![]() ![]() If you are using a modern bundler like Vite, esbuild, swc, Webpack, Parcel, and others that implement a hybrid lookup strategy, the new bundler option should be a good fit for you. The only exception is that mixing the two styles is not allowed. On a final note: in addition to allowing decorators to be placed before the export keyword, the proposal for decorators now provides the option of placing decorators after export or export default. ![]() This new decorators proposal is not compatible with -emitDecoratorMetadata, and it does not allow decorating parameters.įuture ECMAScript proposals may be able to help bridge that gap. The type-checking rules and emit are sufficiently different that while decorators can be written to support both the old and new decorators behavior, any existing decorator functions are not likely to do so. Outside of -experimentalDecorators, they will be type-checked and emitted differently. However, without the flag, decorators will now be valid syntax for all new code. experimentalDecorators will continue to exist for the foreseeable future While these experimental decorators have been incredibly useful, they modeled a much older version of the decorators proposal, and always required an opt-in compiler flag called -experimentalDecorators.Īny attempt to use decorators in TypeScript without this flag used to prompt an error message. ![]() If you’ve been using TypeScript for a while, you might be aware of the fact that it’s had support for “experimental” decorators for years. Differences with Experimental Legacy Decorators To learn more about decorators in-depth, you can read up on Axel Rauschmayer’s extensive summary.įor more information about the changes involved, you can view the original pull request. They can be used on properties/fields, getters, setters, and auto-accessors.Įven classes themselves can be decorated for things like subclassing and registration. Decorators can be used on more than just methods! ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |