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What is the “continue” keyword and how does it work in Java?
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Generally, I see continue (and break) as a warning that the code might use some refactoring, especially if the while or for loop declaration isn't immediately in sight. The same is true for return in the middle of a method, but fo...
Install a module using pip for specific python version
On Ubuntu 10.04 by default Python 2.6 is installed, then I have installed Python 2.7. How can I use pip install to install packages for Python 2.7.
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How to check if a variable is not null?
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This check is actually not safe. If myvar is 0, false or any other falsy value the test will fail (if you only intend to check for not null). So only use this to check for not null if the variable can never have another falsy value.
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Pipe subprocess standard output to a variable [duplicate]
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@Insomaniacal In this case, I knew usage is generally dumped to stderr. But in general, a simple test is to cmd > /dev/null if you still see output it's going to stderr. Confirm by piping stderr cmd 2> /dev/null and it should vanish into /dev/null.
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Can unit testing be successfully added into an existing production project? If so, how and is it wor
...oject that is in production. It was started 18 months ago before I could really see any benefit of TDD (face palm) , so now it's a rather large solution with a number of projects and I haven't the foggiest idea where to start in adding unit tests. What's making me consider this is that occasionally...
WPF Auto height in code
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Perhaps this link will help you.
At times, you may want to
programmatically set the Height or
Width of a WPF element to Auto in
code. To do this, just use the
Double.NaN (Not a Number) value.
For example, in C#:
this.txtName.Width = Double.NaN;
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builtins.TypeError: must be str, not bytes
... couldn't because they were using stdio). Now it can annoy Python users on all platforms. Hopefully, it will be worth the pain.
– Brent Bradburn
Aug 17 '13 at 6:11
5
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javascript check for not null
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while technically this works, a double not (!!) is a programming faux-pas. It is really the equivalent of if(val), which is much clearer to read. I would stick to that (fyi Ujwal, !!val should technically work in C or C++ also) see here f...
What is the purpose of Order By 1 in SQL select statement?
...is only has the sql tag. In Standard SQL only column correlation names are allowed in the OREDER BY clause because, in theory, the table correlation names are out of scope i.e. should be ORDER BY PAYMENT_DATE;. Of course, not all SQL implementations conform to Standards.
– oned...
Configure WAMP server to send email
...th me.
If you just want to test, here is a great tool for testing mail locally, that requires almost no configuration:
http://www.toolheap.com/test-mail-server-tool/
It worked right off the bat for me, hope this helps you.
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