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How to profile methods in Scala?
...ns
Elapsed time: 1690250ns
res0: scala.math.BigDecimal = 1.456
I have no idea why that printed stuff out 5 times
Update as of 2.12.2:
scala> :pa
// Entering paste mode (ctrl-D to finish)
package wrappers { object wrap { def apply[A](a: => A): A = { println("running...") ; a } }}
// Exiti...
Android REST client, Sample?
Even if this thread has accepted answer, feel free to propose other ideas, you do use or like
7 Answers
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How to line-break from css, without using ?
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Brilliant idea. Note the " – do not use simple quotes ' because you want to allow the \a to get parsed as a special character.
– Hafenkranich
Aug 11 '16 at 17:17
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Assignment in an if statement
... then name is the dog's name (if it is a dog), otherwise null.
*I have no idea if this is performant. It has never come up as a bottleneck in profiling.
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Why java.util.Optional is not Serializable, how to serialize the object with such fields
...gt;> or Map<Key,Optional<Value>>. This too is usually a bad idea. It's often better to replace these usages of Optional with Null-Object values (not actual null references), or simply to omit these entries from the collection entirely.
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Current time in microseconds in java
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The idea is good, but you must re-synchronize every now and then. The system time (currentTime) and the CPU clock (nanoTime) are NOT in sync, since they are often based on different hardware clocks. Additionally, the time server ...
How to generate the “create table” sql statement for an existing table in postgreSQL
...n "my_table" does not exist. Guess is a psql version dependent issue. Any ideas?
– Jason Morgan
Sep 7 '17 at 10:42
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Remove empty space before cells in UITableView
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this is really really strange. This solved the issue. Any idea when this happens?
– MiQUEL
Oct 27 '13 at 1:17
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Is it good style to explicitly return in Ruby?
...distinguish between functions and procedures:
Copy Jörg W Mittag's nice idea of writing functional blocks with curly braces, and procedural blocks with do/end
When you invoke procedures, use (), whereas when you invoke functions, don't
Note that Jörg W Mittag actually advocated the other way a...
ExecJS::RuntimeError on Windows trying to follow rubytutorial
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installing node is a good idea (and probably simplest), but is still a bit of an overkill considering its size
– prusswan
Aug 27 '15 at 10:38
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