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Private module methods in Ruby
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I think the best way (and mostly how existing libs are written) to do this is by creating a class within the module that deals with all the logic, and the module just provides a convenient method, e.g.
module GTranslate
class Translator
def...
How to extract text from a string using sed?
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That's why, isn't it? Replace whatever comes before and after the match with norhing, then print the whole line.
– tripleee
Jul 19 '12 at 21:01
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Validate uniqueness of multiple columns
Is there a rails-way way to validate that an actual record is unique and not just a column? For example, a friendship model / table should not be able to have multiple identical records like:
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css overflow - only 1 line of text
...d ... if there are more character to show because when length of line long and it goes out of written div.
– Moshii
Sep 29 '16 at 13:18
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Remove elements from collection while iterating
...201-63361-3")));
books.add(new Book(new ISBN("0-201-63361-4")));
Collect and Remove
The first technique consists in collecting all the objects that we want to delete (e.g. using an enhanced for loop) and after we finish iterating, we remove all found objects.
ISBN isbn = new ISBN("0-201-63361-2"...
How to call Android contacts list?
I'm making an Android app, and need to call the phone's contact list. I need to call the contacts list function, pick a contact, then return to my app with the contact's name. Here's the code I got on the internet, but it doesnt work.
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Android emulator doesn't take keyboard input - SDK tools rev 20
I've upgraded the SDK tools to revision 20 (from 18) and since the upgrade, the emulator doesn't seem to accept input from laptop's keyboard. But only using the emulator's own 'soft' keyboard (that appears when an input field is focused).
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How to start an application using android ADB tools?
How do I send an intent using Android's ADB tools?
11 Answers
11
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SQL Server SELECT LAST N Rows
...S OrderedDate,*
FROM Orders
) as ordlist
WHERE ordlist.EmployeeID = 5
AND ordlist.OrderedDate <= 5
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Implement touch using Python?
touch is a Unix utility that sets the modification and access times of files to the current time of day. If the file doesn't exist, it is created with default permissions.
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