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What does “|=” mean? (pipe equal operator)
I tried searching using Google Search and Stack Overflow, but it didn't show up any results. I have seen this in opensource library code:
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Regex: Specify “space or start of string” and “space or end of string”
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You can use any of the following:
\b #A word break and will work for both spaces and end of lines.
(^|\s) #the | means or. () is a capturing group.
/\b(stackoverflow)\b/
Also, if you don't want to include the space in your match, you can use lookbeh...
How to implement a good __hash__ function in python [duplicate]
...hen implementing a class with multiple properties (like in the toy example below), what is the best way to handle hashing?
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How do you represent a graph in Haskell?
It's easy enough to represent a tree or list in haskell using algebraic data types. But how would you go about typographically representing a graph? It seems that you need to have pointers. I'm guessing you could have something like
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Remove CSS class from element with JavaScript (no jQuery) [duplicate]
...ive me an answer with jQuery as I can't use it, and I don't know anything about it.
13 Answers
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Min/Max of dates in an array?
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Andrew D.Andrew D.
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Benefits of using the conditional ?: (ternary) operator
What are the benefits and drawbacks of the ?: operator as opposed to the standard if-else statement. The obvious ones being:
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How do I check if a string contains a specific word?
...e') !== false) {
echo 'true';
}
Note that the use of !== false is deliberate (neither != false nor === true will return the desired result); strpos() returns either the offset at which the needle string begins in the haystack string, or the boolean false if the needle isn't found. Since 0 is a ...
How to view file history in Git?
With Subversion I could use TortoiseSVN to view the history/log of a file.
10 Answers
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When to use reinterpret_cast?
I am little confused with the applicability of reinterpret_cast vs static_cast . From what I have read the general rules are to use static cast when the types can be interpreted at compile time hence the word static . This is the cast the C++ compiler uses internally for implicit casts also.
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