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Is gcc 4.8 or earlier buggy about regular expressions?
...ng to use std::regex in a C++11 piece of code, but it appears that the support is a bit buggy. An example:
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When should we call System.exit in Java
In Java, What is the difference with or without System.exit(0) in following code?
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Regex to test if string begins with http:// or https://
...hich will check the start of a string, and if it contains either http:// or https:// it should match it.
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For-each over an array in JavaScript
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TL;DR
Don't use for-in unless you use it with safeguards or are at least aware of why it might bite you.
Your best bets are usually
a for-of loop (ES2015+ only),
Array#forEach (spec | MDN) (or its relatives some and such) (ES5+ only),
a sim...
How can I quantify difference between two images?
... and calculate an element-wise (pixel-by-pixel) difference. Calculate the norm of the difference.
Option 2: Load both images. Calculate some feature vector for each of them (like a histogram). Calculate distance between feature vectors rather than images.
However, there are some decisions to make ...
How to use double or single brackets, parentheses, curly braces
...eses, curly braces in Bash, as well as the difference between their double or single forms. Is there a clear explanation?
7...
How do I pass a method as a parameter in Python
...em around the way you do variables. In fact, you can think about a method (or function) as a variable whose value is the actual callable code object.
Since you asked about methods, I'm using methods in the following examples, but note that everything below applies identically to functions (except wi...
RegEx: Smallest possible match or nongreedy match
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For a regular expression like .* or .+, append a question mark (.*? or .+?) to match as few characters as possible. To optionally match a section (?:blah)? but without matching unless absolutely necessary, use something like (...
How to return a part of an array in Ruby?
...very similar array-slicing syntax to Python. Here is the ri documentation for the array index method:
--------------------------------------------------------------- Array#[]
array[index] -> obj or nil
array[start, length] -> an_array or nil
array[ran...
What is monkey patching?
I am trying to understand, what is monkey patching or a monkey patch?
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