How To Disable Button by Using Javascript

Question

I trying to write a booking appointments for my website. But i have something need to help from you.

this is my HTML for field to input:

<div class="form-group second_box">
<form id="submit" style="display:inline-block" method="post">
<label for="submit" class="control-label">
<?= lang('submit') ?> *</label>
<input type="number" name='otp' id="otp" class="required form-control" placeholder="write your code here" required="required" >
<span id="otp_error" class="field_error"></span>
</div>

this is my HTML button:

<button type="button" id="button-next-3" class="btn button-next btn-primary" onsubmit="submit_otp()"
data-step_index="3"<?= lang('next') ?>
<span class="glyphicon glyphicon-forward"></span>
</button>

and this is my Jacascript from another file:

function submit_otp(){
    $('#wizard-frame-3 .has-error').removeClass('has-error');
    $('#wizard-frame-3 label.text-danger').removeClass('text-danger');
    var otp=jQuery('#otp').val();
    jQuery.ajax({
    url:'../../../Code_Verification/check_otp.php',
    type:'post',
    data:'otp='+otp,
    success:function(result){
        if(result=='yesFalse'){
        jQuery('#otp_error').html('Please enter your valid code');
        }
        if(result=='yesTrue'){
        jQuery('#otp').html('Your code is correct');
        }
        if(result=='not_exist'){
        jQuery('#otp_error').html('Please enter valid otp');
        }
    }
    });
}

--> I using php in check_otp.php to connect with my database to comparing the value return. if the input in the second_box equal with the value i saved in the database that's mean the customer can go to next step. if they give input wrong with the value in database that's mean they cannot continue. but i don't know how to give it's logic together.

and this is the next button call in javascript file:

$('.button-next').click(function (){
if ($(this).attr('data-step_index') === '3') {
    if (!_validateCustomerForm()) {
    return; // Validation failed, do not continue.
    }
}

--> thanks all for help.

bivanh · Accepted Answer · 2020-10-29 03:47:28Z

1

Since you're using jQuery, you can try

 $("#button-next-3").attr("disabled", true);

answered Oct 29, 2020 at 3:47

bivanh

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Comments

Illya · Accepted Answer · 2020-10-29 03:45:51Z

0

Use .attr() to set disable attribute

Usage $(selector).attr("disabled", true)

In your case : $("#button-next-3").attr("disabled", true)

answered Oct 29, 2020 at 3:45

Illya

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Comments

Donchals · Accepted Answer · 2020-10-29 04:56:42Z

0

function myButton() {
     document.getElementById("myBtn").disabled = true;
    }

<html>
 <body>
  <button id="myBtn">My Button</button>
  <p>Click the button below to disable the button above.</p>
  <button onclick="myButton()">Try it</button>
  </body>
</html>

answered Oct 29, 2020 at 4:56

Donchals

11 bronze badge

1 Comment

54ka Over a year ago

Please don't post only code as answer, but also provide an explanation what your code does and how it solves the problem of the question. Answers with an explanation are usually of higher quality, and are more likely to attract upvotes.

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