no-useless-undefined: Ignore React 19 useRef calls (#2463)

sindresorhus · Oct 3, 2024 · 5f744e8 · 5f744e8
1 parent e39ae89
commit 5f744e8
Show file tree

Hide file tree

Showing 2 changed files with 4 additions and 0 deletions.
diff --git a/rules/no-useless-undefined.js b/rules/no-useless-undefined.js
@@ -62,6 +62,8 @@ const shouldIgnore = node => {
 		|| name === 'createContext'
 		// `setState(undefined)`
 		|| /^set[A-Z]/.test(name)
+		// React 19 useRef
+		|| name === 'useRef'
 
 		// https://vuejs.org/api/reactivity-core.html#ref
 		|| name === 'ref';

diff --git a/test/no-useless-undefined.mjs b/test/no-useless-undefined.mjs
@@ -53,6 +53,8 @@ test({
 		'array.unshift(undefined);',
 		'createContext(undefined);',
 		'React.createContext(undefined);',
+		'useRef(undefined);',
+		'React.useRef(undefined);',
 		'setState(undefined)',
 		'setState?.(undefined)',
 		'props.setState(undefined)',