Starting from Babel
which were included to use the class features are now enabled by default in
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.
Any properties we want on an instance of an object, created within a class, need to be defined inside the constructor method.
Starting from Babel 7.14 (ECMAScript 2022), we no longer have to define properties inside the constructor.
@babel/plugin-proposal-class-properties plugin also adds support for static fields and methods.
With this plugin, we can define private class fields and class methods using a hash(#) prefix.
In previous versions,
we had to include the plugins
.babelrc.json configuration after installing it in the devDependencies.
Starting from Babel 7.14,
we can remove
They are now available by default in