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Are loops really faster in reverse?
I've heard this quite a few times. Are JavaScript loops really faster when counting backward? If so, why? I've seen a few test suite examples showing that reversed loops are quicker, but I can't find any explanation as to why!
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C# 'is' operator performance
I have a program that requires fast performance. Within one of its inner loops, I need to test the type of an object to see whether it inherits from a certain interface.
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Can a for loop increment/decrement by more than one?
Are there other ways to increment a for loop in Javascript besides i++ and ++i ? For example, I want to increment by 3 instead of one.
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What is the most efficient way of finding all the factors of a number in Python?
Can someone explain to me an efficient way of finding all the factors of a number in Python (2.7)?
22 Answers
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JavaScript closure inside loops – simple practical example
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Given an array of numbers, return array of products of all other numbers (no division)
I was asked this question in a job interview, and I'd like to know how others would solve it. I'm most comfortable with Java, but solutions in other languages are welcome.
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Check if at least two out of three booleans are true
An interviewer recently asked me this question: given three boolean variables, a, b, and c, return true if at least two out of the three are true.
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Undefined behavior and sequence points
What are "sequence points"?
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How to use php serialize() and unserialize()
My problem is very basic.
10 Answers
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Fixing JavaScript Array functions in Internet Explorer (indexOf, forEach, etc.) [closed]
As detailed elsewhere , and otherwise apparently well-known, Internet Explorer (definitely version 7, and in some instances, version 8) do not implement key functions, in particular on Array (such as forEach , indexOf , etc).
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