Working with Svelte stores - Learn web development
just for reference, here's a basic working store implemented from scratch: export const writable = (initial_value = 0) => { let value = initial_value // content of the store let subs = [] // subscriber's handlers const subscribe = (handler) => { subs = [...subs, handler] // add handler to the array of subscribers handler(value) // call handler with current value return () => subs = subs.