jsx-eslint/eslint-plugin-react

assert only one dom element is returned from render() per component

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#66 opened on Apr 16, 2015

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acceptedenhancementhelp wantednew rule

Description

when starting with React, i got hit with the issue where i would return multiple elements per component. would be nice if this error shows up at the lint stage as well.

not totally necessary since react would error anyways.

Contributor guide

Tech stack
reactjavascript
Domain
toolingdeveloper experience
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
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
eslint plugin developmentreact fundamentals
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
70
Research direction
Examine existing rules in the repository under `lib/rules/` to understand the structure. Look at how other rules use `context.report()`. Implement a rule that checks for multiple JSX elements in a React component's return statement. Consider edge cases like fragments or conditional returns.