eslint-rules-summer

The never ending summer rules of lint.

Rules list

- eslint-rules-summer
- Rules list
- no-eqeqeq-null-undefined
- no-let
- no-plain-new-date
- For developer

$3

Do not compare null or undefined with strict equality(===) | strict inequality(!==)

👍

``javascript
var a = 1
if(a == null) { // something }
if(a != null) { // something }
if(null == a) { // something }
if(null != a) { // something }
if(a == undefined) { // something }
if(a != undefined) { // something }
if(undefined == a) { // something }
if(undefined != a) { // something }
`

🙅‍♂️

`javascript
var a = 1
if(a === null) { // something }
if(a !== null) { // something }
if(null === a) { // something }
if(null !== a) { // something }
if(a === undefined) { // something }
if(a !== undefined) { // something }
if(undefined === a) { // something }
if(undefined !== a) { // something }
`

$3

Do not use let variable declaration. Use const instead.

👍

`javascript
const a = 0
const a = 0,
b = 1

var a
var a = 0
var a = 0,
b = 1

export const a = 0
export var a = 0
`

🙅‍♂️

`javascript
let a = 0;
let a = 0,
b = 1;

export let = 1;
`

$3

Do not use new Date() (empty arguments) | Date.now() . Date generation that depends on the execution environment is prohibited.

👍

`javascript
new Date(2020, 4, 3)
new Date('2020-05-03T03:24:00')
`

🙅‍♂️

`javascript
new Date()
Date.now()
`

For developer

This module is a single rules module, so normally you don't have to consciously install.

If you are developer and want to use this rules module, you can install with the following command.

> npm

`console
$ npm install --save-dev eslint-rules-summer
`

> yarn

`console
$ yarn add -D eslint-rules-summer
``