Is the Use of HTML Comments in Script Tags Still a Best Practice?

HTML Comments within Script Tags: Are They Still a Best Practice?

In the past, it was common practice to place HTML comments within script tags to prevent incompatible browsers from rendering JavaScript source code. However, today, the vast majority of browsers interpret JavaScript, rendering this technique obsolete.

Matt Kruse explains further why HTML comments should be avoided within script blocks:

Reasons to Avoid HTML Comments in Script Blocks

Incompatibility with XHTML documents:
HTML comments within script tags can hide the source code from all browsers in XHTML documents, making it inaccessible.

Invalid decrement operations:
The "--" syntax, used for decrement operations in JavaScript, is not allowed within HTML comments. This can lead to errors when using such operators in a script.

Alternative Methods

Modern browsers understand script blocks without the need for comment tricks. Therefore, the recommended practice is to simply omit HTML comments within script tags.

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