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eval command in Bash and its typical uses
...1}. So eval echo \${$n} runs the command echo ${1}.
Note that most of the time, you must use double quotes around variable substitutions and command substitutions (i.e. anytime there's a $): "$foo", "$(foo)". Always put double quotes around variable and command substitutions, unless you know you ne...
How can I configure the font size for the tree item in the package explorer in Eclipse?
...ern versions of eclipse. It must have been a great answer at some point in time, but this site is not a good fit for evolving Q&A for new versions of software. See other answers below, they vary a bit by OS flavor!
– matanster
Feb 3 '15 at 16:17
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What do people find difficult about C pointers? [closed]
...r));
In six months, when I have to maintain this code, I will spend more time trying to figure out what all this means than rewriting from the ground up.
(yeah, probably got that syntax wrong -- it's been a while since I've done anything in C. I kinda miss it, but then I'm a bit of a massochist)
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Return a value if no rows are found in Microsoft tSQL
Using a Microsoft version of SQL, here's my simple query. If I query a record that doesn't exist then I will get nothing returned. I'd prefer that false (0) is returned in that scenario. Looking for the simplest method to account for no records.
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How to check if a string starts with a specified string? [duplicate]
...here used to be a trivial reason some programmers did that for a period of time, but it's not necessary.) It's more readable and intuitive as "if (strpos($string2, 'http') === 0) ...
– orrd
Aug 20 '14 at 4:13
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Visual Studio Editor does not underline errors anymore
... Dude... I just figured this out. That's spooky as hell sometimes.
– Maxime Rouiller
Dec 18 '15 at 13:58
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Any way to break if statement in PHP?
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Don't worry about other users comments, I can understand you, SOMETIMES when developing this "fancy" things are required. If we can break an if, a lot of nested ifs won't be necessary, making the code much more clean and aesthetic.
This sample code illustrate that CERTAINS SITUATIONS where...
Convert HTML + CSS to PDF [closed]
...but that's OK
memory_limit = 1024M; # yes, one gigabyte; and
max_execution_time = 600; # yes, 10 minutes.
Now the astute reader may have noticed that my HTML file is smaller than 100k. The only reason I can guess as to why I hit this problem is that html2pdf does a conversion into xhtml as part o...
Why does the C# compiler not fault code where a static method calls an instance method?
...heck for static. But that means that the static check has to wait until runtime. Hence the observed behavior.
Late addition: Some background on why they chose to do things this funny order can be inferred from this blog post by Eric Lippert.
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What does %s mean in a python format string?
What does %s mean in Python? And what does the following bit of code do?
7 Answers
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