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useHook() — react Function Reference

Architecture documentation for the useHook() function in capturing-function-conditional-capture-mutate.js from the react codebase.

Function javascript TestingUtilities Fixtures

Entity Profile

Dependency Diagram

graph TD
  1bc98d6e_e67f_6694_0dc4_8fe1cc8b8a90["useHook()"]
  87441450_81af_909e_041f_92c901dc9c40["capturing-function-conditional-capture-mutate.js"]
  1bc98d6e_e67f_6694_0dc4_8fe1cc8b8a90 -->|defined in| 87441450_81af_909e_041f_92c901dc9c40
  style 1bc98d6e_e67f_6694_0dc4_8fe1cc8b8a90 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/capturing-function-conditional-capture-mutate.js lines 1–13

function useHook(a, b) {
  let z = {a};
  let y = b;
  let x = function () {
    if (y) {
      // we don't know for sure this mutates, so we should assume
      // that there is no mutation so long as `x` isn't called
      // during render
      maybeMutate(z);
    }
  };
  return x;
}

Domain

Subdomains

Defined In

Source

Frequently Asked Questions

What does useHook() do?
useHook() is a function in the react codebase, defined in compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/capturing-function-conditional-capture-mutate.js.
Where is useHook() defined?
useHook() is defined in compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/capturing-function-conditional-capture-mutate.js at line 1.

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