How can I select an element by name with jQuery?

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Have a table column I\'m trying to expand and hide:

jQuery seems to hide the td elements when I select it by class but not by element\'s name.

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臣服心动

2020-11-22 06:03

You can get the name value from an input field using name element in jQuery by:

var firstname = jQuery("#form1 input[name=firstname]").val(); //Returns ABCD
var lastname = jQuery("#form1 input[name=lastname]").val(); //Returns XYZ 
console.log(firstname);
console.log(lastname);

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<form name="form1" id="form1">
  <input type="text" name="firstname" value="ABCD"/>
  <input type="text" name="lastname" value="XYZ"/>
</form>

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爱一瞬间的悲伤

2020-11-22 06:05

You could get the array of elements by name the old fashioned way and pass that array to jQuery.

function toggleByName() {
  var arrChkBox = document.getElementsByName("chName");
  $(arrChkBox).toggle();
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<html>
  <head>
    <title>sandBox</title>
  </head>
  <body>
    <input type="radio" name="chName"/><br />
    <input type="radio" name="chName"/><br />
    <input type="radio" name="chName"/><br />
    <input type="radio" name="chName"/><br />
    <input type="button" onclick="toggleByName();" value="toggle"/>
  </body>
</html>

note: the only time you would have a reason to use the "name" attribute should be for checkbox or radio inputs.

Or you could just add another class to the elements for selection.(This is what I would do)

function toggleByClass(bolShow) {
  if (bolShow) {
    $(".rowToToggle").show();
  } else {
    $(".rowToToggle").hide();
  }
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<html>
  <head>
    <title>sandBox</title>
  </head>
  <body>
    <table>
      <tr>
        <td>data1</td>
        <td class="bold rowToToggle">data2</td>
      </tr>
      <tr>
        <td>data1</td>
        <td class="bold rowToToggle">data2</td>
      </tr>
      <tr>
        <td>data1</td>
        <td class="bold rowToToggle">data2</td>
      </tr>
    </table>
    <input type="button" onclick="toggleByClass(true);" value="show"/>
    <input type="button" onclick="toggleByClass(false);" value="hide"/>
  </body>
</html>

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