svelte/test/js/samples/event-modifiers/input.html

<div on:touchstart="handleTouchstart()">
	<button on:click|stopPropagation|preventDefault="handleClick()">click me</button>
	<button on:click|once|capture="handleClick()">or me</button>
	<button on:click|capture="handleClick()">or me!</button>
</div>

<script>
	export default {
		methods: {
			handleTouchstart() {
				// ...
			},

			handleClick() {
				// ...
			}
		}
	};
</script>