jQuery 替换 html 页面中所有出现的字符串 [英] jQuery replace all occurrences of a string in an html page

问题描述

我正在做一个项目，我需要用另一个字符串替换所有出现的字符串.但是，如果它是文本，我只想替换字符串.比如我想转这个...

<h1>Hi</h1><h2 class="Hi">测试</h2>你好

进入...

<h1>你好</h1><h2 class="Hi">测试</h2>你好

在那个例子中，除了作为 h2 类的Hi"之外，所有的Hi"都变成了Hello".我试过了...

$("#container").html( $("#container").html().replace(/Hi/g, "Hello" ) )

... 但这也替换了 html 中所有出现的Hi"

解决方案

这个:

$("#container").contents().each(function () {if (this.nodeType === 3) this.nodeValue = $.trim($(this).text()).replace(/Hi/g, "Hello")if (this.nodeType === 1) $(this).html( $(this).html().replace(/Hi/g, "Hello") )})

产生这个:

<h1>你好</h1><h2 class="Hi">测试</h2>你好

jsFiddle 示例

I'm working on a project where I need to replace all occurrences of a string with another string. However, I only want to replace the string if it is text. For example, I want to turn this...

<div id="container">
  <h1>Hi</h1>
  <h2 class="Hi">Test</h2>
  Hi
</div>

into...

<div id="container">
  <h1>Hello</h1>
  <h2 class="Hi">Test</h2>
  Hello
</div>

In that example all of the "Hi"s were turned into "Hello"s except for the "Hi" as the h2 class. I have tried...

$("#container").html( $("#container").html().replace( /Hi/g, "Hello" ) )

... but that replaces all occurrences of "Hi" in the html as well

解决方案

This:

$("#container").contents().each(function () {
    if (this.nodeType === 3) this.nodeValue = $.trim($(this).text()).replace(/Hi/g, "Hello")
    if (this.nodeType === 1) $(this).html( $(this).html().replace(/Hi/g, "Hello") )
})

Produces this:

<div id="container">
    <h1>Hello</h1>
    <h2 class="Hi">Test</h2>
    Hello
</div>

jsFiddle example

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