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warnForInvalidEventListener() — react Function Reference

Architecture documentation for the warnForInvalidEventListener() function in ReactDOMComponent.js from the react codebase.

Function javascript BabelCompiler Validation called by 4

Entity Profile

Dependency Diagram

graph TD
  b98b4c7e_a5fc_744a_2478_0278e64cf8e0["warnForInvalidEventListener()"]
  1e990658_7cea_75be_1f24_2399bdf9f15b["ReactDOMComponent.js"]
  b98b4c7e_a5fc_744a_2478_0278e64cf8e0 -->|defined in| 1e990658_7cea_75be_1f24_2399bdf9f15b
  5a792874_dbaf_1dd0_9e62_d6a16580e0b5["setProp()"]
  5a792874_dbaf_1dd0_9e62_d6a16580e0b5 -->|calls| b98b4c7e_a5fc_744a_2478_0278e64cf8e0
  65717281_efda_4b8d_7a97_9947c26aa05e["setPropOnCustomElement()"]
  65717281_efda_4b8d_7a97_9947c26aa05e -->|calls| b98b4c7e_a5fc_744a_2478_0278e64cf8e0
  b3ccac7d_1304_9653_2f32_5c5e2bbc637e["diffHydratedCustomComponent()"]
  b3ccac7d_1304_9653_2f32_5c5e2bbc637e -->|calls| b98b4c7e_a5fc_744a_2478_0278e64cf8e0
  409bfd4f_a0a2_7b82_31de_9321ab006da0["diffHydratedGenericElement()"]
  409bfd4f_a0a2_7b82_31de_9321ab006da0 -->|calls| b98b4c7e_a5fc_744a_2478_0278e64cf8e0
  style b98b4c7e_a5fc_744a_2478_0278e64cf8e0 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

packages/react-dom-bindings/src/client/ReactDOMComponent.js lines 296–315

function warnForInvalidEventListener(registrationName: string, listener: any) {
  if (__DEV__) {
    if (listener === false) {
      console.error(
        'Expected `%s` listener to be a function, instead got `false`.\n\n' +
          'If you used to conditionally omit it with %s={condition && value}, ' +
          'pass %s={condition ? value : undefined} instead.',
        registrationName,
        registrationName,
        registrationName,
      );
    } else {
      console.error(
        'Expected `%s` listener to be a function, instead got a value of `%s` type.',
        registrationName,
        typeof listener,
      );
    }
  }
}

Domain

Subdomains

Defined In

Called By

Source

Frequently Asked Questions

What does warnForInvalidEventListener() do?
warnForInvalidEventListener() is a function in the react codebase, defined in packages/react-dom-bindings/src/client/ReactDOMComponent.js.
Where is warnForInvalidEventListener() defined?
warnForInvalidEventListener() is defined in packages/react-dom-bindings/src/client/ReactDOMComponent.js at line 296.
What calls warnForInvalidEventListener()?
warnForInvalidEventListener() is called by 4 function(s): diffHydratedCustomComponent, diffHydratedGenericElement, setProp, setPropOnCustomElement.

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