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Why is a round-trip conversion via a string not safe for a double?

...ber(value, 17, &number); DoubleToNumber is pretty simple -- it just calls _ecvt, which is in the C runtime: void DoubleToNumber(double value, int precision, NUMBER* number) { WRAPPER_CONTRACT _ASSERTE(number != NULL); number->precision = precision; if (((FPDOUBLE*)&val...
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iOS JavaScript bridge

...t's something simple enough that you might give it a try yourself. I personally did exactly this when I needed to do that. You might also create a simple library that suits your needs. 1. Execute JS methods from Objective-C This is really just one line of code. NSString *returnvalue = [webView st...
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Constants in Objective-C

... Overall, great answer, with one glaring caveat: you DO NOT want to test for string equality with the == operator in Objective-C, since it tests memory address. Always use -isEqualToString: for this. You can easily get a different...
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Can a unit test project load the target application's app.config file?

...ependent code will run fine. Edit: I forgot to add, this will not work in all situations, so you may need to include a startup script that renames the output .config to match the unit test's name. share | ...
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What's a good rate limiting algorithm?

...sages per = 8.0; // unit: seconds allowance = rate; // unit: messages last_check = now(); // floating-point, e.g. usec accuracy. Unit: seconds when (message_received): current = now(); time_passed = current - last_check; last_check = current; allowance += time_passed * (rate / per); if (...
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Is a Python list guaranteed to have its elements stay in the order they are inserted in?

...answer so I don't want to add another. He could also use list.append to really put his mind at ease. docs.python.org/2/tutorial/datastructures.html – NG. Dec 4 '12 at 0:15 1 ...
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Python - 'ascii' codec can't decode byte

I'm really confused. I tried to encode but the error said can't decode... . 7 Answers ...
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Formatting code snippets for blogging on Blogger [closed]

... I spent a couple hours on it and I can't get this to work at all. – thepaulpage Mar 21 '13 at 15:43 2 ...
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How can I visualize per-character differences in a unified diff file?

...ight space changes): git diff --color-words='[^[:space:]]|([[:alnum:]]|UTF_8_GUARD)+' In general: git diff --color-words=<re> where <re> is a regexp defining "words" for the purpose of identifying changes. These are less noisy in that they color the changed "words", whereas using ...
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How to write an inline IF statement in JavaScript?

... Just to note, all parens in this case are optional. It is often personal preference/coding style that dictates when they are used. – Will Klein Apr 22 '12 at 18:46 ...