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How to compare objects by multiple fields
...; then the method is compareTo(Person p).. it seems that this answer was mixed up with Comparator's compare<T o1, T o2> method
– Mike
Dec 14 '12 at 12:59
...
What is thread safe or non-thread safe in PHP?
...currency models (using Asynchronous sockets and I/O), as well as ones that mix two or even three models together. For the purpose of answering this question, we are only concerned with the two models above, and taking Apache HTTP server as an example.
Needed background on how PHP "integrates" with ...
Group by multiple columns in dplyr, using string vector input
...ike s_group_by, s_mutate, s_filter, etc that use string arguments. You can mix them with the normal dplyr functions. For example
cols = c("cyl","gear")
mtcars %.%
s_group_by(cols) %.%
s_summarise("avdisp=mean(disp), max(disp)") %.%
arrange(avdisp)
...
UITableView Cell selected Color?
...cell other than the default [blue color] values for highlighting the selection of cell.
I use this code but nothing happens:
...
Multi-line string with extra space (preserved indentation)
...ree\n"
printf "%b" "$text" > filename
Another solution is achieved by mixing printf and sed.
if something
then
printf '%s' '
this is line one
this is line two
this is line three
' | sed '1d;$d;s/^ //g'
fi
It is not easy to refactor code formatted like this as you hard...
How to make a SPA SEO crawlable?
...orking on how to make a SPA crawlable by google based on google's instructions . Even though there are quite a few general explanations I couldn't find anywhere a more thorough step-by-step tutorial with actual examples. After having finished this I would like to share my solution so that others m...
What's the difference between a mock & stub?
...ur SUT handles receiving messages, mocks test how your SUT sends messages. Mixing up the 2 is likely to lead to bad OO design.
– dave1010
Aug 24 '15 at 7:41
8
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What does the 'b' character do in front of a string literal?
....
>>> b'\xE2\x82\xAC'.decode('UTF-8')
'€'
But you can't freely mix the two types.
>>> b'\xEF\xBB\xBF' + 'Text with a UTF-8 BOM'
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: can't concat bytes to str
The b'...' notation is somew...
Entity Framework: table without primary key
...
@MahmoudMoravej: First off, don't mix up the ideas of clustering indexes and primary keys. They aren't the same thing. You can have very highly performant inserts on tables with clustered indicies on IDENTITY columns. If you run into issues with index main...
Does Java have a path joining method? [duplicate]
...
This concerns Java versions 7 and earlier.
To quote a good answer to the same question:
If you want it back as a string later, you can call getPath(). Indeed, if you really wanted to mimic Path.Combine, you could just write something like:
publi...