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Test if a variable is a list or tuple
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Go ahead and use isinstance if you need it. It is somewhat evil, as it excludes custom sequen...
Array slicing in Ruby: explanation for illogical behaviour (taken from Rubykoans.com)
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How to rethrow InnerException without losing stack trace in C#?
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What exactly do “IB” and “UB” mean?
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answered May 4 '10 at 15:39
ThomasThomas
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Why can I access private variables in the copy constructor?
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answered Jul 18 '13 at 10:40
Tony DelroyTony Delroy
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How to use Boost in Visual Studio 2010
...d already, I'm going to expand on it more specifically for Visual Studio 2010 as requested, and include information on compiling in the various optional components which requires external libraries.
If you are using headers only libraries, then all you need to do is to unarchive the boost download ...
Truncating floats in Python
...point format into the sequence of bits (assuming a 64-bit float)
0011111111010011001100110011001100110011001100110011001100110011
This is the closest value to 0.3 that can accurately be represented as an IEEE float. But if you write 0.29999999999999998 in a Python program, the compiler translates...
How to handle multiple heterogeneous inputs with Logstash?
...aaa" in [tags] {
elasticsearch {
hosts => ["192.168.100.211:9200"]
index => "aaa"
document_type => "aaa-%{+YYYY.MM.dd}"
}
}
if "bbb" in [tags] {
elasticsearch {
hosts => ["192.168.100.211:9200"]
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std::vector performance regression when enabling C++11
...ack(Item());)
$ g++ -std=c++11 -O3 -flto regr.cpp && perf stat -r 10 ./a.out
Performance counter stats for './a.out' (10 runs):
35.426793 task-clock # 0.986 CPUs utilized ( +- 1.75% )
4 context-switches # 0.116 K/sec ...
Loop through an array in JavaScript
...e iterating them, for example:
array.filter(item => item.condition < 10)
.forEach(item => console.log(item))
Keep in mind if you are iterating an array to build another array from it, you should use map, I've seen this anti-pattern so many times.
Anti-pattern:
const numbers = [1,2,3,4...