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what is the difference between these 2 babel plugins?
@babel/plugin-proposal-class-properties
babel-plugin-transform-class-properties.
Which one should I use?
After looking here and here it's still not clear to me.
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According to the documentation, this plugin will transform class properties in such a way that you can define class properties using property initializer syntax (ie. by using the = assignment operator). In JavaScript, current class syntax only allows for you to define methods inside of a class, nothing else.
@babel/plugin-proposal-class-properties:This plugin transforms class properties in such a way that we can define class properties using property initializer syntax (i.e., by using the = assignment operator). In the previous versions of Babel, the class syntax only allows us to define methods inside a class.
Babel is a JavaScript compiler which is used by framework to make code understandable for older browser.
babel.transform(code: string, options?: Object, callback: Function) Transforms the passed in code . Calling a callback with an object with the generated code, source map, and AST.
I think you should use @babel/plugin-proposal-class-properties because it is following current naming convention.
Renames: -proposal-
Any proposals will be named with -proposal- now to signify that they aren't officially in JavaScript yet.
So @babel/plugin-transform-class-properties becomes @babel/plugin-proposal-class-properties, and we would name it back once it gets into Stage 4.
from We’re nearing the 7.0 Babel release. Here’s all the cool stuff we’ve been doing.
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