svelte-writable

I found myself needing to copy/paste my personal custom stores a lot, might as well make it public.

This Svelte library gives you two (and more coming) custom Writable's.

💻 Install

npm install @n-vh/svelte-writable

🛠 Usage

customWritable(value, callback)

Create a custom Writable that allows you to add custom methods to a store.

const store = customWritable(1, (store) => ({
  increment() {
    store.update((n) => n + 1);
  },
  power(n: number) {
    store.update((value) => value ^ n);
  },
}));

store.increment();
// $store = 2

store.power(5);
// $store = 32

localStorageWritable(key, initialValue)

Synchronize your Writable with localStorage.

const store = localStorageWritable('count', 0);

store.set(1);
// $store = 1
// localStorage.count = 1

// manually change localStorage
localStorage.count = 2;
// $store = 2
// localStorage.count = 2

🤝 Any Suggestion?

Consider opening an Issue or a Pull Request!

🚧 TODO

• Add unit tests
• Add more stringify possibilities
• Add a way to combine the two utility functions

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