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How can I output leading zeros in Ruby?
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Use String#next as the counter.
>> n = "000"
>> 3.times { puts "file_#{n.next!}" }
file_001
file_002
file_003
next is relatively 'clever', meaning you can even go for
>> n = "file_000"
>> 3.times { puts n.next! }
file_001
file_002
file_003
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How do iOS Push Notifications work?
...he notification from notification center and launches the app. During this time you can perform the processes that you wish to do.
– Karan Alangat
May 16 '17 at 9:17
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SQL Inner-join with 3 tables?
... halls you could do it this way. You just join on your Hall table multiple times for each room pref id:
SELECT s.StudentID
, s.FName
, s.LName
, s.Gender
, s.BirthDate
, s.Email
, r.HallPref1
, h1.hallName as Pref1HallName
, r.HallPref2
, h2.hallName as Pref...
Where does the “flatmap that s***” idiomatic expression in Scala come from?
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I personally use the list monad sometimes to deal with combinations.
– Dan Burton
Dec 20 '11 at 1:56
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Can I implement an autonomous `self` member type in C++?
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I used that solution a couple of times, and it has one BAD thing: when later deriving from Foo, you have to either: (1) propagate the T upwards to the leaf-descendant, or (2) remember to inherit from SelfT many times, or (3) accept that all children thing to...
Why does a RegExp with global flag give wrong results?
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You are using a single RegExp object and executing it multiple times. On each successive execution it continues on from the last match index.
You need to "reset" the regex to start from the beginning before each execution:
result.push(re.test('Foo Bar'));
re.lastIndex = 0;
result.push(...
Convert LocalDate to LocalDateTime or java.sql.Timestamp
I am using JodaTime 1.6.2.
7 Answers
7
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In Python, how to display current time in readable format
How can I display the current time as:
6 Answers
6
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How to bind inverse boolean properties in WPF?
...o it twice, and then automate. In doubt, I would use this answer the first time it's needed in a project, and then if things grow, I'd use the accepted answer. But having the converter snippet pre-made might make it way less difficult to use.
– heltonbiker
Feb ...
Will using 'var' affect performance?
...sumptions about the type inference. This could cause elusive/edge case runtime errors if the value doesn't fit. For that reason, it may still be a good idea to be explicit when the value doesn't have an explicit type. So for example, var x = new List<List<Dictionary<int, string>()>...