代码不是:

var text  =  $('#listItem').clone().children().remove().end().text();

只是为了jQuery而变成jQuery ?当简单的操作涉及到这么多链接命令和这么多(不必要的)处理时，也许是时候写一个jQuery扩展了:

(function ($) {
    function elementText(el, separator) {
        var textContents = [];
        for(var chld = el.firstChild; chld; chld = chld.nextSibling) {
            if (chld.nodeType == 3) { 
                textContents.push(chld.nodeValue);
            }
        }
        return textContents.join(separator);
    }
    $.fn.textNotChild = function(elementSeparator, nodeSeparator) {
    if (arguments.length<2){nodeSeparator="";}
    if (arguments.length<1){elementSeparator="";}
        return $.map(this, function(el){
            return elementText(el,nodeSeparator);
        }).join(elementSeparator);
    }
} (jQuery));

电话:

var text = $('#listItem').textNotChild();

这些参数用于在遇到不同的场景时使用，例如

<li>some text<a>more text</a>again more</li>
<li>second text<a>more text</a>again more</li>

var text = $("li").textNotChild(".....","<break>");

文本将具有以下值:

some text<break>again more.....second text<break>again more

这是一个老问题，但上面的答案效率很低。这里有一个更好的解决方案:

$.fn.myText = function() {
    var str = '';

    this.contents().each(function() {
        if (this.nodeType == 3) {
            str += this.textContent || this.innerText || '';
        }
    });

    return str;
};

然后这样做:

$("#foo").myText();

我建议使用createTreeWalker来查找所有没有附加到html元素的文本元素(这个函数可以用来扩展jQuery):

function textNodesOnlyUnder(el) { var resultSet = []; var n = null; var treeWalker = document.createTreeWalker(el, NodeFilter.SHOW_TEXT, function (node) { if (node.parentNode.id == el.id && node.textContent.trim().length != 0) { return NodeFilter.FILTER_ACCEPT; } return NodeFilter.FILTER_SKIP; }, false); while (n = treeWalker.nextNode()) { resultSet.push(n); } return resultSet; } window.onload = function() { var ele = document.getElementById('listItem'); var textNodesOnly = textNodesOnlyUnder(ele); var resultingText = textNodesOnly.map(function(val, index, arr) { return 'Text element N. ' + index + ' --> ' + val.textContent.trim(); }).join('\n'); document.getElementById('txtArea').value = resultingText; } <li id="listItem"> This is some text <span id="firstSpan">First span text</span> <span id="secondSpan">Second span text</span> </li> <textarea id="txtArea" style="width: 400px;height: 200px;"></textarea>

它需要是根据需求量身定制的，这取决于你所看到的结构。对于你提供的例子，这是有效的:

$(document).ready(function(){
     var $tmp = $('#listItem').children().remove();
     $('#listItem').text('').append($tmp);
});

演示:http://jquery.nodnod.net/cases/2385/run

但这取决于标记是否与你发布的内容相似。

这对我来说是个好方法

   var text  =  $('#listItem').clone().children().remove().end().text();

不确定有多灵活或多少情况下，你需要它覆盖，但对于你的例子，如果文本总是出现在第一个HTML标签之前-为什么不只是在第一个标签上分割内部HTML，并采取前者:

$('#listItem').html().split('<span')[0]; 

如果你需要更宽一点

$('#listItem').html().split('<')[0]; 

如果你需要两个标记之间的文本，比如在一件事之后，但在另一件事之前，你可以做一些像(untesting)这样的事情，并使用if语句使它足够灵活，有一个开始或结束标记，或两者都有，同时避免null ref错误:

var startMarker = '';// put any starting marker here
var endMarker = '<';// put the end marker here
var myText = String( $('#listItem').html() );
// if the start marker is found, take the string after it
myText = myText.split(startMarker)[1];        
// if the end marker is found, take the string before it
myText = myText.split(endMarker)[0];
console.log(myText); // output text between the first occurrence of the markers, assuming both markers exist.  If they don't this will throw an error, so some if statements to check params is probably in order...

I generally make utility functions for useful things like this, make them error free, and then rely on them frequently once solid, rather than always rewriting this type of string manipulation and risking null references etc. That way, you can re-use the function in lots of projects and never have to waste time on it again debugging why a string reference has an undefined reference error. Might not be the shortest 1 line code ever, but after you have the utility function, it is one line from then on. Note most of the code is just handling parameters being there or not to avoid errors :)

例如:

/**
* Get the text between two string markers.
**/
function textBetween(__string,__startMark,__endMark){
    var hasText = typeof __string !== 'undefined' && __string.length > 0;
    if(!hasText) return __string;
    var myText = String( __string );
    var hasStartMarker = typeof __startMark !== 'undefined' && __startMark.length > 0 && __string.indexOf(__startMark)>=0;
    var hasEndMarker =  typeof __endMark !== 'undefined' && __endMark.length > 0 && __string.indexOf(__endMark) > 0;
    if( hasStartMarker )  myText = myText.split(__startMark)[1];
    if( hasEndMarker )    myText = myText.split(__endMark)[0];
    return myText;
}

// now with 1 line from now on, and no jquery needed really, but to use your example:
var textWithNoHTML = textBetween( $('#listItem').html(), '', '<'); // should return text before first child HTML tag if the text is on page (use document ready etc)