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XMLHttpRequest status 0 (responseText is empty)
Cannot get data with XMLHttpRequest (status 0 and responseText is empty):
19 Answers
1...
How to check command line parameter in “.bat” file?
...ne parameter then I will do something. I have created following .bat file. It works for -b and not-equal to -b cases - but it fails when user does not pass any command-line parameter.
...
What does |= (ior) do in Python?
...an update operation
counters: a union (of multisets) operation
numbers: a bitwise OR, binary operation
In most cases, it is related to the | operator. See examples below.
Sets
For example, the union of two assigned sets s1 and s2 share the following equivalent expressions:
>>> s1 = s1 | s...
LINQ to Entities does not recognize the method 'System.String ToString()' method, and this method ca
...he string to a temp variable and then use that in your expression:
var strItem = item.Key.ToString();
IQueryable<entity> pages = from p in context.pages
where p.Serial == strItem
select p;
The problem arises because ToString() isn't re...
Get data from fs.readFile
...t @Raynos said, the function you have defined is an asynchronous callback. It doesn't execute right away, rather it executes when the file loading has completed. When you call readFile, control is returned immediately and the next line of code is executed. So when you call console.log, your callback...
Cannot install node modules that require compilation on Windows 7 x64/VS2012
...cannot install any of the modules that require compilation. All they fail with the following error:
17 Answers
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What code analysis tools do you use for your Java projects? [closed]
...kstyle.
CPD is the PMD "Copy/Paste Detector" tool. I was using PMD for a little while before I noticed the "Finding Duplicated Code" link on the PMD web page.
I'd like to point out that these tools can sometimes be extended beyond their "out-of-the-box" set of rules. And not just because they're o...
How can I concatenate regex literals in JavaScript?
Is it possible to do something like this?
12 Answers
12
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Why use a ReentrantLock if one can use synchronized(this)?
...t if one can use synchronized (this) . In the dummy code below, I can do either:
8 Answers
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How can I get the source code of a Python function?
...p:
If foo is defined as:
def foo(arg1,arg2):
#do something with args
a = arg1 + arg2
return a
Then:
import inspect
lines = inspect.getsource(foo)
print(lines)
Returns:
def foo(arg1,arg2):
#do something with args
a = arg1 + arg2 ...