It is a helper application that lets article authors work directly with the final form of various texts, images and files, exactly as they will be displayed to end users.
The acronym stands for What You See Is What You Get.
Use
WYSIWYG has many forms. The term used to be applied, for example, to the office editor Microsoft Word, which is used for editing text. Today WYSIWYG has developed further and is used, for example, for editing HTML code. The most common use for HTML editing is in articles to which users can add their comments. These editors allow, for example, changes to the font (bold, italic, underline). As a result, when you click the appropriate text formatting, the HTML code is modified in the background.
Advantages and disadvantages
The biggest advantage is that anyone can write the text, even someone with no knowledge of HTML.
The disadvantage is that using an editor produces a lot of unnecessary invalid code, and debugging it can end up being very time-consuming.
In a content management system, both approaches to HTML are usually combined. A coder first prepares the template for individual pages and the author then uses the WYSIWYG editor to edit and create the remaining texts.