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What's so bad about Template Haskell?

... lately (using haskell-src-exts / meta) - https://github.com/mgsloan/quasi-extras/tree/master/examples . I know this introduces some bugs such as not being able to splice in the generalized list comprehensions. However, I think that there's a good chance that some of the ideas in http://hackage.hask...
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Understanding Python's “is” operator

... Another duplicate was asking why two equal strings are generally not identical, which isn't really answered here: >>> x = 'a' >>> x += 'bc' >>> y = 'abc' >>> x == y True >>> x is y False So, why aren't they the same str...
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Application Skeleton to support multiple screens

... like the Samsung Galaxy Tab is classified as large (larger than 4 inches) Extra-large applies to large devices, for example large tablets Android defines four generalised screen densities: Qualifier Description Nominal value ldpi low density 120 ppi md...
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How to check if the string is empty?

Does Python have something like an empty string variable where you can do: 25 Answers ...
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Java executors: how to be notified, without blocking, when a task completes?

...blic class GetTaskNotificationWithoutBlocking { public static void main(String... argv) throws Exception { ExampleService svc = new ExampleService(); GetTaskNotificationWithoutBlocking listener = new GetTaskNotificationWithoutBlocking(); CompletableFuture<String> f = Completable...
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Check if $_POST exists

...g to check whether a $_POST exists and if it does, print it inside another string, if not, don't print at all. 14 Answers ...
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Optional Parameters with C++ Macros

... macro. enum { plain = 0, bold = 1, italic = 2 }; void PrintString(const char* message, int size, int style) { } #define PRINT_STRING_1_ARGS(message) PrintString(message, 0, 0) #define PRINT_STRING_2_ARGS(message, size) PrintString(message, size, 0) #define PRINT_...
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List to array conversion to use ravel() function

... wanted a way to do this without using an extra module. First turn list to string, then append to an array: dataset_list = ''.join(input_list) dataset_array = [] for item in dataset_list.split(';'): # comma, or other dataset_array.append(item) ...
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How to give border to any element using css without adding border-width to the whole width of elemen

... outline:1px solid white; This won't add the extra width and height. share | improve this answer | follow | ...
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How to check a string for specific characters?

How can I check if a string has several specific characters in it using Python 2? 5 Answers ...