@typescript-eslint/experimental-utils

AST Utilities

Provides utility functions to work with Abstract Syntax Trees (AST), such as checking if a node is an identifier.

const { ASTUtils } = require('@typescript-eslint/experimental-utils');
const { isIdentifier } = ASTUtils;

ESLint Rule Creation

Facilitates the creation of custom ESLint rules with TypeScript support, including a rule creator function that helps define metadata for rules.

const { ESLintUtils } = require('@typescript-eslint/experimental-utils');
const createRule = ESLintUtils.RuleCreator(name => `https://example.com/rule/${name}`);

Type Information

Provides utilities to retrieve type information from TypeScript code, which can be used in custom ESLint rules to perform type-aware linting.

const { TypeScriptUtils } = require('@typescript-eslint/experimental-utils');
const { getParserServices } = TypeScriptUtils;
const parserServices = getParserServices(context);
const checker = parserServices.program.getTypeChecker();