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UNSAFE_componentWillUpdate() — react Function Reference

Architecture documentation for the UNSAFE_componentWillUpdate() function in ReactLegacyUpdates-test.js from the react codebase.

Function javascript CompilerCore Gating calls 1 called by 1

Entity Profile

Dependency Diagram

graph TD
  327a5a5a_de1d_671d_528d_dec043760c24["UNSAFE_componentWillUpdate()"]
  f38c5fbf_da68_97cd_db2a_c470bb467082["Foo"]
  327a5a5a_de1d_671d_528d_dec043760c24 -->|defined in| f38c5fbf_da68_97cd_db2a_c470bb467082
  875dbeb3_27ab_64f6_265a_5e06d0bab919["UNSAFE_componentWillUpdate()"]
  875dbeb3_27ab_64f6_265a_5e06d0bab919 -->|calls| 327a5a5a_de1d_671d_528d_dec043760c24
  875dbeb3_27ab_64f6_265a_5e06d0bab919["UNSAFE_componentWillUpdate()"]
  327a5a5a_de1d_671d_528d_dec043760c24 -->|calls| 875dbeb3_27ab_64f6_265a_5e06d0bab919
  style 327a5a5a_de1d_671d_528d_dec043760c24 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

packages/react-dom/src/__tests__/ReactLegacyUpdates-test.js lines 1190–1194

        UNSAFE_componentWillUpdate(_, nextState) {
          if (!nextState.a) {
            this.setState({a: true});
          }
        }

Domain

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Frequently Asked Questions

What does UNSAFE_componentWillUpdate() do?
UNSAFE_componentWillUpdate() is a function in the react codebase, defined in packages/react-dom/src/__tests__/ReactLegacyUpdates-test.js.
Where is UNSAFE_componentWillUpdate() defined?
UNSAFE_componentWillUpdate() is defined in packages/react-dom/src/__tests__/ReactLegacyUpdates-test.js at line 1190.
What does UNSAFE_componentWillUpdate() call?
UNSAFE_componentWillUpdate() calls 1 function(s): UNSAFE_componentWillUpdate.
What calls UNSAFE_componentWillUpdate()?
UNSAFE_componentWillUpdate() is called by 1 function(s): UNSAFE_componentWillUpdate.

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