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What are the lesser known but useful data structures?
...ficed. Regular strings and arrays prepends were just far too expensive for what we needed to do, and reversing everthing was out of the question.
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edited Feb 19 '09 at 19...
Different between parseInt() and valueOf() in java?
...s eyesore:
Integer k = Integer.valueOf(Integer.parseInt("123"))
Now, if what you want is the object and not the primitive, then using valueOf(String) may be more attractive than making a new object out of parseInt(String) because the former is consistently present across Integer, Long, Double, et...
How to get the function name from within that function?
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What's the point in myFunction.name if you type the function name? defeats the purpose of magic variables.
– adi518
Mar 23 '18 at 23:55
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Single vs double quotes in JSON
...argument, or you should use this. Globally replacing "'" is a disaster, as what if the incoming data is: { 'a' : 'this "string" really isn\'t!!!!' }
– Mark Gerolimatos
Dec 28 '15 at 22:21
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Converting from longitude\latitude to Cartesian coordinates
... often about trade offs, so it all depends on the accuracy you require for what you are doing. For example, the result calculated from "Manhattan Distance Formula" versus the result from the "Distance Formula" can be better for certain situations as it is computationally less expensive. Think "wh...
What happens to an open file handle on Linux if the pointed file gets moved or deleted
What happens to an open file handle on Linux if the pointed file meanwhile gets:
7 Answers
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What is the “right” way to iterate through an array in Ruby?
... falls out extremely neatly and concisely.
As for the original question, "What is the “right” way to iterate through an array in Ruby?", well, I think the core way (i.e. without powerful syntactic sugar or object oriented power) is to do:
for index in 0 ... array.size
puts "array[#{index}] =...
How much does it cost to develop an iPhone application? [closed]
... were 3 developers, not all of which were full time, but 10 people in all. What was the other 10 people doing? I would guess that you'd have one graphic designer, and a PM. That leaves 5 people unaccounted for. Surely those 5 shouldn't be billed at $150/hour.
– Aheho
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Prevent onmouseout when hovering child element of the parent absolute div WITHOUT jQuery
... Tested on safari and chrome, but should work on everything! what is your browser?
– Amjad Masad
Jan 16 '11 at 21:19
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SQL JOIN - WHERE clause vs. ON clause
...eliable performance generalizations based on observed behaviors like this. What was true one day tends to be wrong the next, because this is an implementation detail rather than documented behavior. Database teams are always looking for places to improve optimizer performance. I'll be surprised if t...