SolidJS•15mo ago

Type of setStore args?

When trying to listen for any and all changes to a store value, seems the only way of being able to do so is to wrap the store's setter like so,

const [store, _setStore] = createStore({});
function setStore(...args) {
  _setStore(...args);
  doStuff(store);
}

const [store, _setStore] = createStore({});
function setStore(...args) {
  _setStore(...args);
  doStuff(store);
}

What is the correct type for ...args? When typed as below, the type of the args is never, which throws errors in the existing setters,

  function setStore(...args: Parameters<typeof setState>) {
    _setStore(...args);
    doStuff(store);
  }

  function setStore(...args: Parameters<typeof setState>) {
    _setStore(...args);
    doStuff(store);
  }

2 Replies

Alex Lohr•15mo ago

Try to type the whole setter function with SetStoreFunction.

aryzingOP•15mo ago

Gave it a try, no luck unfortunately. Both of the following produce a TS error saying ...args is of type any[].

  const setStore: typeof _setStore = (...args) => { // Rest parameter 'args' implicitly has an 'any[]' type. ts(7019)
    _setStore(...args);
    doStuff(store);
  };

  const setStore: SetStoreFunction<{id: string, title: string}> = (...args) => { // Rest parameter 'args' implicitly has an 'any[]' type. ts(7019)
    _setStore(...args);
    doStuff(store);
  };

  const setStore: typeof _setStore = (...args) => { // Rest parameter 'args' implicitly has an 'any[]' type. ts(7019)
    _setStore(...args);
    doStuff(store);
  };

  const setStore: SetStoreFunction<{id: string, title: string}> = (...args) => { // Rest parameter 'args' implicitly has an 'any[]' type. ts(7019)
    _setStore(...args);
    doStuff(store);
  };

Thanks for the suggestion though!

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Type of setStore args?