svelte/test/runtime/samples/component-binding-infinite-loop/C.html

<span
	on:click="toggle()"
	class="{{isCurrentlySelected ? 'selected' : ''}}"
>
	{{yield}}
</span>

<script>
export default {
	computed: {
		isCurrentlySelected: (currentIdentifier, identifier) => currentIdentifier === identifier
	},
	methods: {
		toggle() {
			const isCurrentlySelected = this.get('isCurrentlySelected')

			this.set({
				currentIdentifier: isCurrentlySelected ? null : this.get('identifier')
			})
		}
	}
}
</script>