js STUDIO

.serializeArray()

フォームの要素の各値を名称と値の配列にシリアライズします。

.serializeArray() 1.2追加

戻り値:Array

サンプル 

<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>

$('form').submit(function() {
  console.log($(this).serializeArray());
  /* 実行結果例
[
  {
    name: "a",
    value: "1"
  },
  {
    name: "b",
    value: "2"
  },
  {
    name: "c",
    value: "3"
  },
  {
    name: "d",
    value: "4"
  },
  {
    name: "e",
    value: "5"
  }
]
  */
  return false;
});

デモ 

<!DOCTYPE html>
<html>
<head>
  <style>
  body, select { font-size:12px; }
  form { margin:5px; }
  p { color:red; margin:5px; }
  b { color:blue; }
  </style>
  <script src="http://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>

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