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gcc makefile error: “No rule to make target …”
...ionships. If newer tools like SubCons or CMake are not to taste, gcc -MT and gnu make patterns can solve this. See also.
– Nathan Kidd
Mar 14 '13 at 18:09
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How to set entire application in portrait mode only?
... I set it so the application is running in portrait mode only? I want the landscape mode to be disabled while the application is running. How do I do it programmatically?
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How do I get a reference to the app delegate in Swift?
...off using the delegate accessible through the sharedApplication singleton. And as far as your second question goes, yes you probably want to use a constant. Even though, you may be changing the AppDelegate's properties, you probably won't be reassigning the pointer to anything else, in which case, t...
Scaling Node.js
...vered safe because they have experts testing there login-systems for holes and the also don't transmit passwords via plain-text but thank for god use https. I also have answered a topic for a user who wanted to use facebook-connect.
validation of input data
To validate input you could use node-val...
How to put attributes via XElement
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Is it possible to build a list or array of xAttr and add them all at once?
– greg
Apr 17 '19 at 16:27
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Is there a performance impact when calling ToList()?
...uge list, copying chunks of memory is quite a fast operation to perform.
Handy tip, As vs To
You'll notice in LINQ there are several methods that start with As (such as AsEnumerable()) and To (such as ToList()). The methods that start with To require a conversion like above (ie. may impact perform...
Section vs Article HTML5
... or
subjects, or to define the different sections of a single article.
And then displays an image that I cleaned up:
It also describes how to use the <article> tag (from same W3 link above):
<article> is related to <section>, but is distinctly different.
Whereas <se...
What is the difference between a User Control Library and a Custom Control Library?
I am just coming up to speed on WPF and would like to create a reusable WPF control.
2 Answers
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In Jinja2, how do you test if a variable is undefined?
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{% if variable is defined and variable %} would also check for emptiness
– Vivek
May 17 '19 at 9:00
add a comment
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When to choose checked and unchecked exceptions
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Checked Exceptions are great, so long as you understand when they should be used. The Java core API fails to follow these rules for SQLException (and sometimes for IOException) which is why they are so terrible.
Checked Exceptions should be used for predictable, but unprevent...