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docs(local-storage): improve docs
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components: ["LocalStorage"]
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---
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<script>
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<script>
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import Preview from "../../components/Preview.svelte";
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import Preview from "../../components/Preview.svelte";
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</script>
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</script>
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This utility component wraps the [Window.localStorage API](https://developer.mozilla.org/en-US/docs/Web/API/Window/localStorage) and is useful for persisting ephemeral data (e.g., color theme) at the browser level.
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The `LocalStorage` component provides a reactive wrapper around the [Window.localStorage API](https://developer.mozilla.org/en-US/docs/Web/API/Window/localStorage). It's useful for persisting user preferences and application state across page reloads.
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## Reactive example
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## Reactive example
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In the example below, toggle the switch and reload the page. The updated theme should be persisted locally.
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See how the component maintains state across page reloads. Toggle the switch and refresh the page to see the persisted state.
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<FileSource src="/framed/LocalStorage/LocalStorage" />
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<FileSource src="/framed/LocalStorage/LocalStorage" />
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## Clear item, clear all
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## Clear item, clear all
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Use the `bind:this` directive to access the `clearItem` and `clearAll` methods.
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The component provides methods to manage stored data:
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Invoking `clearItem` will remove the persisted key value from the browser's local storage.
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- `clearItem`: Remove a specific key-value pair
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- `clearAll`: Remove all stored data
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Invoking `clearAll` will remove all key values.
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Use `bind:this` to access these methods. In this example, try toggling the switch, refreshing the page, then clearing the storage.
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In the following example, toggle the switch and reload the page. Then, click the "Clear storage" button. Refresh the page; the theme should be reset to the untoggled state.
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<FileSource src="/framed/LocalStorage/LocalStorageClear" />
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<FileSource src="/framed/LocalStorage/LocalStorageClear" />
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