jsx-eslint/eslint-plugin-react

function-component-definition should ignore function with `this`

Open

#2,781 opened on Sep 1, 2020

View on GitHubContributor guide
 (2 comments) (0 reactions) (0 assignees)JavaScript (2,734 forks)batch import
bughelp wanted

Repository metrics

Stars
 (9,294 stars)
PR merge metrics
 (No merged PRs in 30d)

Description

This is a polyfill for IE:

		Element.prototype.closest = function (s) {
			let el = this
			if (!document.documentElement.contains(el)) return null
			do {
				if (el.matches(s)) return el
				el = el.parentElement || el.parentNode
			} while (el !== null && el.nodeType === 1)
			return null
		}

it needs access to this and function-component-definition complains about it.

Contributor guide

Research direction
Inspect the rule function component definition in the eslint plugin react codebase. Identify where it checks for function expressions and add a condition to skip functions that reference `this` (i.e., have a ThisExpression). Update the rule logic accordingly.
Tech stack
javascriptreact
Domain
frontend
Issue type
Bug
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.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
JavaScriptReactESLint
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
75