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Have a reloadData for a UITableView animate when changing
...you have more than 0 sections!)
Another thing to note is that you may run into a NSInternalInconsistencyException if you attempt to simultaneously update your data source with this code. If this is the case, you can use logic similar to this:
int sectionNumber = 0; //Note that your section may be...
How can strings be concatenated?
...
This method also allows you to 'concat' an int to string, which isn't possible directly with + (requires wrapping the int in a str())
– aland
Dec 8 '18 at 16:04
...
quick random row selection in Postgres
... postgres that contains couple of millions of rows. I have checked on the internet and I found the following
7 Answers
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PostgreSQL LIKE query performance variations
...out creating an index on the lowercase value of the field. That way I can convert the query text to lowercase on the backend before querying.
– Jason
Oct 14 '09 at 15:03
add ...
How to measure elapsed time in Python?
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Is there a nice way of converting resulting execturion time in seconds to something like HH:MM::SS?
– Danijel
Feb 4 '16 at 10:05
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final keyword in method parameters [duplicate]
..., the caller of the function never loses its reference, and continues to point to the same object.
– Armand
Feb 20 '14 at 18:19
14
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How to send SMS in Java
... if (portId.getName().equals(comPort)) {
System.out.println("Got PortName");
return true;
}
}
}
return false;
}
public void checkStatus() {
send("AT+CREG?\r\n");
}
public void send(String cmd) {
...
Action bar navigation modes are deprecated in Android L
...eader. However, in landscape mode the ActionBar tabs automatically move up into the action bar itself, freeing important screen area. Anybody know a clean way to manage this with the support library?
– ehartwell
Jul 8 '14 at 3:23
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How can I use map and receive an index as well in Scala?
..., "little", "lamb")
scala> ls.zipWithIndex.foreach{ case (e, i) => println(i+" "+e) }
0 Mary
1 had
2 a
3 little
4 lamb
From: http://www.artima.com/forums/flat.jsp?forum=283&thread=243570
You also have variations like:
for((e,i) <- List("Mary", "had", "a", "little", "lamb").zipWithI...
how to create a Java Date object of midnight today and midnight tomorrow?
... If you did something like System.out.print(date), the system converted the date instance into the system time zone (CDT). 7pm in CDT is midnight in GMT. If you need a midnight in a selected time zone, you have to add this time zone's offset, taking DST into account.
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