@mswjs/interceptors/src/utils/getValueBySymbol.ts

Low-level HTTP/HTTPS/XHR/fetch request interception library.

/**
 * Returns the value behind the symbol with the given name.
 */
export function getValueBySymbol<T>(
  symbolName: string,
  source: object
): T | undefined {
  const ownSymbols = Object.getOwnPropertySymbols(source)

  const symbol = ownSymbols.find((symbol) => {
    return symbol.description === symbolName
  })

  if (symbol) {
    return Reflect.get(source, symbol)
  }

  return
}