Month: November 2023

document.getElementById vs jQuery $()

are they equal?

Not exactly!!

document.getElementById('contents'); //returns a HTML DOM Object

var contents = $('#contents');  //returns a jQuery Object

In jQuery, to get the same result as document.getElementById, you can access the jQuery Object and get the first element in the object (Remember JavaScript objects act similar to associative arrays).

var contents = $('#contents')[0]; //returns a HTML DOM Object

Reference

https://stackoverflow.com/questions/4069982/document-getelementbyid-vs-jquery

Hide default search in DataTables

To hide default search box, simply pass ‘dom’:’lrtip’. This will hide default search box but searching feature still working so we can add any other custom searching.

$(‘#myTable’).DataTable({
   “dom”:”lrtip”
});

If you want to hide default search box and disable searching you can pass searching: false. In this we can not add any custom searching.

$(‘#myTable’).DataTable({
    searching: false
});

Reference

https://datatables.net/reference/api/search()

How to add close button to bootstrap card

Let’s build a dismissible card without any custom JavaScript and only with Bootstrap CSS classes.

the combination of card-header, the Bootstrap 4 Close Icon and negative margins (here .mt-n5) on the card-body. The close icon gets nicely positioned within the card-header and the negative margins pull the card content closer into the header area.

<div class="container">
  <div id="closeablecard" class="card card-hover-shadow mt-4">
    <div class="card-header bg-transparent border-bottom-0">
      <button data-dismiss="alert" data-target="#closeablecard" type="button" class="close" aria-label="Close">
        <span aria-hidden="true">&times;</span>
      </button>
    </div>
    <div class="card-body mt-n5">
      <h5 class="card-title">Your Title</h5>
      <p class="card-text">
        Lorem ipsum dolor sit amet, consectetur adipisicing elit. Voluptatem recusandae voluptate porro suscipit numquam distinctio ut. Qui vitae, ut non inventore necessitatibus quae doloribus rerum, quaerat commodi, nemo perferendis ab.
      </p>
      <a href="#" class="card-link">Card link</a>
      <a href="#" class="card-link">Another link</a>
    </div>
  </div>
</div>

To actually close the card we can make use of the BS4 Data-API and put the the following data attributes in the button tag: data-dismiss="alert" data-target="#closeablecard". data-target is the ID of our card and data-dismiss=alert triggers the actual close event in Bootstrap.

For BS5, make changes to data-* attributes. see below;

<button data-bs-dismiss="alert" data-bs-target="#closeablecard" type="button" class="close float-end" aria-label="Close">
    <span aria-hidden="true">&times;</span>
</button>

See a Demo on JSFiddle…

References

https://stackoverflow.com/questions/43970878/how-to-add-close-button-to-bootstrap-card

https://stackoverflow.com/questions/23873005/hide-div-by-default-and-show-it-on-click-with-bootstrap