <title>css demo</title>

      <style>

      div {
        color: red;
      }

      </style>

      <script src="//code.jquery.com/jquery-1.10.2.js"></script>
    </head>
    <body>

    <form>
      <p>
        <input type="checkbox" name="newsletter" value="Hourly" checked="checked">

        <input type="checkbox" name="newsletter" value="Daily">
        <input type="checkbox" name="newsletter" value="Weekly">

        <input type="checkbox" name="newsletter" value="Monthly" checked>
        <input type="checkbox" name="newsletter" value="Yearly">
      </p>
    </form>
    <div></div>

    <script>

    var countChecked = function() {
      var n = $( "input:checked" ).length;
      $( "div" ).text( n + (n === 1 ? " is" : " are") + " checked!" );
    };
    countChecked();

    $( "input[type=checkbox]" ).on( "click", countChecked );

    </script>

    </body>
    </html>

#### Demo:

#### Example: Identify the checked radio input.

    <!doctype html>
    <html lang="en">
    <head>
      <meta charset="utf-8">
      <title>css demo</title>

      <style>

      input, label {
        line-height: 1.5em;
      }

      </style>

      <script src="//code.jquery.com/jquery-1.10.2.js"></script>
    </head>
    <body>

    <form>
      <div>
        <input type="radio" name="fruit" value="orange" id="orange">
        <label for="orange">orange</label>
      </div>
      <div>
        <input type="radio" name="fruit" value="apple" id="apple">
        <label for="apple">apple</label>
      </div>
      <div>
        <input type="radio" name="fruit" value="banana" id="banana">
        <label for="banana">banana</label>
      </div>
      <div id="log"></div>
    </form>

    <script>

    $( "input" ).on( "click", function() {
      $( "#log" ).html( $( "input:checked" ).val() + " is checked!" );
    });

    </script>

    </body>
    </html>

#### Demo: