Button for Svelte

One press for a click, a form submit, or a link that should look like a button.

Use it for Save or Send. When the control should stay on, use a Toggle. In Svelte, Ark UI renders a real button, and the default doesn't submit the form.

Installation

Anatomy

Usage

<script lang="ts">
import { ArrowUpIcon } from "lucide-svelte";
import { Button } from "@/components/ui/button";
</script>

<div class="flex flex-wrap items-center gap-2 md:flex-row">
  <Button variant="outline">Button</Button>
  <Button aria-label="Submit" size="icon-md" variant="outline">
    <ArrowUpIcon aria-hidden="true" />
  </Button>
</div>

Accessibility

Demos

Size

size runs from xs to lg in this row, each label paired with a square icon-* sibling. Extra small belongs in a dense toolbar, small sits beside body text, and the default is the action the screen is about. Icon sizes stay square so a lone glyph does not stretch, and xl or icon-xl is there when the button has to be read from across a room.

Variant Default

variant="default" is the filled button, the one that should win a glance. Spend it on the action you want taken, such as save or pay, and let everything else drop to outline or ghost. A row of filled buttons is just several buttons arguing.

Outline

variant="outline" keeps a border and drops the fill, which is the right weight beside a primary action. Cancel next to Save, or a filter that should look pressable without shouting, both sit well here. It still reads as a button before anyone hovers, which is where ghost starts to vanish.

Secondary

variant="secondary" fills the button in a quieter color, for an action that is real but not the preferred one. Pair it with the default variant when both deserve a fill, such as Save and Save as draft. A border with no fill is outline instead, and it is the lighter of the two.

Ghost

variant="ghost" shows no border until hover or focus, so it fits a low-stakes action in a toolbar or a table row. Do not use it for the only action on a page. People skip past it. Reach for outline instead when the control has to stay visible at rest.

Destructive

variant="destructive" is the red control for delete, remove, and anything that should not be casual. Put that color on the button that confirms, not on the one that only opens a dialog. One red control in a group is plenty, and the others should stay neutral so the danger stays obvious.

Link

variant="link" only paints the button as underlined text, and it does not navigate. It fits a tertiary action inside a sentence, such as forgot-password beside a field label. When the press should go somewhere, put the same styles on a real link, which is the As Child demo rather than this one.

Icon

An icon-only button uses an icon-* size so the target stays square, and this one is icon-md. The glyph is aria-hidden, so aria-label has to carry the name, here Submit. Use the pattern for a repeated action whose meaning is already obvious, and keep a visible word when the icon could mean two things.

With Icon

The icon lives in the button, and data-icon is inline-start or inline-end so the gap is right and a right-to-left layout can mirror it. Start is the side for a new-branch mark. End is the side for an arrow that points onward. Drop the attribute and the icon sits on the words.

Rounded

The buttons add rounded-full, and the pill prop does the same thing without a one-off class. A capsule suits a single marketing action, or a round icon that floats over content. In an app the default radius is calmer, since a row of pills starts to look like a set of tags. Match the icon button, or it stays a rounded square beside a capsule.

Spinner

A Spinner beside the label keeps the action readable while it runs, as with Generating and Downloading. The button is disabled, and data-icon on the spinner holds the gap an icon would. Keep the words when the name still matters. isLoading is the other pattern: it replaces the label with a centered spinner, holds the width, and sets aria-busy.

As Child

Login here is a real link wearing button styles, so it navigates and still matches the other controls. Use that when the destination is an address, a login page or a pricing page. variant="link" only changes the paint. The prop that merges styles differs by library, and the link question in the FAQ names each one.

Rtl

dir="rtl" on the row flips the cluster: Arabic labels, a destructive action, an icon button, and a loading label, with the arrow on data-icon="inline-end" so it mirrors. Use the attribute when this group is an island of right-to-left UI. A larger subtree should take Direction instead of a dir on every wrapper. A physical margin on the icon will fight that flip.

FAQ

API Reference