Clear Text Field Value in Jquery

Question

I understand this is an easy question but for some reason this just isn't working for me. I have a function that is triggered everytime a drop down menu is changed. Here is the relevant code that is suppose to grab the current value of the text field, if a value exists, clear it that is contained within the .change function:

var doc_val_check = $('#doc_title').attr("value");
    if (doc_val_check.length > 0) {
        doc_val_check == "";
    }

I feel like I am missing something very simple.

Accepted Answer

doc_val_check == "";   // == is equality check operator

should be

doc_val_check = "";    // = is assign operator. you need to set empty value

                       // so you need =

You can write you full code like this:

var doc_val_check = $.trim( $('#doc_title').val() ); // take value of text 
                                                     // field using .val()
    if (doc_val_check.length) {
        doc_val_check = ""; // this will not update your text field
    }

To update you text field with a "" you need to try

$('#doc_title').attr('value', doc_val_check); 
// or 
$('doc_title').val(doc_val_check);

But I think you don't need above process.

In short, just one line

$('#doc_title').val("");

Note

.val() use to set/ get value in text field. With parameter it acts as setter and without parameter acts as getter.

Read more about .val()

Answer 2

If you want to clear the text field, use:

$('#doc_title').val("");

Answer 3

Instead of all those:

$('#doc_title').attr("value", "");

Answer 4

What you need is:

if ($('#doc_title').val()) {
  $('#doc_title').val('');
}

Answer 5

In simple way, you can use the following code to clear all the text field, textarea, dropdown, radio button, checkbox in a form.

function reset(){
    $('input[type=text]').val('');  
    $('#textarea').val(''); 
    $('input[type=select]').val('');
    $('input[type=radio]').val('');
    $('input[type=checkbox]').val('');  
}

Answer 6

you can clear it by using this line

$('#TextBoxID').val("");

Answer 7

If you are using jQuery, then you can use this:

// var doc_val_check = $('#doc_title').val(); - No need of this!
if ($('#doc_title').val().length > 0) {
    $('#doc_title').val("");
}

Answer 8

We can use this for text clear

$('input[name="message"]').val("");

Answer 9

For the most part you just set the .val() method. All of the answers are pretty accurate, just wanted to post my results to anyone who may need to set the value via the client id that gets rendered.

 $('#' + '<%= doc_title.ClientID %>').val(null);

Answer 10

You are comparing doc_val_check with an empty string. You want to assign the empty string to doc_val_check

so it should be this:

doc_val_check = "";

Answer 11

Use jQuery.prototype.val to get/set field values:

var value = $('#doc_title').val();    // get value
$('#doc_title').val('');    // clear value

Answer 12

    First Name: <input type="text" autocomplete="off" name="input1"/>
    <br/>
    Last Name: <input type="text" autocomplete="off" name="input2"/>
    <br/>
    <input type="submit" value="Submit" />
</form>

Answer 13

$('#[element id]').val(null);

or

$('.[element class]').val(null);

Answer 14

If you want to have element with visible blank text just do this:

$('#doc_title').html('&nbsp;');

Answer 15

Try using this :

function checkValue(){
  var value = $('#doc_title').val();
  if (value.length > 0) {
        $('#doc_title').val("");
        $('#doc_title').focus();  // To focus the input 
    }
    else{
    //do something
    }
}

<script src=""></script>
<body>
<input type="text" id="doc_title" value="Sample text"/>
<button onclick="checkValue()">Check Value</button>
</body>

Clear Text Field Value in Jquery

15 Answers

In short, just one line

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Chloe Bennett

Clear Text Field Value in Jquery

15 Answers

In short, just one line

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Must Read

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Chloe Bennett