The handler.set() method is a trap for the [[Set]] object internal method, which is used by operations such as using property accessors to set a property's value.| MDN Web Docs
A shallow copy of an object is a copy whose properties share the same references (point to the same underlying values) as those of the source object from which the copy was made. As a result, when you change either the source or the copy, you may also cause the other object to change too. That behavior contrasts with the behavior of a deep copy, in which the source and copy are completely independent.| MDN Web Docs
By migrating from CKEditor 4 to CKEditor 5, you open a world of new opportunities and rich text editing features available to you, so get ready!| ckeditor.com
A security release that includes fixes for two editor plugins: Iframe Dialog and Media Embed.| ckeditor.com
The Proxy object enables you to create a proxy for another object, which can intercept and redefine fundamental operations for that object.| MDN Web Docs
This Stage 3 proposal is experimental.| tc39.es
Immer (German for: always) is a tiny package that allows you to work with immutable state in a more convenient way.| immerjs.github.io