我正在尝试从示例运行简单的代码:
require.paths.unshift('/etc/npm'); // path to modules
var httpAgent = require('http-agent'),
jsdom = require('jsdom'),
sys = require('sys');
var agent = httpAgent.create('www.twitter.com', ['', 'about']);
agent.addListener('next', function (e, agent) {
var body = agent.body;
var window = jsdom.jsdom(body, {},{}).createWindow();
jsdom.jQueryify(window, 'http://code.jquery.com/jquery-1.4.2.js', function (window, jquery) {
agent.next();
});
});
agent.addListener('stop', function (agent) {
sys.puts('the agent has stopped');
});
agent.start();
但它在此行返回很多错误:
var window = jsdom.jsdom(body, {},{}).createWindow();
错误:
kir@nas:~/node$ node test.js
/usr/local/lib/node/.npm/jsdom/0.1.21/package/lib/jsdom/browser/index.js:197
if (!dom.HTMLDocument.write) {
^
TypeError: Cannot read property 'write' of undefined
at Object.browserAugmentation (/usr/local/lib/node/.npm/jsdom/0.1.21/package/lib/jsdom/browser/index.js:197:24)
at Object.jsdom (/usr/local/lib/node/.npm/jsdom/0.1.21/package/lib/jsdom.js:15:25)
at EventEmitter.<anonymous> (/home/kir/node/test.js:12:22)
at EventEmitter.emit (events:27:15)
at Object.emit (/usr/local/lib/node/.npm/http-agent/0.1.0/package/lib/http-agent.js:180:41)
at /usr/local/lib/node/.npm/http-agent/0.1.0/package/lib/http-agent.js:145:14
at IncomingMessage.<anonymous> (/usr/local/lib/node/.npm/request/0.10.0/package/lib/main.js:89:7)
at IncomingMessage.emit (events:41:20)
at HTTPParser.onMessageComplete (http:107:23)
at Client.onData [as ondata] (http:848:27)
我有带有稳定的node.js 0.2.5的Ubuntu 10.10。 WTF?
最佳答案
对于jsom而言,这是正常的工作,正在进行中,DOM API庞大,重新实现所有浏览器怪癖需要花费大量时间。
但是首先,您调用jsdom.jsdom(body, {},{}).createWindow();
是错误的,第二个参数应该是一个完全配置的DOM对象,如果您不提供该参数,则只需传递null
使其回到默认值即可。
但是在那之后,它一直都是乌龟。
例如,Twitter执行此window.top.location
,结果表明jsdom没有定义window.top
和BOOM!
解决这个问题,是的,乌龟。错误不会停止,如果您有兴趣彻底解决它,请打开<npm folder>/jsdom/0.1.21/package/lib/jsdom/level2/languages/javascript.js
在那里,您可以记录代码并修复window
对象,直到它起作用为止。
关于jquery - jsdom的奇怪错误-node.js,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/4378176/