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考虑这个 Svelte 代码:

https://svelte.dev/repl/e3ea17e8e09044999bf7cb4bc882adea?version=3.19.2

我该如何调整它以便每个按钮都可以独立切换?如您所见,它当前切换了所有按钮:(

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2 回答 2

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您必须像这样维护每个按钮的状态:

<script>let active = {button1: false, button2: false, button3: false};</script>

<style>.active {background-color: #ff3e00; color: white;}</style>

<button class:active="{active.button1}" on:click="{() => active.button1 = !active.button1}">foo</button>
<button class:active="{active.button2}" on:click="{() => active.button2 = !active.button2}">bar</button>
<button class:active="{active.button3}" on:click="{() => active.button3 = !active.button3}">baz</button>
于 2020-03-08T21:31:57.653 回答
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因此,对于那些想要更深入地回答上述问题的人,我创建了一个纤细的按钮组件,允许在这个 REPL 上切换和打开链接

https://svelte.dev/repl/c5b48ef759d045d08d17b5f11b74e82e?version=3.19.2

享受!

于 2020-03-09T13:19:54.343 回答