eslintrc.js is about to be deprecated

[domoscargin]

What

We're using an .eslintrc.js file to configure our eslint. This is due to be deprecated in eslint 9.0.0, and has caused some issues with eslint plugins.

We should look into updating to the new eslint.config.js style.

Who needs to work on this

Developer

Who needs to review this

Developer

Done when

• Our eslint config is in the new style.

[patrickpatrickpatrick]

The plugins used by our config for eslint also have to support the new 'flat config' format before we can make this upgrade. I will watch these issues and update this list when they are merged.

Library	Ready
eslint	✅
eslint-config-standard	standard/eslint-config-standard#410
eslint-config-prettier	✅
eslint-plugin-import	import-js/eslint-plugin-import#2948
eslint-plugin-n	✅
eslint-plugin-promise	eslint-community/eslint-plugin-promise#449
eslint-plugin-jest	✅