给定一个HTML，包括jQuery，下划线和以下JS：
$ cat src/test.coffee
$ ->
rows = $('tr')
filtered = rowsWithChildren rows
console.log filtered
rowsWithChildren = (rows) ->
_.filter rows, (r) -> hasChildren r
hasChildren = (row) ->
row.children().length == 1
$ cat test.html
<!DOCTYPE html>
<html>
<head>
<title>test</title>
</head>
<body>
<table>
<tr class='foo'><td>one</td></tr>
<tr class='foo'><td>two</td></tr>
<tr class='foo'><td>three</td></tr>
</table>
<script type="text/javascript" src="http://underscorejs.org/underscore.js"></script>
<script type="text/javascript" src="https://code.jquery.com/jquery-3.1.0.js"></script>
<script type="text/javascript" src="./lib/test.js"></script>
</body>
</html>
然后，我编译了test.coffee代码：
$coffee --compile --output lib/ src/
$
我的浏览器Console在打开页面时显示以下错误：
jQuery.Deferred exception: row.children is not a function TypeError: row.children is not a function
at hasChildren (file:///home/kevin/src/javascript_sandbox/jquery_function/lib/test.js:19:16)
at file:///home/kevin/src/javascript_sandbox/jquery_function/lib/test.js:14:14
at http://underscorejs.org/underscore.js:227:11
at Function._.each._.forEach (http://underscorejs.org/underscore.js:153:9)
at Function._.filter._.select (http://underscorejs.org/underscore.js:226:7)
at rowsWithChildren (file:///home/kevin/src/javascript_sandbox/jquery_function/lib/test.js:13:14)
at HTMLDocument.<anonymous> (file:///home/kevin/src/javascript_sandbox/jquery_function/lib/test.js:8:16)
at mightThrow (https://code.jquery.com/jquery-3.1.0.js:3508:29)
at process (https://code.jquery.com/jquery-3.1.0.js:3576:12) undefined
jquery-3.1.0.js:3793 Uncaught TypeError: row.children is not a function
如何解决此错误？
答案 0 :(得分：0)
（我没有足够的声誉来评论，这实际上不是答案，而是评论。）
您的jQuery源似乎有错误。你真的把它包括在内吗？似乎在这里工作得很好：http://fiddlesalad.com/coffeescript/