console.dir(title);

• dir를 이용해 내가 원하는 요소에 속한 모든 이벤트를 확인할수있다.

accessKey: ""
align: ""
ariaAtomic: null
ariaAutoComplete: null
ariaBusy: null
ariaChecked: null
ariaColCount: null
ariaColIndex: null
ariaColSpan: null
ariaCurrent: null
ariaDescription: null
ariaDisabled: null
ariaExpanded: null
ariaHasPopup: null
ariaHidden: null
ariaInvalid: null
ariaKeyShortcuts: null
ariaLabel: null
ariaLevel: null
ariaLive: null
ariaModal: null
ariaMultiLine: null
ariaMultiSelectable: null
ariaOrientation: null
ariaPlaceholder: null
ariaPosInSet: null
ariaPressed: null
ariaReadOnly: null
ariaRelevant: null
ariaRequired: null
ariaRoleDescription: null
ariaRowCount: null
ariaRowIndex: null
ariaRowSpan: null
ariaSelected: null
ariaSetSize: null
ariaSort: null
ariaValueMax: null
ariaValueMin: null
ariaValueNow: null
ariaValueText: null
assignedSlot: null
attributeStyleMap: StylePropertyMap {size: 0}
attributes: NamedNodeMap {length: 0}
autocapitalize: ""
autofocus: false
baseURI: "http://127.0.0.1:5500/momentum3/index.html"
childElementCount: 0
childNodes: NodeList [text]
children: HTMLCollection []
classList: DOMTokenList [value: '']
className: ""
clientHeight: 42
clientLeft: 0
clientTop: 0
clientWidth: 1495
contentEditable: "inherit"
dataset: DOMStringMap {}
dir: ""
draggable: false
elementTiming: ""
enterKeyHint: ""
firstChild: text
firstElementChild: null
hidden: false
id: ""
inert: false
innerHTML: "grapb me1"
innerText: "grapb me1"
inputMode: ""
isConnected: true
isContentEditable: false
lang: ""
lastChild: text
lastElementChild: null
localName: "h1"
namespaceURI: "http://www.w3.org/1999/xhtml"
nextElementSibling: null
nextSibling: text
nodeName: "H1"
nodeType: 1
nodeValue: null
nonce: ""
offsetHeight: 42
offsetLeft: 8
offsetParent: body
offsetTop: 21
offsetWidth: 1495
onabort: null
onanimationend: null
onanimationiteration: null
onanimationstart: null
onauxclick: null
onbeforecopy: null
onbeforecut: null
onbeforematch: null
onbeforepaste: null
onbeforexrselect: null
onblur: null
oncancel: null
oncanplay: null
oncanplaythrough: null
onchange: null
onclick: null
onclose: null
oncontextlost: null
oncontextmenu: null
oncontextrestored: null
oncopy: null
oncuechange: null
oncut: null
ondblclick: null
ondrag: null
ondragend: null
ondragenter: null
ondragleave: null
ondragover: null
ondragstart: null
ondrop: null
ondurationchange: null
onemptied: null
onended: null
onerror: null
onfocus: null
onformdata: null
onfullscreenchange: null
onfullscreenerror: null
ongotpointercapture: null
oninput: null
oninvalid: null
onkeydown: null
onkeypress: null
onkeyup: null
onload: null
onloadeddata: null
onloadedmetadata: null
onloadstart: null
onlostpointercapture: null
onmousedown: null
onmouseenter: null
onmouseleave: null
onmousemove: null
onmouseout: null
onmouseover: null
onmouseup: null
onmousewheel: null
onpaste: null
onpause: null
onplay: null
onplaying: null
onpointercancel: null
onpointerdown: null
onpointerenter: null
onpointerleave: null
onpointermove: null
onpointerout: null
onpointerover: null
onpointerrawupdate: null
onpointerup: null
onprogress: null
onratechange: null
onreset: null
onresize: null
onscroll: null
onsearch: null
onsecuritypolicyviolation: null
onseeked: null
onseeking: null
onselect: null
onselectionchange: null
onselectstart: null
onslotchange: null
onstalled: null
onsubmit: null
onsuspend: null
ontimeupdate: null
ontoggle: null
ontransitioncancel: null
ontransitionend: null
ontransitionrun: null
ontransitionstart: null
onvolumechange: null
onwaiting: null
onwebkitanimationend: null
onwebkitanimationiteration: null
onwebkitanimationstart: null
onwebkitfullscreenchange: null
onwebkitfullscreenerror: null
onwebkittransitionend: null
onwheel: null
outerHTML: "<h1>grapb me1</h1>"
outerText: "grapb me1"
ownerDocument: document
parentElement: div.hello
parentNode: div.hello
part: DOMTokenList [value: '']
prefix: null
previousElementSibling: null
previousSibling: text
role: null
scrollHeight: 42
scrollLeft: 0
scrollTop: 0
scrollWidth: 1495
shadowRoot: null
slot: ""
spellcheck: true
style: CSSStyleDeclaration {accentColor: '', additiveSymbols: '', alignContent: '', alignItems: '', alignSelf: '', …}
tabIndex: -1
tagName: "H1"
textContent: "grapb me1"
title: ""
translate: true
virtualKeyboardPolicy: ""
[[Prototype]]: HTMLHeadingElement

• 이 목록중 on으로 시작하는것이 이벤트 목록이고 이 이벤트를 실행하고싶으면 on을 빼고 쓰면 된다,
  • onclick → click

다중 이벤트 실행하기

function moseEnt(){
    title.innerHTML="mouse is here"
}

function moseLeave(){
    title.innerHTML="mouse is out"
}

//title의 내용아 바뀌는 2개의 함수이다

//이 함수를 각각 정의한 변수에 추가한다 (실행조건, 실행함수)
title.addEventListener("mouseenter",moseEnt)
//마우스가 올라오면 실행한다
title.addEventListener("mouseleave",moseLeave)
//마우스가 떨어지면 실행한다