在Ajax响应尾随空格 [英] Trailing spaces in Ajax response

问题描述

我想使用 Qunit 测试一些code，但我有一些问题Ajax调用。我甚至不能让他们用最简单的Ajax调用使用jQuery方法正确测试。这些问题似乎是一个尾随空格被追加到textResponse，无论我做什么。

I am trying to use Qunit to test some code, but I have some problems with Ajax calls. I cannot even get them to test correctly with the simplest Ajax call using jQuery methods. The problems seems to be that a trailing space is appended to the textResponse, no matter what I do.

我的初始code是像

asyncTest('Ajax calls', function() {
    expect(1);

    $.get('ajax.txt', {}, function(response) {
        equal(response, 'foo', 'Ajax calls work correctly');
    });

    setTimeout(function() {
        start();
    }, 600);
});

其中， ajax.txt 是包含olny的字符的文本文件富。这个测试失败，报告

where ajax.txt is a text file containing olny the characters foo. This test fails, reporting

正确的Ajax调用工作，预计：富的结果：富，差异：<打击>福福

Ajax calls work correctly, expected: "foo" result: "foo ", diff: "foo" "foo "

我已经然后尝试以下操作：

I have then tried the following:

• 在我对富（包括空格）
测试
• 在我做了 response.replace（''，''）测试之前
• 在我有各种不同的ajax.txt文件的字体编码
• 我已经从Firefox和Chrome，每次清除缓存测试它
• 我手动为警报内部测试其相等，甚至==比较

• I have tested against "foo " (including a trailing space)
• I have done response.replace(' ', '') before testing
• I have varied the font encoding of the ajax.txt file
• I have tested it both in Firefox and Chrome, each time cleaning the cache
• I have manually tested for equality inside an alert, even with == comparison

但在任何情况下，我能得到匹配。例如在第一个变种我得到了令人费解的答案

but in no case I was able to get a match. For instance in the first variant I got the puzzling answer

正确的Ajax调用工作，预计：富的结果：富，差异：富

Ajax calls work correctly, expected: "foo " result: "foo ", diff: "foo "

我现在就是稍微疯了。我能一直在可能做错了什么？

I am now going slightly mad. What could I have been possibly doing wrong?

推荐答案

可以 $修剪（） （jQuery的修剪，因为IE浏览器＆LT; 9没有它本身）的结果，这样的：

You can $.trim() (jQuery trim, since IE<9 doesn't have it natively) the result, like this:

equal($.trim(response), 'foo', 'Ajax calls work correctly');

为什么的是这种情况发生？这可能是一个格式错误，例如Unix的VS被你匍匐在那里的Windows行结尾。

Why is this happening? It's likely a formatting error, e.g. Unix vs Windows line endings that are creeping in there on you.

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