assertIsMounted() — react Function Reference

Architecture documentation for the assertIsMounted() function in ReactFiberTreeReflection.js from the react codebase.

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Entity Profile

BabelCompiler→ Validation→ assertIsMounted() — react Function Reference

Dependency Diagram

graph TD
  4c3d3474_670d_01ce_3c28_56d7e1bbda78["assertIsMounted()"]
  0dbcf9fa_e6db_e53a_9527_79526654a3ff["ReactFiberTreeReflection.js"]
  4c3d3474_670d_01ce_3c28_56d7e1bbda78 -->|defined in| 0dbcf9fa_e6db_e53a_9527_79526654a3ff
  style 4c3d3474_670d_01ce_3c28_56d7e1bbda78 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

packages/react-reconciler/src/ReactFiberTreeReflection.js lines 109–113

function assertIsMounted(fiber: Fiber) {
  if (getNearestMountedFiber(fiber) !== fiber) {
    throw new Error('Unable to find node on an unmounted component.');
  }
}