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除了粗体之外,Jquery删除所有内容

[英]Jquery remove everything except for bolded

I have html like this: 我有这样的HTML:

<div id="divTestArea1">
    <b>Bold text</b>
    <i>Italic text</i>
    <div id="divTestArea2">
            <b>Bold text 2</b>
            <i>Italic text 2</i>
            <div>
                    <b>Bold text 3</b>
            </div>
    </div>

and I would like to remove all elements that aren't bold. 我想删除所有非粗体的元素。 I've tried with this code: 我试过这段代码:

$('*:not(b)').remove();

and a couple other variations but they all either error out or remove everything. 以及其他一些变化,但它们都会出错或删除所有内容。 btw, are jquery selectors and jsoup selectors 100% compatible? 顺便说一下,jquery选择器和jsoup选择器是否100%兼容? I'd like to use the answer to this in jsoup as well. 我也想在jsoup中使用这个答案。

Your current code removes the document <body> as well as all <div> s which contain the <b> tags. 您当前的代码删除了文档<body>以及包含<b>标记的所有<div> If you only want to save the bold text then Shih-En Chou's solution works well. 如果您只想保存粗体文本,那么Shih-En Chou的解决方案效果很好。 If you want to save the <div> structure that the <b> tags are in as well you could do this: 如果你想保存<b>标签所在的<div>结构,你可以这样做:

$("body *:not(div, b)")​​​​.remove();​

DEMO DEMO

My solution: 我的解决方案

I clone <b> and save it into memory. 我克隆<b>并将其保存到内存中。 ->Remove all -> insert <b> into <body> - >全部删除 - >将<b>插入<body>

here is my code: http://jsfiddle.net/sechou/43ENq/ 这是我的代码: http//jsfiddle.net/sechou/43ENq/

$(function(){
   var tmpB = $("b").clone();
   $('body').remove();
   $("body").append(tmpB);
});​

Move all elements in #divTestArea2 as it is a div and will be removed as well to #divTestArea1 , then filter out anything that is'nt a <b> and remove it : 移动#divTestArea2所有元素,因为它是div ,也将被删除到#divTestArea1 ,然后过滤掉任何不是<b>并将其删除:

$("#divTestArea1").append($("*", "#divTestArea2")).find('*').filter(function() {
    return this.tagName !== 'B';
}).remove();

FIDDLE 小提琴

The above keeps the #divTestArea1 element intact, to remove everything but the <b> elements, something like : 上面保持#divTestArea1元素完整,删除除<b>元素之外的所有元素,如:

$('body')​.append($('b'))​.find('*')​.not('b')​.remove();​

FIDDLE 小提琴

I prefer .detach() . 我更喜欢.detach()

var $body = $("body");
var $b = $("b", $body).detach();
$(":not(b)", $body).remove();​​​​​​​​​​​
$body.append($b);

This way you don't need to either move or clone anything to overcome the problem of the deletion of the objects wrapping your <b/> elements. 这样您就不需要移动或克隆任何东西来克服删除包裹<b/>元素的对象的问题。

(demo) (演示)

Try this: 试试这个:

// Find all the <b> tags and unwrap them so they all become siblings and finally 
// remove non <b> siblings
$('body').find('b').unwrap().siblings('*:not(b)').remove();

Demo: http://jsfiddle.net/3f2Hu/ 演示: http//jsfiddle.net/3f2Hu/

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