## checked selector

Description: Matches all elements that are checked or selected.

- #### version added: 1.0jQuery( ":checked" )

The `:checked` selector works for checkboxes, radio buttons, and options of `select` elements.

To retrieve only the selected options of `select` elements, use the `:selected` selector.

## Examples:

Determine how many input elements are checked.

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    <!doctype html><html lang="en"><head>  <meta charset="utf-8">  <title>checked demo</title>  <style>  div {    color: red;  }  </style>  <script src="https://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:

Identify the checked radio input.

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    <!doctype html><html lang="en"><head>  <meta charset="utf-8">  <title>checked demo</title>  <style>  input, label {    line-height: 1.5em;  }  </style>  <script src="https://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: