Pass argument to readable store in Svelte

July 14, 2022

is there someway to pass an argument to readable store in svelte ? I have the next code:

export const worker = readable(
    [], async (set) => {

        const response = await fetchAPI()
        set(response)
        
        const interval = setInterval(async () => {
            const response = await fetchAPI()
            set(response)
        }, 10000)
})

I want pass an argumeto to that readable function with the response of the api to set the result of it via set().

Thanks

>Solution :

You can access any variables that are in scope, so you can "pass" a variable from outside the readable‘s function.

export function worker(arg) {
   return readable([], async set => {
      const response = await fetchAPI(arg); // arg is in scope here
      // ...
   });
}