Add Classic Classes Deprecation Guide #1409
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| There is no direct replacement for `reopen`. You should refactor your code to avoid this pattern. If you need to add functionality, consider creating a subclass: | ||
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| ```javascript | ||
| import MyComponent from './my-component'; |
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any chance we can use a word other than component?
I don't want folks to get the idea that we condone component extension at all (even for native classes)
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Should this also deprecate the |
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@ef4 we should deprecate it, but I'm not sure we need to call it out in these guides. |
kategengler
reviewed
Aug 22, 2025
| since: 6.5.0 | ||
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| With the introduction of native class syntax in JavaScript, Ember is deprecating its classic class syntax, which includes `extend`, `reopen`, and `reopenClass`. This guide will help you migrate your code to the modern syntax. |
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This should probably mention the codemod for native classes, as well as a migration path: emberjs/rfcs#1117 (comment)
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RFC: emberjs/rfcs#1117