svelte-hash
v1.0.1
Published
Easy URL hash management for Svelte.
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Svelte Hash
Easy URL hash management for Svelte.
svelte-hash
provides a simple way to manage URL hash/fragment in Svelte.
[!NOTE] This library is client-side only, meaning SvelteKit (SSR) is not supported.
Installation
# Bun
bun i -D svelte-hash
# NPM
npm i -D svelte-hash
# Yarn
yarn add -D svelte-hash
# PNPM
pnpm add -D svelte-hash
Usage
[!TIP] It's really suggested to have a look to these interactive examples to test the library and understand the functionality (there you can see hash/fragment updates in the URL).
First of all, create and export a new hash
store instance:
// store.ts
import { createHashStore } from 'svelte-hash'
interface Hash {
foo: string
bar: string
}
export const hash = createHashStore<Hash>()
[!NOTE]
- Explicitly defining the type of the hash is optional, but extremely suggested as it provides type checking and autocompletion
- Currently only string values are supported: this might change in the future with
v2
- Only one hash store can be initialized in the same project: multiple hash stores initialization will throw an error
Then, you can use the hash
store in your components:
<!-- App.svelte -->
<script>
import { hash } from './store.ts'
// Prevent pushing to browser history every change with a "proxy" variable
// Every hash key could also not exist, so we need to provide a default value
let valueProxy = hash.foo || ''
</script>
<!-- The form will update the hash value only when submitted -->
<!-- result (on submit) will be: <URL>#foo={valueProxy} -->
<form on:submit|preventDefault={() => hash.foo = valueProxy}>
<input type="text" bind:value={valueProxy} />
<button type="submit">Submit</button>
</form>
<p>
To delete a hash key from the URL, you can set it to a falsy value:
import { hash } from './store.ts'
hash.foo = null
// or
hash.foo = undefined
// or
hash.foo = ''
Behind the scenes
The reason I created this library was to accomplish a simple URL hash/fragment management for my Svelte music player, Musicale (you should really check it out!).
I originally created the implementation directly in that project, but then I decided to extract it and make it a standalone library for everyone to use.
Why do I call URL fragment "hash"?
On the browser, to access the URL fragment you use window.location.hash
, so I decided to take that for the library name.
Contributing
We :heart: contributions!
Feel free to open an issue or a pull request but follow Contributing Guidelines.
If you don't know where to start, check out the help wanted issues!
License
GPL-3.0 License here.