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 replaceChild() 方法

❮ Element 对象

实例

用一个新项目替换列表中的某个项目:

// Create a new text node called "Water"
var textnode = document.createTextNode("Water");

// Get the first child node of an <ul> element
var item = document.getElementById("myList").childNodes[0];

// Replace the first child node of <ul> with the newly created text node
item.replaceChild(textnode, item.childNodes[0]);

// 注释: This example replaces only the Text node "Coffee" with a Text node "Water"

替换之前:

  • Coffee
  • Tea
  • Milk

替换之后:

  • Water
  • Tea
  • Milk
亲自试一试 »

页面下方有更多实例。


定义和用法

replaceChild() 方法用新节点替换某个子节点。

这个新节点可以是文档中某个已存在的节点,或者您也可创建新的节点。

提示: 使用 removeChild() 方法从元素中删除子节点。


浏览器支持

方法
replaceChild() Yes Yes Yes Yes Yes

语法

node.replaceChild(newnode, oldnode)

参数值

参数 类型 描述
newnode Node object 必需。要插入的节点对象
oldnode Node object 必需。要删除的节点对象


技术细节

返回值: Node 节点对象,表示替换的节点
DOM 版本 Core Level 1 Node Object

更多实例

实例

用新的 <li> 元素替换列表中的 <li> 元素:

// Create a new <li> element
var elmnt = document.createElement("li");

// Create a new text node called "Water"
var textnode = document.createTextNode("Water");

// Append the text node to <li>
elmnt.appendChild(textnode);

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

// Replace the first child node (<li> with index 0) in <ul> with the newly created <li> element
item.replaceChild(elmnt, item.childNodes[0]);

// 注释: This example replaces the entire <li> element

移除前:

  • Coffee
  • Tea
  • Milk

移除后:

  • Water
  • Tea
  • Milk
亲自试一试 »

❮ Element 对象