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Generate a random alphanumeric string in Cocoa
...omString = [NSMutableString stringWithCapacity: len];
for (int i=0; i<len; i++) {
[randomString appendFormat: @"%C", [letters characterAtIndex: arc4random_uniform([letters length])]];
}
return randomString;
}
...
Django: multiple models in one template using forms [closed]
...d solution to the problem you described. I always used them to represent multiple instances of a model. E.g. you have a applicant form and you want 3 references to you make a formset that has 3 instances of the Reference model.
– Jason Christa
Feb 25 '09 at 23:...
Cross-platform way of getting temp directory in Python
...
For me, OSX is putting it in /var/folders/<garbage/here> instead of /tmp because that is how $TMPDIR is set. See here.
– Rick Smith
Jan 19 '17 at 16:49
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Singleton by Jon Skeet clarification
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@JonSkeet Any reason not to use Lazy<T> so that you don't have to declare a static constructor for the magic BeforeFieldInit side-effect?
– Ed T
Jun 1 '15 at 19:03
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How to print matched regex pattern using awk?
...awk to search for pattern using //, then print out the line, which by default is called a record, denoted by $0. At least read up the documentation.
If you only want to get print out the matched word.
awk '{for(i=1;i<=NF;i++){ if($i=="yyy"){print $i} } }' file
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how to check redis instance version?
... a Jenkins pipeline when testing a Redis container), while redis-cli info <subinfo> will succeed only in a complete working setup, with redis-server running and responsive and with open network connectivity between redis-cli and redis-server
– mirekphd
De...
Idiomatic way to convert an InputStream to a String in Scala
...cala >= 2.11
scala.io.Source.fromInputStream(is).mkString
For Scala < 2.11:
scala.io.Source.fromInputStream(is).getLines().mkString("\n")
does pretty much the same thing. Not sure why you want to get lines and then glue them all back together, though. If you can assume the stream's non...
Best way to hide a window from the Alt-Tab program switcher?
... doesn't guarantee (or necessarily even affect) it being hidden from the Alt + ↹Tab dialog. I've seen invisible windows show up in Alt + ↹Tab , and I'm just wondering what is the best way to guarantee a window will never appear (visible or not) in the Alt + ↹Tab dialog.
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Why can't I assign a *Struct to an *Interface?
... sb.Events = make([]interface{}, events.Len())
for i := 0; i < events.Len(); i++ {
sb.Events[i] = events.Index(i).Interface()
}
}
}
return sb
}
As you can see above the Storyboard.go is consuming just Events []interface{} but in-fact Im ...
Remove the bottom divider of an android ListView
...note that android:footerDividersEnabled is kept for back-compatibility):
<ListView
android:id="@android:id/list"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="@dimen/activity_horizontal_margin"
android:divider="@color/divider"
a...