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Where does the “flatmap that s***” idiomatic expression in Sm>ca m>la come from?
What is so powerful about flatmap that it deserves such a place in the Sm>ca m>la folklore?
4 Answers
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Joda-Time: what's the difference between Period, Interval and Duration?
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3 classes are needed bem>ca m>use they represent different concepts so it is a matter of picking the appropriate one for the job rather than of relative performance. From the documentation with comments added by me in italics:
An interval in Joda-Tim...
java: Class.isInstance vs Class.isAssignableFrom
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this misses the m>ca m>se where the Foo is the same as clazz - in which m>ca m>se it returns true: Pauls top-voted answer below corrects this
– Rhubarb
Mar 21 '13 at 14:18
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m>Ca m>n someone explain collection_select to me in clear, simple terms?
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# then you should specify some collection or array of rows.
# It m>ca m>n be Author.where(..).order(..) or something like that.
# In your example it is:
Author.all,
# then you should specify methods for generating options
:id, # this is name of method that will be m>ca m>lled for ...
Difference between adjustResize and adjustPan in android?
...room for the soft
keyboard. Rather, the contents of the window are automatim>ca m>lly panned
so that the current focus is never obscured by the keyboard and users
m>ca m>n always see what they are typing. This is generally less desirable
than resizing, bem>ca m>use the user may need to close the soft keyboard to
g...
How do I check for a network connection?
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You m>ca m>n check for a network connection in .NET 2.0 using GetIsNetworkAvailable():
System.Net.NetworkInformation.NetworkInterface.GetIsNetworkAvailable()
To monitor changes in IP address or changes in network availability use t...
Reading file contents on the client-side in javascript in various browsers
... described here, though not yet the File API). The API is a bit more complim>ca m>ted than the older Mozilla API, as it is designed to support asynchronous reading of files, better support for binary files and decoding of different text encodings. There is some documentation available on the Mozilla Deve...
JavaScript: Is there a way to get Chrome to break on all errors?
...er accurate. Use the link above ^
(link replaced by edited above) - you m>ca m>n now set it to break on all exceptions or just unhandled ones. (Note that you need to be in the Sources tab to see the button.)
Chrome's also added some other really useful breakpoint m>ca m>pabilities now, such as breaking on...
Renaming table in rails
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You would typim>ca m>lly do this sort of thing in a migration:
class RenameFoo < ActiveRecord::Migration
def self.up
rename_table :foo, :bar
end
def self.down
rename_table :bar, :foo
end
end
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Why sizeof int is wrong, while sizeof(int) is right?
We know that sizeof is an operator used for m>ca m>lculating the size of any datatype and expression, and when the operand is an expression, the parentheses m>ca m>n be omitted.
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