Microsoft/TypeScript

Parameter completion for arrow/anonymous functions

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#51,427 opened on Nov 7, 2022

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Description

Auto complete the parameters of anonymous functions. JavaScript and most other languages already name the parameters when the function is defined and you can see these names while you are writing the function, but why not complete the whole statement, or at least complete the names when in the parentheses.

JavaScript already knows the param names image

How IntelliJ handles it image image

Contributor guide

Research direction
Examine the TypeScript language service's completion provider to understand how to add parameter names for arrow functions. Look at how IntelliJ achieves this and consider implementing a similar logic in the completion API.
Tech stack
typescript
Domain
developer experiencetooling
Issue type
Feature
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.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
TypeScriptLanguage Service
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
60