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javascript check for not null
...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 for javascript 'truthiness' values: janosch.woschitz.org/javascript-equality-comparison
– Will Buck
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What does Java option -Xmx stand for? [duplicate]
...; set maximum Java heap size
-Xss<size> set java thread stack size
-Xprof output cpu profiling data
-Xfuture enable strictest checks, anticipating future default
-Xrs reduce use of OS signals by Java/VM (see documentation)
-Xch...
Python syntax for “if a or b or c but not all of them”
... do this in hardware, I would choose the second, here just choose the most readable (also taking in consideration the conditions you will be testing and their names). I picked the first.
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Memcache Vs. Memcached [duplicate]
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This naming convention is clearly being adhered to by memcache when you read the introduction to the memcache module (notice the distinction between memcache and memcached in this excerpt):
Memcache module provides handy
procedural and object oriented
interface to memcached, highly
effe...
start MySQL server from command line on Mac OS Lion
..../bin/mysqld_safe
if you are still having issues starting, a recommended read:
mysql5.58 unstart server in mac os 10.6.5
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Should I use window.navigate or document.location in JavaScript?
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document.location is a (deprecated but still present) read-only string property, replaced by document.url.
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How can I use “:” as an AWK field separator?
...he main loop rather than the BEGIN loop, it takes affect for the next line read in, since the current line has already been split.
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RVM is not a function, selecting rubies with 'rvm use …' will not work
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@AdityaPednekar So, sometimes reading the error/console message actually helps, RVM is not a function, selecting rubies with 'rvm use ...' will not work. You need to change your terminal emulator preferences to allow login shell. Sometimes it is requir...
Disable a Button
... I also get an error if I change (_ sender: ) to UIButton . The error reads: Value of type '(UIButton) -> ()' has no member 'isEnabled'
– user9470831
Feb 5 '19 at 4:25
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Opening Android Settings programmatically
... to open the settings into the new option: "Control which applications can read your notifications" (added in API 18)?
– Javi
Mar 5 '14 at 17:04
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