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Where does the “flatmap that s***” idiomatic expression in Scala come from?
... if/then/else code you would write with calls to flatMap (and other higher order functions).
This is especially true for Options (see http://tonymorris.github.io/blog/posts/scalaoption-cheat-sheet/)
But it applies to other monads as well (although I have to admit, I don't exactly understand the d...
Why is C so fast, and why aren't other languages as fast or faster? [closed]
...down to native machine code. Since those other languages tend to exist in order to obtain a higher level of abstraction than C, those extra statements required in C tend to be focused on adding safety, adding complexity, and providing error handling. Those are often good things, but they have a co...
When should I use the new keyword in C++?
... function returns, the following will happen:
First, b2 goes out of scope (order of destruction is always opposite of order of construction). But b2 is just a pointer, so nothing happens, the memory it occupies is simply freed. And importantly, the memory it points to (the bar instance on the heap) ...
How do you return the column names of a table?
...umns.id
where sysobjects.xtype = 'u'
and sysobjects.name = 'MyTableName'
order by syscolumns.name
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How do I expand the output display to see more columns of a pandas DataFrame?
...
In order to set no limits, None can be used (instead of 999, etc.).
– Eric O Lebigot
Sep 14 '17 at 19:27
5
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What specifically are wall-clock-time, user-cpu-time, and system-cpu-time in UNIX?
...u
Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Byte Order: Little Endian
CPU(s): 24
real or wall-clock
real 7m2.444s
On a system with 24 core processor, this cmd/process took 7+ mins to complete. That by utilizing the most possible parallelism wit...
Reference - What does this error mean in PHP?
...hat was automatically constructed)
Also make sure you don't have any Byte Order Marks in your code, for example when the encoding of the script is UTF-8 with BOM.
Related Questions:
Headers already sent by PHP
All PHP "Headers already sent" Questions on Stackoverflow
Byte Order Mark
What PHP Fun...
How to see the changes in a Git commit?
...COMMIT^!
or
git diff-tree -p COMMIT
With git show, you would need (in order to focus on diff alone) to do:
git show --color --pretty=format:%b $COMMIT
The COMMIT parameter is a commit-ish:
A commit object or an object that can be recursively dereferenced to a commit object. The following...
How do I export a project in the Android studio?
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Optional Methods in Java Interface
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In order to compile an implementing (non abstract) class for an interface - all methods must be implemented.
However, if we think of a method that its implementation is a simple exception throw as a 'non implemented' (like some...