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Does anyone know what the new Exit icon is used for when editing storyboards using Xcode 4.5?
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It actually unwinds back to the exact same instance of the view controller (and its views).
– Jon Hess
Sep 25 '12 at 7:39
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Is a Python dictionary an example of a hash table?
One of the basic data structures in Python is the dictionary, which allows one to record "keys" for looking up "values" of any type. Is this implemented internally as a hash table? If not, what is it?
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difference between use and require
... not having to reconcile collisions is a good point, and more generally there's a programming style which says "namespaces are a honking great idea, we should have more of them" (from "The Zen of Python") -- so e.g. that style recommends not using "using namespace foo;" in C++, so that reade...
Html code as IFRAME source rather than a URL
...e srcdoc-polyfill library only for them and the "pure" srcdoc attribute in all non-IE/Edge browsers (check caniuse.com to be sure).
<iframe srcdoc="<html><body>Hello, <b>world</b>.</body></html>"></iframe>
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What does “not run” mean in R help pages?
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It's not just time-consuming code that typically is put inside of a \dontrun{}. Code that requires user input needs to be be inside dontrun as well or else it won't pass R CMD check
– Dason
Oct 11 '12 at 23:03
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Float vs Decimal in ActiveRecord
...r that is how the IEEE specification defines floats in binary format. Basically, it stores sign, fraction and exponent to represent a Float. It's like a scientific notation for binary (something like +1.43*10^2). Because of that, it is impossible to store fractions and decimals in Float exactly.
Th...
How to add Active Directory user group as login in SQL Server
... Thank you for a very clear answer with annotated screen shots! I wish all answers were like this...
– NickG
Jan 17 '13 at 15:13
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How do you plot bar charts in gnuplot?
...plications it's more convenient to use the histogram plotting style, especially for grouping and stacking values.
– Christoph
Feb 1 '15 at 14:18
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How to use MySQL DECIMAL?
...et in trouble if you use DOUBLE columns for financial data.
DOUBLE is actually just a double precision (64 bit instead of 32 bit) version of FLOAT. Floating point numbers are approximate representations of real numbers and they are not exact. In fact, simple numbers like 0.01 do not have an exact r...
Web API Routing - api/{controller}/{action}/{id} “dysfunctions” api/{controller}/{id}
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god answer. but can't we add for all, api/{controller}/{action}/{id} along with api/{controller}/{id} ?
– karim
Nov 26 '14 at 11:16
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