JS 参考手册

JS 参考手册(类别排序) JS 参考手册(字母排序)

JavaScript

JS Array JS Boolean JS Classes JS Date JS Error JS Global JS JSON JS Math JS Number JS 运算符 JS RegExp JS 语句 JS String

HTML DOM

DOM Attributes DOM Document DOM Element DOM Events DOM Event 对象 DOM HTMLCollection DOM Location DOM Navigator DOM Screen DOM Style
alignContent alignItems alignSelf animation animationDelay animationDirection animationDuration animationFillMode animationIterationCount animationName animationTimingFunction animationPlayState background backgroundAttachment backgroundColor backgroundImage backgroundPosition backgroundRepeat backgroundClip backgroundOrigin backgroundSize backfaceVisibility border borderBottom borderBottomColor borderBottomLeftRadius borderBottomRightRadius borderBottomStyle borderBottomWidth borderCollapse borderColor borderImage borderImageOutset borderImageRepeat borderImageSlice borderImageSource borderImageWidth borderLeft borderLeftColor borderLeftStyle borderLeftWidth borderRadius borderRight borderRightColor borderRightStyle borderRightWidth borderSpacing borderStyle borderTop borderTopColor borderTopLeftRadius borderTopRightRadius borderTopStyle borderTopWidth borderWidth bottom boxShadow boxSizing captionSide caretColor clear clip color columnCount columnFill columnGap columnRule columnRuleColor columnRuleStyle columnRuleWidth columns columnSpan columnWidth counterIncrement counterReset cursor direction display emptyCells filter flex flexBasis flexDirection flexFlow flexGrow flexShrink flexWrap cssFloat font fontFamily fontSize fontStyle fontVariant fontWeight fontSizeAdjust height isolation justifyContent left letterSpacing lineHeight listStyle listStyleImage listStylePosition listStyleType margin marginBottom marginLeft marginRight marginTop maxHeight maxWidth minHeight minWidth objectFit objectPosition opacity order orphans outline outlineColor outlineOffset outlineStyle outlineWidth overflow overflowX overflowY padding paddingBottom paddingLeft paddingRight paddingTop pageBreakAfter pageBreakBefore pageBreakInside perspective perspectiveOrigin position quotes resize right scrollBehavior tableLayout tabSize textAlign textAlignLast textDecoration textDecorationColor textDecorationLine textDecorationStyle textIndent textOverflow textShadow textTransform top transform transformOrigin transformStyle transition transitionProperty transitionDuration transitionTimingFunction transitionDelay unicodeBidi userSelect verticalAlign visibility width wordBreak wordSpacing wordWrap widows zIndex
DOM Window

Web APIs

API Console API Geolocation API History API Storage

HTML 对象

<a> <abbr> <address> <area> <article> <aside> <audio> <b> <base> <bdo> <blockquote> <body> <br> <button> <canvas> <caption> <cite> <code> <col> <colgroup> <datalist> <dd> <del> <details> <dfn> <dialog> <div> <dl> <dt> <em> <embed> <fieldset> <figcaption> <figure> <footer> <form> <head> <header> <h1> - <h6> <hr> <html> <i> <iframe> <img> <ins> <input> button <input> checkbox <input> color <input> date <input> datetime <input> datetime-local <input> email <input> file <input> hidden <input> image <input> month <input> number <input> password <input> radio <input> range <input> reset <input> search <input> submit <input> text <input> time <input> url <input> week <kbd> <label> <legend> <li> <link> <map> <mark> <menu> <menuitem> <meta> <meter> <nav> <object> <ol> <optgroup> <option> <output> <p> <param> <pre> <progress> <q> <s> <samp> <script> <section> <select> <small> <source> <span> <strong> <style> <sub> <summary> <sup> <table> <tbody> <td> <tfoot> <th> <thead> <tr> <textarea> <time> <title> <track> <u> <ul> <var> <video>

其他参考手册

CSSStyleDeclaration JS 类型转换


HTML DOM removeChild() 方法

❮ Element 对象

实例

从列表中删除一个项目:

var list = document.getElementById("myList");   // Get the <ul> element with id="myList"
list.removeChild(list.childNodes[0]);           // Remove <ul>'s first child node (index 0)

删除之前:

  • Coffee
  • Tea
  • Milk

删除之后:

  • Tea
  • Milk
亲自试一试 »

页面下方有更多实例。


定义和用法

removeChild() 方法指定元素的某个指定的子节点。

以 Node 对象返回被删除的节点,如果节点不存在则返回 null

注释:移除的子节点不再是DOM的一部分。但是,使用此方法返回的引用,可以在以后将删除的子元素插入到元素中(请参阅"更多示例")。

提示: 使用 appendChild()insertBefore() 方法将删除的节点插入同一文档。要将其插入另一个文档,请使用 document.adoptNode()document.importNode() 方法。


浏览器支持

方法
removeChild() Yes Yes Yes Yes Yes

语法

node.removeChild(node)

参数值

参数 类型 描述
node Node object 必需。要删除的节点对象


技术细节

返回值: Node 节点对象,表示移除的节点,如果节点不存在,则为 null
DOM 版本 Core Level 1 Node Object

更多实例

实例

找出列表是否有子节点。如果是,请删除其第一个子节点(索引0):

// Get the <ul> element with id="myList"
var list = document.getElementById("myList");

// If the <ul> element has any child nodes, remove its first child node
if (list.hasChildNodes()) {
  list.removeChild(list.childNodes[0]);
}

删除之前:

  • Coffee
  • Tea
  • Milk

删除之后:

  • Tea
  • Milk
亲自试一试 »

实例

删除列表的所有子节点:

// Get the <ul> element with id="myList"
var list = document.getElementById("myList");

// As long as <ul> has a child node, remove it
while (list.hasChildNodes()) {  
  list.removeChild(list.firstChild);
}

删除之前:

  • Coffee
  • Tea
  • Milk

删除之后:

亲自试一试 »

实例

从父元素中删除 id="myLI" 的 <li> 元素(不指定其父节点):

var item = document.getElementById("myLI");
item.parentNode.removeChild(item);

删除之前:

  • Coffee
  • Tea
  • Milk

删除之后:

  • Coffee
  • Milk
亲自试一试 »

实例

从父元素中删除 <li> 元素,然后再次插入:

var item = document.getElementById("myLI");

function removeLi() {
  item.parentNode.removeChild(item);
}

function appendLi() {
  var list = document.getElementById("myList");
  list.appendChild(item);
}
亲自试一试 »

实例

从父元素中删除 <span> 元素,并将其插入另一个文档中的 <h1> 元素:

var child = document.getElementById("mySpan");

function removeLi() {
  child.parentNode.removeChild(child);
}

function myFunction() {
  var frame = document.getElementsByTagName("IFRAME")[0]
  var h = frame.contentWindow.document.getElementsByTagName("H1")[0];
  var x = document.adoptNode(child);
  h.appendChild(x);
}
亲自试一试 »

❮ Element 对象