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Finding out whether a string is numeric or not
...return 'YES' for that string, per the documentation, having found "a valid integer representation". Furthermore, it did exactly that in a test on iOS 4.3.2. However, NSNumberFormatter did return nil.
– Tommy
May 23 '11 at 10:56
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What does this symbol mean in JavaScript?
...This is also a Community Wiki, so everyone is invited to participate in maintaining this list.
1 Answer
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Modify alpha opacity of LESS variable
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Thanks! I've been getting tired of converting everything to RGBA!
– BillyNair
Jun 19 '13 at 1:47
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Display HTML snippets in HTML
...+ with extension 'TextFX'. Mark the text, go to menu >TextFX >TextFX Convert >Encode HTML (&<>") → Done.
– Kai Noack
Jan 13 '13 at 18:07
2
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Select top 10 records for each category
... This works, but be aware that rank() is likely to be turned into a full table sort by the query planner if there isn't an index who's first key is the RankCriteria. In this case you may get better mileage selecting the distinct sections and cross applying to pick out the top 10 ordere...
Get file name and extension in Ruby
I'm working on a program to download a video from YouTube, convert it to MP3 and create a directory structure for the files.
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Printing tuple with string formatting in Python
So, i have this problem.
I got tuple (1,2,3) which i should print with string formatting.
eg.
14 Answers
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Android: Remove all the previous activities from the back stack
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The solution proposed here worked for me:
Java
Intent i = new Intent(OldActivity.this, NewActivity.class);
// set the new task and clear flags
i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
startActivity(i);
Kotlin
val i = Intent(this, New...
What's a 3D doing in this HTML?
... should use =, not =3D). :-) If your email software needs to use QP, it'll convert automatically.
– Chris Jester-Young
Oct 25 '10 at 15:48
52
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How do you make a deep copy of an object?
... final or can't be modified, extend the class and implement serializable.
Convert your class to a stream of bytes:
ByteArrayOutputStream bos = new ByteArrayOutputStream();
ObjectOutputStream oos = new ObjectOutputStream(bos);
oos.writeObject(object);
oos.flush();
oos.close();
bos.close();
byte[] b...