produce

Marks a draft updater.

Marks a draft updater. It is the function itself (setStore(produce((d) => { d.n += 1 })) is setStore((d) => { d.n += 1 })); it exists so code written for other libraries migrates as is.

Import#

import { produce } from "@shadow-js/core";

Signature#

function produce<T>(update: (draft: T) => void): (draft: T) => void

Parameters#

Name	Description
`update`	The draft updater: it mutates the draft it receives.

Returns#

update, unchanged.

Examples#

import { produce, useStore } from "@shadow-js/core";

const [cart, setCart] = useStore({ items: [] as string[], count: 0 });
setCart(
  produce((draft) => {
    draft.items.push("apple");
    draft.count += 1;
  }),
);
console.log(cart.count); // 1