react18-string-refs
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 com
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SKILL.md
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
# 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.currenteverywhere
Read references/patterns.md for the full before/after for each case.
Files
2- SKILL.md
c876a43c2a2.1 KB - references/patterns.md
4a6c78b0036.6 KB
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