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Difference of keywords 'typename' and 'class' in templates?
...
typename and class are interchangeable in the basic case of specifying a template:
template<class T>
class Foo
{
};
and
template<typename T>
class Foo
{
};
are equivalent.
Having said that, there are specific cases ...
Orchestration vs. Choreography
What are the differences between service orchestration and service choreography from an intra-organization point of view.
1...
How to count the number of files in a directory using Python
...fficient than using glob.glob. To test if a filename is an ordinary file (and not a directory or other entity), use os.path.isfile():
import os, os.path
# simple version for working with CWD
print len([name for name in os.listdir('.') if os.path.isfile(name)])
# path joining version for other pa...
Merge development branch with master
I have two branches namely master and development in a GitHub Repository. I am doing all my development in development branch as shown.
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Render basic HTML view?
...ade
include plain.html
in views/plain.html
<!DOCTYPE html>
...
and app.js can still just render jade:
res.render(index)
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Cleanest way to toggle a boolean variable in Java?
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and it conforms to DRY :)
– Tetha
Oct 22 '08 at 6:21
6
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How to generate random number with the specific length in python
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To get a random 3-digit number:
from random import randint
randint(100, 999) # randint is inclusive at both ends
(assuming you really meant three digits, rather than "up to three digits".)
To use an arbitrary number of digits:
fr...
scopes with lambda and arguments in Rails 4 style?
...Ruby 1.9, the short lambda syntax does not allow a space between the arrow and a parameter (scope :find_lazy, ->(param)). In Ruby 2+, the space is allowed. More info here...
– furman87
Aug 22 '15 at 19:07
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Library not loaded: /usr/local/opt/readline/lib/libreadline.6.2.dylib
I just installed posgresql with homebrew and when I go on to type the command
22 Answers
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How to check a string for specific characters?
...ic than the above...
s.find('$')==-1 # not found
s.find('$')!=-1 # found
And so on for other characters.
... or
pattern = re.compile(r'\d\$,')
if pattern.findall(s):
print('Found')
else
print('Not found')
... or
chars = set('0123456789$,')
if any((c in chars) for c in s):
print('F...