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Array include any value from another array?
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272
(cheeses & foods).empty?
As Marc-André Lafortune said in comments, & works in linea...
GDB corrupted stack frame - How to debug?
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Those bogus adresses (0x00000002 and the like) are actually PC values, not SP values. Now, when you get this kind of SEGV, with a bogus (very small) PC address, 99% of the time it's due to calling through a bogus function pointer. Note that virtual calls...
Flags to enable thorough and verbose g++ warnings
...ast-align -Wcast-qual -Wctor-dtor-privacy -Wdisabled-optimization -Wformat=2 -Winit-self -Wlogical-op -Wmissing-declarations -Wmissing-include-dirs -Wnoexcept -Wold-style-cast -Woverloaded-virtual -Wredundant-decls -Wshadow -Wsign-conversion -Wsign-promo -Wstrict-null-sentinel -Wstrict-overflow=5 -W...
How do I iterate through each element in an n-dimensional matrix in MATLAB?
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92
You can use linear indexing to access each element.
for idx = 1:numel(array)
element = arra...
How should I validate an e-mail address?
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32 Answers
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SyntaxError: Use of const in strict mode
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287
The const and let are part of ECMAScript 2015 (a.k.a. ES6 and Harmony), and was not enabled by...
Removing numbers from string [closed]
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Would this work for your situation?
>>> s = '12abcd405'
>>> result = ''.join([i for i in s if not i.isdigit()])
>>> result
'abcd'
This makes use of a list comprehension, and what is happening here is similar to this structure:
no_digits = []
# Iterat...
Why use AJAX when WebSockets is available?
...utilizing Node server and WebSockets. I found using WebSockets provided a 624% increase in the number of requests per second my application could process.
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how to emulate “insert ignore” and “on duplicate key update” (sql merge) with postgresql?
...postgresql.org/docs/9.3/static/plpgsql-control-structures.html, example 40-2 right at the bottom.
That's usually the easiest way. You can do some magic with rules, but it's likely going to be a lot messier. I'd recommend the wrap-in-function approach over that any day.
This works for single row, o...