Function preventParallel

preventParallel<
    T extends (...args: TArgs[]) => Promise<TReturn>,
    TArgs = any,
    TReturn = any,
>(
    variableName?: string | symbol,
): MethodDecorator
Prevent a method from being executed in parallel by returning the same promise when the method is already executing.

This can be useful when you have a method that is called multiple times in parallel and you want to prevent the method from being executed multiple times.
Type Parameters
- T extends (...args: TArgs[]) => Promise<TReturn>
- TArgs = any
- TReturn = any
Parameters
- OptionalvariableName: string | symbol
  Name of the variable to store the promise in. When not specified a unique variable name is generated.
Returns MethodDecorator
MethodDecorator

Remarks
This decorator is not meant for methods that are called in parallel with different arguments.
- Defined in packages/util/src/async.ts:226