module() — react Function Reference

Architecture documentation for the module() function in shouldIgnoreConsoleError.js from the react codebase.

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BabelCompiler→ Entrypoint→ module() — react Function Reference

Dependency Diagram

graph TD
  64cd478c_cee4_41ed_9fe0_c289b167cf35["module()"]
  df1d10d8_d28f_902d_1b64_1e9ea7534223["shouldIgnoreConsoleError.js"]
  64cd478c_cee4_41ed_9fe0_c289b167cf35 -->|defined in| df1d10d8_d28f_902d_1b64_1e9ea7534223
  style 64cd478c_cee4_41ed_9fe0_c289b167cf35 fill:#6366f1,stroke:#818cf8,color:#fff

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Source Code

packages/internal-test-utils/shouldIgnoreConsoleError.js lines 3–54

module.exports = function shouldIgnoreConsoleError(format, args) {
  if (__DEV__) {
    if (typeof format === 'string') {
      if (format.startsWith('%c%s')) {
        // Looks like a badged error message
        args.splice(0, 3);
      }
      if (
        args[0] != null &&
        ((typeof args[0] === 'object' &&
          typeof args[0].message === 'string' &&
          // This specific log has the same signature as error logging.
          // The trick is to get rid of this whole file.
          !format.includes('Failed to serialize an action') &&
          typeof args[0].stack === 'string') ||
          (typeof args[0] === 'string' &&
            args[0].indexOf('An error occurred in ') === 0))
      ) {
        // This looks like an error with addendum from ReactFiberErrorLogger.
        // They are noisy too so we'll try to ignore them.
        return true;
      }
      if (
        format.indexOf('ReactDOM.render was removed in React 19') !== -1 ||
        format.indexOf('ReactDOM.hydrate was removed in React 19') !== -1 ||
        format.indexOf(
          'ReactDOM.render has not been supported since React 18',
        ) !== -1 ||
        format.indexOf(
          'ReactDOM.hydrate has not been supported since React 18',
        ) !== -1 ||
        format.indexOf('react-test-renderer is deprecated.') !== -1
      ) {
        // We haven't finished migrating our tests to use createRoot.
        return true;
      }
    }
  } else {
    if (
      format != null &&
      typeof format.message === 'string' &&
      typeof format.stack === 'string' &&
      args.length === 0
    ) {
      // In production, ReactFiberErrorLogger logs error objects directly.
      // They are noisy too so we'll try to ignore them.
      return true;
    }
  }
  // Looks legit
  return false;
};