What's the best method for efficiently hiding/showing a large number of DOM elements?

Imagine you have a maximum of 100 elements that remain consistent in type and format, but their content changes. These elements are connected to an input field and will update as the user types.

What would be the most efficient approach for maximizing performance? Should you reuse the elements, keep them all present while only changing their content, or consider another method?

Edit, Clarification:
Although the search algorithm is not a concern, I am utilizing the MVVM (angularjs) framework, so the search function operates in JavaScript and is not causing any bottlenecks; once the results are obtained, the elements are updated accordingly.

Furthermore, I do not need to search for elements within the DOM, as I already have references to the elements. My goal is to minimize runtime during updates.

javascriptjqueryhtmldom

Answer №1

If you're looking for a solution in code, this snippet should work:

$(element).css('display' , 'none');

However, the efficiency of this approach depends on how you locate those elements. The key is to encapsulate elements within a container and search for them only within that container:

$('container').find('your_elements').css('display' , 'none');

Alternatively:

$('your_elements', 'container').css('display' , 'none');

This method should get the job done.

Avoid doing the following at all costs:

$('your_elements').css('display' , 'none');

JavaScript will have to scour the entire DOM for those elements.

Answer №2

When dealing with a small number of elements like 100, you can easily manipulate their display using the style object's display property to show or hide them.

Answer №3

Utilize the individual IDs of each row and leverage jQuery to dynamically alter their content.

Answer №4

To optimize, consider placing all elements within a div and styling the external div (assuming they are grouped together as rows).

<div id="container">
   <!-- Your HTML elements -->
</div>

Apply appropriate styling to your container div.

In general, performance concerns for such tasks are minimal and usually not necessary to worry about.

Answer №5

In my opinion, one effective way to hide TR elements is by creating a CSS class with display none and then applying this class to the TR elements. This will allow you to easily target these hidden elements using jQuery selectors in your code. For example, you can use $('TR.hidden') or check if a TD element has the 'hidden' class with if(!$('TD').hasClass('hidden')).

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