react18-string-refs

Original：🇺🇸 English

Translated

Provides exact migration patterns for React string refs (ref="name" + this.refs.name) to React.createRef() in class components. Use this skill whenever migrating string ref usage - including single element refs, multiple refs in a component, refs in lists, callback refs, and refs passed to child components. Always use this skill before writing any ref migration code - the multiple-refs-in-list pattern is particularly tricky and this skill prevents the most common mistakes. Use it for React 18.3.1 migration (string refs warn) and React 19 migration (string refs removed).

3installs

Sourcegithub/awesome-copilot

Added on2026-04-10

NPX Install

npx skill4agent add github/awesome-copilot react18-string-refs

SKILL.md Content

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React 18 String Refs Migration

String refs (

ref="myInput"

+

this.refs.myInput

) were deprecated in React 16.3, warn in React 18.3.1, and are removed in React 19.

Quick Pattern Map

Pattern	Reference
Single ref on a DOM element	→ patterns.md#single-ref
Multiple refs in one component	→ patterns.md#multiple-refs
Refs in a list / dynamic refs	→ patterns.md#list-refs
Callback refs (alternative approach)	→ patterns.md#callback-refs
Ref passed to a child component	→ patterns.md#forwarded-refs

Scan Command

bash

# Find all string ref assignments in JSX
grep -rn 'ref="' src/ --include="*.js" --include="*.jsx" | grep -v "\.test\."

# Find all this.refs accessors
grep -rn "this\.refs\." src/ --include="*.js" --include="*.jsx" | grep -v "\.test\."

Both should be migrated together - find the

ref="name"

and the

this.refs.name

accesses for each component as a pair.

The Migration Rule

Every string ref migrates to

React.createRef()

:

Add
```
refName = React.createRef();
```
as a class field (or in constructor)
Replace
```
ref="refName"
```
→
```
ref={this.refName}
```
in JSX
Replace
```
this.refs.refName
```
→
```
this.refName.current
```
everywhere

Read

references/patterns.md

for the full before/after for each case.