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HTML5 Canvas vs. SVG vs. div

...ces mean that some of the footwork of dealing with the things you draw is done for you. And SVG is faster when rendering really large objects, but slower when rendering many objects. A game would probably be faster in Canvas. A huge map program would probably be faster in SVG. If you do want to use...
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Python: fastest way to create a list of n lists

... in xrange(n)] is from itertools import repeat d = [[] for i in repeat(None, n)] It does not have to create a new int object in every iteration and is about 15 % faster on my machine. Edit: Using NumPy, you can avoid the Python loop using d = numpy.empty((n, 0)).tolist() but this is actuall...
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How do I tell if a regular file does not exist in Bash?

... Parameter can be any one of the following: -e: Returns true value, if file exists -f: Return true value, if file exists and regular file -r: Return true value, if file exists and is readable -w: Return true value, if file exists and is writable -...
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Difference between HashMap, LinkedHashMap and TreeMap

...edited Feb 5 '18 at 1:32 Paul Rooney 15.8k88 gold badges3434 silver badges5656 bronze badges answered May 22 '10 at 21:18 ...
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What causes and what are the differences between NoClassDefFoundError and ClassNotFoundException?

... trying to call is does not exist. The difference between the two is that one is an Error and the other is an Exception. With NoClassDefFoundError is an Error and it arises from the Java Virtual Machine having problems finding a class it expected to find. A program that was expected to work at comp...
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Argparse: Required arguments listed under “optional arguments”?

I use the following simple code to parse some arguments; note that one of them is required. Unfortunately, when the user runs the script without providing the argument, the displayed usage/help text does not indicate that there is a non-optional argument, which I find very confusing. How can I get p...
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Library? Static? Dynamic? Or Framework? Project inside another project

...re are many tutorials on how to do such. I personally would recommend this one: https://github.com/jverkoey/iOS-Framework This is a pretty straight-forward guide and doesn't have the disadvantage of dealing with "fake static libraries"... check it out for more info... Once you've created your sta...
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Tools to get a pictorial function call graph of code [closed]

...ic methods are static methods, which try to determine it from the source alone without running the program. Advantages of dynamic methods: catches function pointers and virtual C++ calls. These are present in large numbers in any non-trivial software. Disadvantages of dynamic methods: you hav...
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Split a vector into chunks in R

...'t get me anywhere. So here is what I came up with, hopefully it helps someone some where. 20 Answers ...
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What are some methods to debug Javascript inside of a UIWebView?

...u in Menubar" is on. From the Menu-bar (of Safari) select Develop -> iPhone Simulator -> [your webview page]. That's it ! share | improve this answer | follow ...