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Best way to make Java's modulus behave like it should with negative numbers?
In java when you do
6 Answers
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Is there any kind of hash code function in JavaScript?
Basically, I'm trying to create an object of unique objects, a set. I had the brilliant idea of just using a JavaScript object with objects for the property names. Such as,
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How to find the sum of an array of numbers
Given an array [1, 2, 3, 4] , how can I find the sum of its elements? (In this case, the sum would be 10 .)
43 Answers
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Why there is no ConcurrentHashSet against ConcurrentHashMap
HashSet is based on HashMap.
9 Answers
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What is the difference between Numpy's array() and asarray() functions?
What is the difference between Numpy's array() and asarray() functions? When should you use one rather than the other? They seem to generate identical output for all the inputs I can think of.
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Performing Breadth First Search recursively
Let's say you wanted to implement a breadth-first search of a binary tree recursively . How would you go about it?
21 Answ...
What is the difference between atomic / volatile / synchronized?
How do atomic / volatile / synchronized work internally?
7 Answers
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Can you animate a height change on a UITableViewCell when selected?
I'm using a UITableView in my iPhone app, and I have a list of people that belong to a group. I would like it so that when the user clicks on a particular person (thus selecting the cell), the cell grows in height to display several UI controls for editing the properties of that person.
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Performance optimization strategies of last resort [closed]
There are plenty of performance questions on this site already, but it occurs to me that almost all are very problem-specific and fairly narrow. And almost all repeat the advice to avoid premature optimization.
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Why is using “for…in” for array iteration a bad idea?
I've been told not to use for...in with arrays in JavaScript. Why not?
27 Answers
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