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What is the difference between is_a and instanceof?
...recated at the exact same time as the operator was introduced it became impossible to write code for both PHP 4 and 5 without throwing an E_STRICT around. You can't even do if (version_compare(PHP_VERSION, 5) >= 0) { /* use instanceof */ } else { /* use is_a */ } because it would still cause a sy...
How to use gradle zip in local system without downloading when using gradle-wrapper
...s are normal again. Also a good trick if you have metered bandwidth I suppose.
– reverend
Oct 5 '16 at 15:33
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show 5 more comments
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Truncate all tables in a MySQL database in one command?
...this solution requires only DB access and not SSH access. In addition it's OS-independent.
– mastazi
Mar 29 '17 at 23:43
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Ubuntu rails install fails on zlib
... 8.10 as my dev box; it's my first serious foray into Linux as a daily-use OS, and I'm having a hard time getting Rails going. I have followed a number of tutorials which all seem to work fine, but when I try and use gem install or gem update on anything, I get an error that looks like this:
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Does a favicon have to be 32x32 or 16x16?
...ble effect so better stick to 32x32 as the smallest baseline.
For IE, Microsoft recommends 16x16, 32x32 and 48x48 packed in the favicon.ico file.
For iOS, Apple recommends specific file names and resolutions, at most 180x180 for latest devices running iOS 8.
Android Chrome primarily uses a manifest...
How does the ARM architecture differ from x86? [closed]
...SC (Complex Instruction Set Computing) one.
The core difference between those in this aspect is that ARM instructions operate only on registers with a few instructions for loading and saving data from / to memory while x86 can operate directly on memory as well. Up until v8 ARM was a native 32 bit ...
How to remove focus around buttons on click
...g the button focus style worked for me. This problem may be specific to MacOS with Chrome.
.btn:focus {
outline: none;
box-shadow: none;
}
Note though that this has implications for accessibility and isn't advised until you have a good consistent focus state for your buttons and inputs. As pe...
Cython: “fatal error: numpy/arrayobject.h: No such file or directory”
... I tried your idea, but now i get this crazy error that is too long to post here, but it starts with warning: untitled.pyx:8:49: Buffer unpacking not optimized away.
– Noob Saibot
Feb 2 '13 at 2:32
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How do you use String.substringWithRange? (or, how do Ranges work in Swift?)
...er here? Calling advance means we have to iterate the whole way through a possibly long string. But forming an NSRange and using NSString explicitly is dangerous? What's left?
– matt
Nov 18 '14 at 18:45
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How to create a backup of a single table in a postgres database?
... there a way to create a backup of a single table within a database using postgres? And how? Does this also work with the pg_dump command?
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