HTML并不是真正的编程语言,它是一种用于定义内容结构的标记语言。 元素(Element):开标签、闭标签与内容相结合,便是一个完整的元素。元素可以用来封装不同部分的内容,使其以某种方式呈现或者工作。 元素也可以有属性(Attribute)。一个属性应该包含:属性的名称,并接上一个等号;由引号所包围的属性值。 class属性允许...
An ID attribute's value must not contain ASCII whitespace characters. Browsers treat non-conforming IDs that contain whitespace as if the whitespace is part of the ID. In contrast to the class attribute, which allows space-separated values, elements can only have one single ID value. Technically...
Element.setAttribute()(Element指引用了HTML中的元素的JS变量;第一参数是属性,第二个参数是值):a DOM API function,给元素添加属性和值,如果属性已经存在,则更新值。它可以方便我们给元素添加样式。例子:panel.setAttribute('class', 'msgBox');。 Node.textContent:a property(属性), represents the text content...
The outerHTML attribute of the Element DOM interface gets the serialized HTML fragment describing the element including its descendants. It can also be set to replace the element with nodes parsed from the given string. To only obtain the HTML representation of the contents of an element, or to...
jsCopy to Clipboard class Something { name = "Something Good"; constructor(element) { // Note that the listeners in this case are `this`, not this.handleEvent element.addEventListener("click", this, false); element.addEventListener("dblclick", this, false); } handleEvent(event) { console....
classidHTML 4only;Obsolete sinceHTML5 The URI of the object's implementation. It can be used together with, or in place of, thedataattribute. codebaseHTML 4only;Obsolete sinceHTML5 The base path used to resolve relative URIs specified byclassid,data, orarchive. If not specified, the defau...
innerHTML 1 Toggle history 12 Toggle history 1 Toggle history 8 Toggle history 1 Toggle history 18 Toggle history 4 Toggle history 10.1 Toggle history 1 Toggle history 1.0 Toggle history 1 Toggle history Legend Tip: you can click/tap on a cell for more information. ...
js window.onresize=(e)=>console.log(e.currentTarget);document.body.onresize=(e)=>console.log(e.currentTarget); html <bodyonresize="console.log(event.currentTarget)"></body> In all three cases, you see theWindowobject logged ascurrentTarget. ...
The outerHTML attribute of the Element DOM interface gets the serialized HTML fragment describing the element including its descendants. It can also be set to replace the element with nodes parsed from the given string. To only obtain the HTML representation of the contents of an element, or to...
js window.onresize=(e)=>console.log(e.currentTarget);document.body.onresize=(e)=>console.log(e.currentTarget); html <bodyonresize="console.log(event.currentTarget)"></body> In all three cases, you see theWindowobject logged ascurrentTarget. ...