Svelte参考文档

svelte/events

import { function on<Type extends keyof WindowEventMap>(window: Window, type: Type, handler: (this: Window, event: WindowEventMap[Type]) => any, options?: AddEventListenerOptions | undefined): () => void (+4 overloads)Attaches an event handler to the window and returns a function that removes the handler. Using this
rather than addEventListener will preserve the correct order relative to handlers added declaratively
(with attributes like onclick), which use event delegation for performance reasons
on } from 'svelte/events';

on

将事件处理程序附加到窗口并返回一个移除该处理程序的函数。使用这个方法而不是 addEventListener 将保持相对于以声明方式添加的处理程序（使用 onclick 这样的属性）的正确顺序，这些处理程序出于性能原因使用事件委托。

function on<Type extends keyof WindowEventMap>(
	window: Window,
	type: Type,
	handler: (
		this: Window,
		event: WindowEventMap[Type]
	) => any,
	options?: AddEventListenerOptions | undefined
): () => void;

function on<Type extends keyof DocumentEventMap>(
	document: Document,
	type: Type,
	handler: (
		this: Document,
		event: DocumentEventMap[Type]
	) => any,
	options?: AddEventListenerOptions | undefined
): () => void;

function on<
	Element extends HTMLElement,
	Type extends keyof HTMLElementEventMap
>(
	element: Element,
	type: Type,
	handler: (
		this: Element,
		event: HTMLElementEventMap[Type]
	) => any,
	options?: AddEventListenerOptions | undefined
): () => void;

function on<
	Element extends MediaQueryList,
	Type extends keyof MediaQueryListEventMap
>(
	element: Element,
	type: Type,
	handler: (
		this: Element,
		event: MediaQueryListEventMap[Type]
	) => any,
	options?: AddEventListenerOptions | undefined
): () => void;

function on(
	element: EventTarget,
	type: string,
	handler: EventListener,
	options?: AddEventListenerOptions | undefined
): () => void;

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svelte/easing svelte/legacy