Is it possible to comment out classes within a specified class attribute? How can this be achieved?

Is there a way to temporarily omit specific classes within HTML (

<div class="" ...>
)?

For instance:

<div data-group="group1" data-container="true" class="container-lg d-flex /* slider */ p-0">

In this scenario, the class "slider" should be excluded from the list of classes.

[UPDATE]

After considering the feedback, I have decided to follow Lee Taylor's suggestion. To disable a certain class assignment, I will simply add a prefix to that class. For example:

<div class="slider container"...

becomes:

<div class="disable-slider container"...

Sometimes simplicity is the best approach :-D Thank you all for your input!

[/UPDATE]

This method can greatly simplify tasks in multiple ways, such as:

  • Avoiding the need to switch between style sheets to locate and comment out matching classes.
  • Clearly indicating that a specific function has been excluded, which can improve comprehension for other developers if classes are named logically.
  • Facilitating testing by enabling/disabling (style) modules swiftly without the need to switch screens or tabs.
  • Streamlining debugging processes by easily commenting out classes to identify issues quickly.
  • Promoting the use of distinctively named, easy-to-recognize classes among developers.

Currently, I duplicate entire elements/rows, comment them out, and then manually remove classes from the duplicated code segment.

However, this manual process often leads to outdated information, making it unreliable for debugging purposes.

I am aware that achieving similar functionality is possible with JavaScript, but why complicate things? Additionally, altering HTML structure with JS can cause layout inconsistencies, and not everyone has access to server-side scripting capabilities. This functionality should reside within HTML, in my opinion.

Am I alone in thinking along these lines?

Answer №1

Referring to the HTML guidelines for the class attribute:

The class attribute, when applied to HTML elements, must contain a value that represents a collection of classes that the element is associated with, separated by spaces.

You can find the definition of space-separated tokens in this link:

A set of space-separated tokens is a string that includes one or more words (tokens) divided by ASCII whitespace characters, where words are sequences of characters excluding ASCII whitespace.

It's worth noting that a string containing a set of space-separated tokens may have leading or trailing ASCII whitespace.

Therefore, it isn't technically correct to comment out members of a class list. Any implementation allowing this would be considered undefined behavior and should not be relied upon.

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