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Svelte基础
介绍
响应
属性Props
逻辑表达式
事件
绑定
Classes和样式
动作Actions
转场
Svelte高阶
响应式进阶
内容复用
动画
高级绑定
高级转场
上下文API
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SvelteKit基础
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$app/state
Errors and redirects
Advanced SvelteKit
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Environment variables
Conclusion

不单可以给 window 对象添加事件处理函数哦,还支持绑定某些属性呢,比如:scrollY:

We can also bind to certain properties of window , such as scrollY:

App
<svelte:window bind:scrollY={y} />

支持绑定的window属性有:

The list of properties you can bind to is as follows:

  • innerWidth
  • innerHeight
  • outerWidth
  • outerHeight
  • scrollX
  • scrollY
  • online — 就是window.navigator.onLine

其中除了scrollXscrollY都是只读的.

All except scrollX and scrollY are readonly.

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<script>
	let y = $state(0);
</script>
 
<svelte:window />
 
<span>depth: {y}px</span>
 
<style>
	:global(body) {
		height: 400vw;
		background-size: cover;
	}
 
	span {
		position: fixed;
		font-size: 2em;
		color: white;
		font-variant: tabular-nums;
	}
</style>