TS DOM类型的声明

lib.dom.d.ts

HTMLInputElement

<input type="text" @change="handleChange" />

const handleChange = (evt: Event) => {console.log((evt.target as HTMLInputElement).value);
}

HTMLElement

const div: HTMLDivElement = document.createElement('div');
const img: HTMLImageElement = document.createElement('img');// canvas
const canvas:HTMLCanvasElement = document.createElement('canvas');
const ctx:CanvasRenderingContext2D = canvas.getContext('2d');// setInterval
let timer:number = setInterval(()=>{},500);

interface HTMLElementTagNameMap {"a": HTMLAnchorElement;"abbr": HTMLElement;"address": HTMLElement;"applet": HTMLAppletElement;"area": HTMLAreaElement;"article": HTMLElement;"aside": HTMLElement;"audio": HTMLAudioElement;"b": HTMLElement;"base": HTMLBaseElement;"basefont": HTMLBaseFontElement;"bdi": HTMLElement;"bdo": HTMLElement;"blockquote": HTMLQuoteElement;"body": HTMLBodyElement;"br": HTMLBRElement;"button": HTMLButtonElement;"canvas": HTMLCanvasElement;"caption": HTMLTableCaptionElement;"cite": HTMLElement;"code": HTMLElement;"col": HTMLTableColElement;"colgroup": HTMLTableColElement;"data": HTMLDataElement;"datalist": HTMLDataListElement;"dd": HTMLElement;"del": HTMLModElement;"details": HTMLDetailsElement;"dfn": HTMLElement;"dialog": HTMLDialogElement;"dir": HTMLDirectoryElement;"div": HTMLDivElement;"dl": HTMLDListElement;"dt": HTMLElement;"em": HTMLElement;"embed": HTMLEmbedElement;"fieldset": HTMLFieldSetElement;"figcaption": HTMLElement;"figure": HTMLElement;"font": HTMLFontElement;"footer": HTMLElement;"form": HTMLFormElement;"frame": HTMLFrameElement;"frameset": HTMLFrameSetElement;"h1": HTMLHeadingElement;"h2": HTMLHeadingElement;"h3": HTMLHeadingElement;"h4": HTMLHeadingElement;"h5": HTMLHeadingElement;"h6": HTMLHeadingElement;"head": HTMLHeadElement;"header": HTMLElement;"hgroup": HTMLElement;"hr": HTMLHRElement;"html": HTMLHtmlElement;"i": HTMLElement;"iframe": HTMLIFrameElement;"img": HTMLImageElement;"input": HTMLInputElement;"ins": HTMLModElement;"kbd": HTMLElement;"label": HTMLLabelElement;"legend": HTMLLegendElement;"li": HTMLLIElement;"link": HTMLLinkElement;"main": HTMLElement;"map": HTMLMapElement;"mark": HTMLElement;"marquee": HTMLMarqueeElement;"menu": HTMLMenuElement;"meta": HTMLMetaElement;"meter": HTMLMeterElement;"nav": HTMLElement;"noscript": HTMLElement;"object": HTMLObjectElement;"ol": HTMLOListElement;"optgroup": HTMLOptGroupElement;"option": HTMLOptionElement;"output": HTMLOutputElement;"p": HTMLParagraphElement;"param": HTMLParamElement;"picture": HTMLPictureElement;"pre": HTMLPreElement;"progress": HTMLProgressElement;"q": HTMLQuoteElement;"rp": HTMLElement;"rt": HTMLElement;"ruby": HTMLElement;"s": HTMLElement;"samp": HTMLElement;"script": HTMLScriptElement;"section": HTMLElement;"select": HTMLSelectElement;"slot": HTMLSlotElement;"small": HTMLElement;"source": HTMLSourceElement;"span": HTMLSpanElement;"strong": HTMLElement;"style": HTMLStyleElement;"sub": HTMLElement;"summary": HTMLElement;"sup": HTMLElement;"table": HTMLTableElement;"tbody": HTMLTableSectionElement;"td": HTMLTableDataCellElement;"template": HTMLTemplateElement;"textarea": HTMLTextAreaElement;"tfoot": HTMLTableSectionElement;"th": HTMLTableHeaderCellElement;"thead": HTMLTableSectionElement;"time": HTMLTimeElement;"title": HTMLTitleElement;"tr": HTMLTableRowElement;"track": HTMLTrackElement;"u": HTMLElement;"ul": HTMLUListElement;"var": HTMLElement;"video": HTMLVideoElement;"wbr": HTMLElement;
}