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Java 8: performance of Streams vs Collections
...from the middle of the list using iterator.
Stop writing benchmarking code by hand, use JMH.
Proper benchmarks:
@OutputTimeUnit(TimeUnit.NANOSECONDS)
@BenchmarkMode(Mode.AverageTime)
@OperationsPerInvocation(StreamVsVanilla.N)
public class StreamVsVanilla {
public static final int N = 10000;
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How do I use boolean variables in Perl?
... will stringify to "XXX" but boolifies to false.
– tobyink
Feb 25 '14 at 15:17
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@tobyink, The co...
JSON Stringify changes time of date because of UTC
My date objects in JavaScript are always represented by UTC +2 because of where I am located. Hence like this
16 Answers
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How can I perform a reverse string search in Excel without using VBA?
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=TRIM(LEFT(SUBSTITUTE(A1, " ", REPT(" ", 100)), 100))
Also, replace A1 by the cell holding the text.
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Github: readonly access to a private repo
... servers to pull the latest version from github. I am currently doing this by generating keypairs on every deployment server and adding the public key to the github project as 'Deployment key'.
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validation custom message for rails 3
... @Mayumi - You can remove the attribute name from the message by writing a manual validation and adding the error to :base, for example errors.add(:base, "Story title is required)
– Marco Prins
Nov 9 '15 at 14:45
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Getting the return value of Javascript code in Selenium
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if the variable is not defined by javascript, what would be the return value?Does it throw an exception or simply an empty string ?
– Alex
Sep 8 '15 at 0:01
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How to quit android application programmatically
I Found some codes for quit an Android application programatically. By calling any one of the following code in onDestroy() will it quit application entirely?
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Change one value based on another value in pandas
...we are adding a new description column as a concatenation of other columns by using the + operation which is overridden for series. Fancy string formatting, f-strings etc won't work here since the + applies to scalars and not 'primitive' values:
df['description'] = 'A ' + df.age.astype(str) + ' yea...
What is the purpose and uniqueness SHTML?
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<!--#include virtual="top.shtml" -->
It's been largely superseded by other mechanisms, such as PHP includes, but some hosting packages still support it and nothing else.
You can read more in this Wikipedia article.
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