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Sonner

An opinionated toast component for Svelte.

Docs Source 
<script lang="ts">
  import { toast } from "svelte-sonner";
  import { Button } from "$lib/components/ui/button/index.js";
</script>
 
<Button
  variant="outline"
  onclick={() =>
    toast("Event has been created", {
      description: "Sunday, December 03, 2023 at 9:00 AM",
      action: {
        label: "Undo",
        onClick: () => console.info("Undo")
      }
    })}
>
  Show Toast
</Button>

About

The Sonner component is provided by svelte-sonner, which is a Svelte port of Sonner, originally created by Emil Kowalski for React.

Installation

Setup theme support

By default, Sonner will use the user's system preferences to determine whether to show the light or dark theme. To get around this, you can either pass in a custom theme prop to the component, or simply use mode-watcher which you can hardcode to dark or light mode should you wish.

If you wish to opt out of Dark Mode support, you can uninstall mode-watcher and remove the theme prop from the component after installing via CLI, or manually install the component and don't include mode-watcher

Run the following command:
pnpm dlx jsrepo@latest add sonner
Add the Toaster component
+layout.svelte
<script lang="ts">
  import { Toaster } from '$lib/components/ui/sonner/index.js';
  let { children } = $props();
</script>
 
<Toaster />
 
{@render children?.()}

Usage 

<script lang="ts">
  import { toast } from 'svelte-sonner';
  import { Button } from '$lib/components/ui/button/index.js';
</script>
<Button onclick={() => toast('Hello world')}>Show toast</Button>

Examples 

<script lang="ts">
  import { toast } from "svelte-sonner";
  import { Button } from "$lib/components/ui/button/index.js";
</script>
 
<div class="flex flex-wrap gap-2">
  <Button variant="outline" onclick={() => toast("Event has been created")}
    >Default</Button
  >
  <Button
    variant="outline"
    onclick={() => toast.success("Event has been created")}>Success</Button
  >
  <Button
    variant="outline"
    onclick={() =>
      toast.info("Be at the area 10 minutes before the event time")}
  >
    Info
  </Button>
  <Button
    variant="outline"
    onclick={() => toast.warning("Event start time cannot be earlier than 8am")}
  >
    Warning
  </Button>
  <Button
    variant="outline"
    onclick={() => toast.error("Event has not been created")}>Error</Button
  >
  <Button
    variant="outline"
    onclick={() => {
      toast.promise<{ name: string }>(
        () =>
          new Promise((resolve) =>
            setTimeout(() => resolve({ name: "Event" }), 2000)
          ),
        {
          loading: "Loading...",
          success: (data) => `${data.name} has been created`,
          error: "Error"
        }
      );
    }}
  >
    Promise
  </Button>
</div>