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html5 - canvas element - Multiple layers

...(ctx) are off screen. The image has been previously rendered onto ctx3. In test 1 of this benchmark, I directly render ctx3 onto ctx1. In test 2, I render ctx3 onto ctx2 and then ctx2 to ctx1. Test 2 is 30 times slower than test 1 on my computer. That is why I say using a intermediate canvas is much...
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How do you test functions and closures for equality?

..._func_impl.c As you see it is capable of checking identity only (the 2nd test yields false). But that should be good enough. share | improve this answer | follow ...
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Regular expression to return text between parenthesis

...gt;> import re >>> s = u'abcde(date=\'2/xc2/xb2\',time=\'/case/test.png\')' >>> re.search(r'\((.*?)\)',s).group(1) u"date='2/xc2/xb2',time='/case/test.png'" share | improve thi...
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Check if a string is a date value

...he same on all platforms? In all locales? In the future?) or you can use a tested solution and use your time to improve it, not reinvent it. All of the libraries listed here are open source, free software. share | ...
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How to debug Apache mod_rewrite

...sic URL resolution, use a command line fetcher like wget or curl to do the testing, rather than a manual browser. Then you don't have to clear any cache; just up arrow and Enter in a shell to re-run your test fetches. share ...
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When should null values of Boolean be used?

... started to convert my boolean s to Boolean s. This can cause crashes in tests such as 14 Answers ...
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Simulate limited bandwidth from within Chrome?

... The throttle feature isn't an upload limiter. It's for download testing and seeing how your page loads on a different connection. – Nelson Sep 24 '16 at 11:18 add a...
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How can I get the line number which threw exception?

... You get something similar to: System.Exception: Test at Tests.Controllers.HomeController.About() in c:\Users\MatthewB\Documents\Visual Studio 2013\Projects\Tests\Tests\Controllers\HomeController.cs:line 22 – Professor of programming D...
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How to check if type of a variable is string?

...asestring is the abstract superclass of str and unicode. It can be used to test whether an object is an instance of str or unicode. In Python 3.x, the correct test is isinstance(s, str) The bytes class isn't considered a string type in Python 3. ...
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“java.lang.OutOfMemoryError : unable to create new native Thread”

...r the reply. We are using an open source library ICE4j and trying to load test that. Cant we increase the limit of threads in OS when we know that there is 50% memory left on the server. – Deepak Tewani May 28 '13 at 10:37 ...