How to disable warnings from @typescript-eslint?-CodePudding

Below is my code:

interface DeleteRecipeFunctionContext {
  handleRecipeDelete: (id: string | number) => void;
}

const RecipeContext = createContext<DeleteRecipeFunctionContext>({
  handleRecipeDelete: (id) => null, // eslint-disable-line no-unused-vars
});

createContext requires me to pass in a default function, so I am passing in a (id)=>null as a dummy placeholder before I pass in the actual function. I receive the warning from @typescript-eslint stating:

'id' is defined but never used  @typescript-eslint/no-unused-vars

Writing // eslint-disable-warning/no-unused-vars does not disable the warning, but eslint-disable-warning does. How should I turn off this warning without turning off all warnings? On the other hand, is my approach of using createContext correct (to enter a dummy function)?

CodePudding user response：

Above your function you can add // @ts-ignore

CodePudding user response：

Disabling warnings should be a last resort option. Couple of alternatives here:

Discard the parameter:
```
handleRecipeDelete: (_) => null
```
Omit the parameter:
```
handleRecipeDelete: () => null
```

A more robust option is to make your context nullable.

const RecipeContext = createContext<DeleteRecipeFunctionContext | undefined>();

and do a null check when accessing your context, often done in a custom hook:

 function useRecipeContext() {
   const context = useContext(RecipeContext);
   if (!context) {
     throw new Error("Missing RecipeContext.Provider value");
   }
   return context;
 }