我有一个HTML文本，如：
'<div class="a"><span>1</span><div>2</div></div>'
是否有封库中的函数来获得这样的字符串作为输入，并返回一个DOM树在文档中插入？
Answer 1:
Closure库提供了函数goog.dom.safeHtmlToNode(html)来创建文档片段（ Node从一个） goog.html.SafeHtml对象，可以使用被创建goog.html.sanitizer.HtmlSanitizer如下所示。
例
<!doctype html>
<html>
<head>
<title>Closure Library Dom Test</title>
<script src="https://cdn.rawgit.com/google/closure-library/master/closure/goog/base.js"></script>
<script>
goog.require('goog.dom');
goog.require('goog.html.SafeHtml');
goog.require('goog.html.sanitizer.HtmlSanitizer');
</script>
</head>
<body>
<h1>Closure Library Dom Test</h1>
<div id="main">
</div>
<script>
var sanitizer = new goog.html.sanitizer.HtmlSanitizer.Builder().build();
var fragment = goog.dom.safeHtmlToNode(
sanitizer.sanitize('<div class="a"><span>1</span><div>2</div></div>'));
goog.dom.append(/** @type {!Node} */(document.querySelector('#main')),
/** @type {!Node} */(fragment));
</script>
</body>
</html>
文章来源: Closure library dom node from html text
