Description: Encode a set of form elements as an array of names and values.
The .serializeArray()
method creates a JavaScript array of objects, ready to be encoded as a JSON string. It operates on a jQuery object representing a set of form elements. The form elements can be of several types:
<form> <div><input type="text" name="a" value="1" id="a" /></div> <div><input type="text" name="b" value="2" id="b" /></div> <div><input type="hidden" name="c" value="3" id="c" /></div> <div> <textarea name="d" rows="8" cols="40">4</textarea> </div> <div><select name="e"> <option value="5" selected="selected">5</option> <option value="6">6</option> <option value="7">7</option> </select></div> <div> <input type="checkbox" name="f" value="8" id="f" /> </div> <div> <input type="submit" name="g" value="Submit" id="g" /> </div> </form>
The .serializeArray()
method can act on a jQuery object that has selected individual form elements, such as <input>
, <textarea>
, and <select>
. However, it is typically easier to select the <form>
tag itself for serialization:
$('form').submit(function() { $.print($(this).serializeArray()); return false; });
This produces the following data structure:
[ { name: a value: 1 }, { name: b value: 2 }, { name: c value: 3 }, { name: d value: 4 }, { name: e value: 5 } ]
<!DOCTYPE html>
<html>
<head>
<style>
body, select { font-size:14px; }
form { margin:5px; }
p { color:red; margin:5px; }
b { color:blue; }
</style>
<script src="https://code.jquery.com/jquery-latest.js"></script>
</head>
<body>
<p><b>Results:</b> <span id="results"></span></p>
<form>
<select name="single">
<option>Single</option>
<option>Single2</option>
</select>
<select name="multiple" multiple="multiple">
<option selected="selected">Multiple</option>
<option>Multiple2</option>
<option selected="selected">Multiple3</option>
</select><br/>
<input type="checkbox" name="check" value="check1" id="ch1"/>
<label for="ch1">check1</label>
<input type="checkbox" name="check" value="check2" checked="checked" id="ch2"/>
<label for="ch2">check2</label>
<input type="radio" name="radio" value="radio1" checked="checked" id="r1"/>
<label for="r1">radio1</label>
<input type="radio" name="radio" value="radio2" id="r2"/>
<label for="r2">radio2</label>
</form>
<script>
function showValues() {
var fields = $(":input").serializeArray();
$("#results").empty();
jQuery.each(fields, function(i, field){
$("#results").append(field.value + " ");
});
}
$(":checkbox, :radio").click(showValues);
$("select").change(showValues);
showValues();
</script>
</body>
</html>