Wiki page 'Using the Language Service API' does not describe how to use the Language Service API

Description

Contributor guide

Tech stack

typescript

Domain

documentation

Issue type

documentation

DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.

3

Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.

1-2 days

Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.

stale

ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.

clear

Prerequisites

Understanding of TypeScriptFamiliarity with Language Service API concepts

Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.

50

Research direction

The issue points to the wiki page 'Using the Language Service API' which currently lacks content. Review the TypeScript Language Service API source code and official documentation to understand the API's functionality. Write a comprehensive guide with examples on how to use the API, referencing the existing wiki page structure.