Svelte action lazy load

This action uses the IntersectionObserver to load images or iframes lazily.

It will replace data-src with src.

And of course it is fully typed 😉

How to use

Install

npm i @svackages/lazy-action

Use in svelte component (svelte-kit only)

<script>
    import lazy, {newObserver} from '@svackages/lazy-action';

    // You can overwrite the standard
    // obeserver with the values you want
    newObserver({
        rootMargin: '70px 0px',
    });
</script>

<img
    use:lazy
    data-src="https://picsum.photos/200/300"
    alt="something random" />

<iframe
    use:lazy
    data-src="https://reitzner.at"
    title="my website"></iframe>

Use in svelte component (outside svelte-kit)

<script>
    import lazy, {newObserver} from '@svackages/lazy-action/browser';

    // You can overwrite the standard
    // obeserver with the values you want
    newObserver({
        rootMargin: '70px 0px',
    });
</script>

<img
    use:lazy
    data-src="https://picsum.photos/200/300"
    alt="something random" />

<iframe
    use:lazy
    data-src="https://reitzner.at"
    title="my website"></iframe>

REPL

https://svelte.dev/repl/f6514d9b90b344a1b1bcc14814470eee?version=3.44.2