# Installation > `npm install --save @types/linkify-it` # Summary This package contains type definitions for linkify-it (https://github.com/markdown-it/linkify-it). # Details Files were exported from https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/linkify-it. ## [index.d.ts](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/linkify-it/index.d.ts) ````ts // Type definitions for linkify-it 3.0.2 // Project: https://github.com/markdown-it/linkify-it // Definitions by: Lindsey Smith // Robert Coie // Alex Plumb // Rafa Gares // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped // TypeScript Version: 2.2 declare const LinkifyIt: { ( schemas?: LinkifyIt.SchemaRules | LinkifyIt.Options, options?: LinkifyIt.Options ): LinkifyIt.LinkifyIt; new ( schemas?: LinkifyIt.SchemaRules | LinkifyIt.Options, options?: LinkifyIt.Options ): LinkifyIt.LinkifyIt; }; declare namespace LinkifyIt { type Validate = (text: string, pos: number, self: LinkifyIt) => number | boolean; interface FullRule { validate: string | RegExp | Validate; normalize?: ((match: Match) => void) | undefined; } type Rule = string | FullRule; interface SchemaRules { [schema: string]: Rule; } interface Options { fuzzyLink?: boolean | undefined; fuzzyIP?: boolean | undefined; fuzzyEmail?: boolean | undefined; } interface Match { index: number; lastIndex: number; raw: string; schema: string; text: string; url: string; } interface LinkifyIt { // Use overloads to provide contextual typing to `FullRule.normalize`, which is ambiguous with string.normalize // This appears unneeded to the unified-signatures lint rule. add(schema: string, rule: string): LinkifyIt; // tslint:disable-next-line: unified-signatures add(schema: string, rule: FullRule | null): LinkifyIt; match(text: string): Match[] | null; normalize(raw: string): string; pretest(text: string): boolean; set(options: Options): LinkifyIt; test(text: string): boolean; testSchemaAt(text: string, schemaName: string, pos: number): number; tlds(list: string | string[], keepOld?: boolean): LinkifyIt; re: { [key: string]: RegExp; }; } } export = LinkifyIt; ```` ### Additional Details * Last updated: Tue, 06 Jul 2021 22:02:41 GMT * Dependencies: none * Global values: none # Credits These definitions were written by [Lindsey Smith](https://github.com/praxxis), [Robert Coie](https://github.com/rapropos/typed-linkify-it), [Alex Plumb](https://github.com/alexplumb), and [Rafa Gares](https://github.com/ragafus).