Disallow the use of the `null` literal

💼 This rule is enabled in the ✅ recommended config.

🔧💡 This rule is automatically fixable by the --fix CLI option and manually fixable by editor suggestions.

Disallow the use of the null literal, to encourage using undefined instead. You can learn why in sindresorhus/meta#7

Fail

let foo = null;

if (bar == null) {}

let foo;

const foo = Object.create(null);

if (foo === null) {}

Type: object

Type: boolean
Default: false

Strict equality(===) and strict inequality(!==) is ignored by default.

// eslint unicorn/no-null: ["error", {"checkStrictEquality": true}]
if (foo === null) {}