shouldComponentUpdate() — react Function Reference

Architecture documentation for the shouldComponentUpdate() function in ReactIncremental-test.js from the react codebase.

Function javascript BabelCompiler Validation

Entity Profile

BabelCompiler→ Validation→ shouldComponentUpdate() — react Function Reference

Dependency Diagram

graph TD
  092aa172_33cb_2484_a6c5_55b8250110e6["shouldComponentUpdate()"]
  751c5289_8c41_4a92_08d1_992f8ae40a87["Foo"]
  092aa172_33cb_2484_a6c5_55b8250110e6 -->|defined in| 751c5289_8c41_4a92_08d1_992f8ae40a87
  style 092aa172_33cb_2484_a6c5_55b8250110e6 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

packages/react-reconciler/src/__tests__/ReactIncremental-test.js lines 812–818

      shouldComponentUpdate(nextProps) {
        // this.props is the memoized props. So this should return true for
        // every update except the first one.
        const shouldUpdate = this.props.step !== 1;
        Scheduler.log('shouldComponentUpdate: ' + shouldUpdate);
        return shouldUpdate;
      }