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Best way to merge two maps and sum the values of same key?
...p is just a set of values, together with an operator that takes two values from that set, and produces another value from that set. So integers under addition are a semigroup, for example - the + operator combines two ints to make another int.
You can also define a semigroup over the set of "all m...
Can git operate in “silent mode”?
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@HansKrisian yes, bash brought interactive features from csh and the scripting from sh together. Quoting from the same howto: "Bash is an sh-compatible shell that incorporates useful features from the Korn shell (ksh) and C shell (csh)".
– hd1
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Align button at the bottom of div using CSS
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When using position:absolute; the element will be positioned absolutely from the first positioned parent div, if it can't find one it will position absolutely from the window so you will need to make sure the content div is positioned.
To make the content div positioned, all position values that...
Least common multiple for 3 or more numbers
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Some Python code that doesn't require a function for gcd:
from sys import argv
def lcm(x,y):
tmp=x
while (tmp%y)!=0:
tmp+=x
return tmp
def lcmm(*args):
return reduce(lcm,args)
args=map(int,argv[1:])
print lcmm(*args)
Here's what it looks like in the ter...
How to exit a function in bash
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Use:
return [n]
From help return
return: return [n]
Return from a shell function.
Causes a function or sourced script to exit with the return value
specified by N. If N is omitted, the return status is that of the
last command executed wi...
How to launch html using Chrome at “--allow-file-access-from-files” mode?
... then, on your cmd, try :
> "C:\PathTo\Chrome.exe" --allow-file-access-from-files
Source
EDIT :
As I see on your question, don't forget that Windows is a little bit similar to Unix, so when you type "chrome ...", cmd will search for Chrome in the PATH, but in general the Chrome folder isn't o...
What makes a keychain item unique (in iOS)?
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The primary keys are as follows (derived from open source files from Apple, see Schema.m4, KeySchema.m4 and SecItem.cpp):
For a keychain item of class kSecClassGenericPassword, the primary key is the combination of
kSecAttrAccount and kSecAttrService.
For a keych...
memory_get_peak_usage() with “real usage”
... to true the PHP DOCS say it will get the real size of memory allocated from system. If it's false it will get the memory reported by emalloc()
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Class with Object as a parameter
...as
class Foo(Base1, Base2):
Foo is being declared as a class inheriting from base classes Base1 and Base2.
object is the mother of all classes in Python. It is a new-style class, so inheriting from object makes Table a new-style class.
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Resolving a 'both added' merge conflict in git?
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If you use git rm git will remove all versions of that path from the index so your resolve action will leave you without either version.
You can use git checkout --ours src/MyFile.cs to choose the version from the branch onto which you are rebasing or git checkout --theirs src/MyFile...