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Migrating to ESLint

Cyril Silverman edited this page Jun 28, 2016 · 23 revisions

Steps

  1. Run code through Lebab with lebab <filepath> -o <filepath>
  • Lebab is an ES5 to ES6 converter.
  • You can install it with npm.
  • It seems to work quite well, but be sure to review the result because some transforms are unsafe.
  1. Run eslint --fix
  • This will fix some pretty trivial things, but definitely saves time.
  1. Manual edits
  • Despite the automated bits, many errors will remain.

Config

Here's the current .eslintrc, acquaint yourself with the eslint rules and feel free to make suggestions. Note that we're extending the eslint-config-airbnb-base

{
  "extends": "airbnb-base",
  "root": true,
  "rules": {
    "max-len": [2, 100],
    "camelcase": [0],
    "no-case-declarations": [2],
    "no-confusing-arrow": [0],
    "new-cap": [0],
    "no-else-return": [0],
    "no-multi-spaces": [0],
    "no-param-reassign": [0],
    "no-shadow": [0],
    "no-use-before-define": [0],
    "prefer-template": [0],
    "space-before-function-paren": [2, "never"],
    "strict": [2, "global"]
  }
}