ESLint `no-logical-not`

foo.js

/** @type {import('eslint').Rule.RuleModule} */
const noLogicalNot = {
  meta: { fixable: 'code' },
  create: context => {
    /** @type {(node: import('estree').Node) => void} */
    const listener = node => {
      context.report({
        node,
        message: 'Prefer `x === false`.',
        fix: fixer => {
          if (node.range === undefined) {
            throw new Error('unreachable');
          } else {
            const start = node.range[0];
            return [
              fixer.removeRange([start, start + 1]),
              fixer.insertTextAfter(node, ' === false'),
            ];
          }
        },
      });
    };

    return {
      ["UnaryExpression[operator='!']"]: listener,
    };
  },
};