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componentDidMount() — react Function Reference

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

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Entity Profile

Dependency Diagram

graph TD
  d82c03f4_60de_b7ec_2991_c51dbddfa57d["componentDidMount()"]
  8ceb8fbf_0e04_1346_f837_ae8ff1342c31["Child"]
  d82c03f4_60de_b7ec_2991_c51dbddfa57d -->|defined in| 8ceb8fbf_0e04_1346_f837_ae8ff1342c31
  style d82c03f4_60de_b7ec_2991_c51dbddfa57d fill:#6366f1,stroke:#818cf8,color:#fff

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Source Code

packages/react-dom/src/__tests__/ReactLegacyUpdates-test.js lines 1036–1039

      componentDidMount() {
        expect(renderCount).toBe(postRenderCount + 1);
        postRenderCount++;
      }

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Frequently Asked Questions

What does componentDidMount() do?
componentDidMount() is a function in the react codebase, defined in packages/react-dom/src/__tests__/ReactLegacyUpdates-test.js.
Where is componentDidMount() defined?
componentDidMount() is defined in packages/react-dom/src/__tests__/ReactLegacyUpdates-test.js at line 1036.

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