carbon-components-svelte/tests/Breakpoint/BreakpointObserver.test.svelte

<script lang="ts">
  import { breakpointObserver } from "carbon-components-svelte";

  export let smallerThanMd = false;
  export let largerThanMd = false;

  const observer = breakpointObserver();
  const smallerThan = observer.smallerThan("md");
  const largerThan = observer.largerThan("md");

  smallerThan.subscribe((value) => {
    smallerThanMd = value;
  });

  largerThan.subscribe((value) => {
    largerThanMd = value;
  });
</script>

<div data-testid="smaller-than-md">{smallerThanMd}</div>
<div data-testid="larger-than-md">{largerThanMd}</div>