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Set checkbox label’s text in modal

I have a modal for creating new post. I want to allow the user to select departments for sharing so I’m using checkboxes for choosing the audience.

HTML:

<div class="modal fade" id="createNewPostModal">
    <div class="modal-dialog">
        <div class="modal-content">
            <div class="modal-header">
            <h4 class="modal-title">Create New Post</h4>
            <button type="button" class="close" data-dismiss="modal">&times;</button>
            </div>
            <div class="modal-body">
                <div class="container">
                    <form method="post" id="createNewPostForm">
                        <textarea rows="3" name="text" placeholder="Write something..."></textarea>
                        <div>
                            <p>Select audience to share</p>
                            <div>
                                <input type="checkbox" id="depACheckBox">
                                <label id="depACheckBoxLabel" for="depACheckBox"></label>
                                <input type="checkbox" id="depBCheckBox" >
                                <label id="depBCheckBoxLabel" for="depBCheckBox"></label>
                                <input type="checkbox" id="depCCheckBox">
                                <label id="depCCheckBoxLabel" for="CheckBox"></label>
                            </div>
                        </div>
                        <button type="submit" class="btn btn-success" onclick="return createNewPost(this.parentNode);" id="createNewPostButton" data-dismiss="modal">Share</button>
                    </form>
                </div>
            </div>
        </div>
    </div>
</div>

Different users have different departments to be shown and they are saved in mongoDB user document. I need to set the labels of the checkboxes on loading the modal.

I’m getting user’s document on page load, so my attempt inside the getUser function:

    $(document).ready(function() {
        $("#createNewPostModal").on('load', function(){
            document.getElementById('depACheckBoxLabel').innerText = window.user.depA.name;
            document.getElementById('depBCheckBoxLabel').innerText = window.user.depB.name;
            document.getElementById('depCCheckBoxLabel').innerText = window.user.depC.name;
        });
    });

I tried innerHTML as well but label still remains empty. How do I set the label text as or after the modal is shown?

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Answer

If you call onload on anything other than window it will have no effect.

If you want to check for the #createNewPostModal div before running your function you can do something like the below example:

$(document).ready(checkModal);

function checkModal () {
  if($('#createNewPostModal').is(':visible')){ //if the container is visible on the page
    document.getElementById('depACheckBoxLabel').innerHTML = "this";
    document.getElementById('depBCheckBoxLabel').innerHTML = "works";
    document.getElementById('depCCheckBoxLabel').innerHTML = "now";
  } 
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

<div class="modal fade" id="createNewPostModal">
  <p>Select audience to share</p>
  <div>
    <input type="checkbox" id="depACheckBox">
    <label id="depACheckBoxLabel" for="depACheckBox"></label>
    <input type="checkbox" id="depBCheckBox">
    <label id="depBCheckBoxLabel" for="depBCheckBox"></label>
    <input type="checkbox" id="depCCheckBox">
    <label id="depCCheckBoxLabel" for="CheckBox"></label>
  </div>
</div>

Feel free to adjust the check for :visible to something that suits your needs when referring to that container.


Additionally, as requested in your comment, if you want to call this function onclick you can do this:

$('button').click(checkModal);

function checkModal () {
  if($('#createNewPostModal').is(':visible')){ //if the container is visible on the page
    document.getElementById('depACheckBoxLabel').innerHTML = "this";
    document.getElementById('depBCheckBoxLabel').innerHTML = "works";
    document.getElementById('depCCheckBoxLabel').innerHTML = "now";
  } 
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

<div class="modal fade" id="createNewPostModal">
  <p>Select audience to share</p>
  <div>
    <input type="checkbox" id="depACheckBox">
    <label id="depACheckBoxLabel" for="depACheckBox"></label>
    <input type="checkbox" id="depBCheckBox">
    <label id="depBCheckBoxLabel" for="depBCheckBox"></label>
    <input type="checkbox" id="depCCheckBox">
    <label id="depCCheckBoxLabel" for="CheckBox"></label>
  </div>
</div>


<button onclick="checkModal()">Click</button>

Just swap button for whatever element you want to trigger the function from.


Lastly, if it isn’t necessary to wait for the #createNewPostModal div to load then just call your function like this and it should work:

$(document).ready(function() { document.getElementById('depACheckBoxLabel').innerHTML = window.user.depA.name; document.getElementById('depBCheckBoxLabel').innerHTML = window.user.depB.name; document.getElementById('depCCheckBoxLabel').innerHTML = window.user.depC.name; });
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