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How can I check if an argument is defined when starting/calling a batch file?
...ples
save it as identifier.cmd
it can identify an unlimited arguments (normally you are limited to %1-%9), just remember to wrap the arguments with inverted-commas, or use 8.3 naming, or drag&drop them over (it automatically does either of above).
this allows you to run the following commands:...
Why are variables “i” and “j” used for counters?
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It comes ultimately from mathematics: the summation notation traditionally uses i for the first index, j for the second, and so on. Example (from http://en.wikipedia.org/wiki/Summation):
It's also used that way for collections of things, like if you have a bunch of variables x1, x2, ......
Segue to another storyboard?
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Yes, but you have to do it programmatically:
// Get the storyboard named secondStoryBoard from the main bundle:
UIStoryboard *secondStoryBoard = [UIStoryboard storyboardWithName:@"secondStoryBoard" bundle:nil];
// Load the initial view controller from the storyb...
Java - How to create new Entry (key, value)
...ectly to the javadoc. From the Java 6 version
Interface Map.Entry
All Known Implementing Classes:
AbstractMap.SimpleEntry, AbstractMap.SimpleImmutableEntry
Unfortunately the 1.5 version does not list any known implementing class that you can use, so you may have be stuck with i...
Navigation Drawer (Google+ vs. YouTube)
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Edit #3:
The Navigation Drawer pattern is officially described in the Android documentation!
Check out the following links:
Design docs can be found here.
Developer docs can be found here.
Edit #2:
Roman Nurik (an Android design engineer at Google) has confirmed t...
What is RemoteSystemsTempFiles in Eclipse?
...msTempFiles when searching for a resource (e.g. CTRL+SHIFT+R), you can manually show the Eclipse resource in the Project Explorer and remove it...
Project Explorer view > Customize View... > Filters > Uncheck "RSE Internal Projects" > OK > find it in the Project Explorer tree > e...
What did MongoDB not being ACID compliant before v4 really mean?
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Excellent information, generally an excellent answer with the exception of suggesting to use MySQL.
– Doug Molineux
Oct 23 '14 at 20:52
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Concatenating Files And Insert New Line In Between Files
...finalfile.txt does not exist before you run the above command.
If you are allowed to use awk you can do:
awk 'FNR==1{print ""}1' *.txt > finalfile.txt
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ssh “permissions are too open” error
... 400 is too low as that makes it non-writable by your own user. 600 is actually recommended as it allows owner read-write not just read.
– jfreak53
Jul 9 '13 at 23:55
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Get the current user, within an ApiController action, without passing the userID as a parameter
...s have shown that using static properties to access request context causes all kinds of architectural problems. It's convenient at first but it causes soooooo much pain long term.
– Darrel Miller
Aug 28 '18 at 13:44
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