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35 changes: 35 additions & 0 deletions docs/svelte.md
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# How to render in svelte

Here is an example of a reusable component for svelte 5:

```svelte
<script lang="ts">
import { create } from 'jsondiffpatch';
import { format as formatHtml } from 'jsondiffpatch/formatters/html';
import 'jsondiffpatch/formatters/styles/html.css';

let {
left,
right,
diffOptions = undefined,
hideUnchangedValues = false,
}: {
left: unknown;
right: unknown;
diffOptions?: Parameters<typeof create>[0] | undefined;
hideUnchangedValues?: boolean;
} = $props();

let htmlDiff = $derived.by(() => {
const jdp = create(diffOptions ?? {});
const delta = jdp.diff(left, right);
return formatHtml(delta, left);
});
</script>

<div class={`json-diff-container ${hideUnchangedValues ? 'jsondiffpatch-unchanged-hidden' : ''}`}>
<div class="jsondiffpatch-result" aria-label="Visual JSON diff">
{@html htmlDiff}
</div>
</div>
```