no-public-static-class-fields.md

no-public-static-class-fields

This prevents the use of Static Public Class Fields

class Foo {
  static bar = 1
}

These will not be allowed because they are not supported in the following browsers:

• Edge < 79
• Safari (any version at the time of writing)
• Firefox (any version at the time of writing)
• Chrome < 74

What is the Fix?

You can modify a class using Object.defineProperty (or a simple assignment) to add static properties:

class Foo {}
Object.defineProperty(Foo, 'bar', { configurable: true, enumerable: true, writable: true, value: 1 })

class Foo {}
Foo.bar = 1

This can be safely disabled if you intend to compile code with the @babel/plugin-proposal-class-properties Babel plugin.