Question

<span class="here one-two-del-del other1">test</span>
<span class="here one-two-aaa o2ther">test</span>
<span class="here one-two-dsf other3">test</span>
<span class="here one-two-213 o4ther">test</span>
<span class="here one-two-sdf other5">test</span>
<span class="here one-two-sdff o6ther">test</span>

<span class="set one-two-aaaa">set 1</span> <br />
<span class="set one-two-bb-fff">set 2</span> <br />
<span class="set one-two-vcvc">set 3</span> <br />
<span class="set one-two-fgdfg-dfgfd-fgf">set 4</span> <br />

$('.set').click(function(){
  $('#here').???
})

我想 - 如果我点击.set然后这应该得到自己的类并替换所有.here。

例如，如果我点击 set 2 ，那么所有跨越类.here应该是：

<span class="here one-two-bb-fff other1">test</span>
<span class="here one-two-bb-fff o2ther">test</span>
<span class="here one-two-bb-fff other3">test</span>
<span class="here one-two-bb-fff o4ther">test</span>
<span class="here one-two-bb-fff other5">test</span>
<span class="here one-two-bb-fff o6ther">test</span>

我不能使用removeClass，因为我不知道当前的类是怎么回事。如果我使用.attr（'class'，'new'）然后替换所有类，但我仍然必须有class other，o2ther等

http://jsfiddle.net/NNhDd/

也许我必须使用正则表达式？

Answer 1

<强> HTML

<span class="here one-two-del-del other1">test</span>
<span class="here one-two-aaa o2ther">test</span>
<span class="here one-two-dsf other3">test</span>
<span class="here one-two-213 o4ther">test</span>
<span class="here one-two-sdf other5">test</span>
<span class="here one-two-sdff o6ther">test</span>

<br />

<span class="set one-two-aaaa">set 1</span> <br />
<span class="set one-two-bb-fff">set 2</span> <br />
<span class="set one-two-vcvc">set 3</span> <br />
<span class="set one-two-fgdfg-dfgfd-fgf">set 4</span>

<强>的JavaScript

$('.set').click(function () {
    var replaceWith = $(this).attr('class');
    // Remove the "set " from replaceWith
    replaceWith = replaceWith.replace(/set ?/g, '');

    $('.here').each(function () {
        var newClass = $(this).attr('class');
        newClass = newClass.replace(/one-two-[^ $]+/, '');
        newClass = newClass + ' ' + replaceWith;
        // Now set the new class
        $(this).attr('class', newClass);
    });
})

这是一个小提琴：http://jsfiddle.net/NNhDd/3/

使用jQuery修改类

1 个答案: