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Is there a way to make GHC provide the type class constraints of typed holes?

...ng out-of-scope types (use -fprint-potential-instances to see them all) • In the expression: show _ In an equation for ‘it’: it = show _ <interactive>:3:6: error: • Found hole: _ :: a0 Where: ‘a0’ is an ambiguous type variable • In the first argum...
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Fastest way to flatten / un-flatten nested JSON objects

...ltholder; }; flatten hasn't changed much (and I'm not sure whether you really need those isEmpty cases): Object.flatten = function(data) { var result = {}; function recurse (cur, prop) { if (Object(cur) !== cur) { result[prop] = cur; } else if (Array.isArray(cu...
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Show all Elasticsearch aggregation results/buckets and not just 10

I'm trying to list all buckets on an aggregation, but it seems to be showing only the first 10. 4 Answers ...
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How does Apple know you are using private API?

...since I do not work in the Apple review team. 1. otool -L This will list all libraries the app has linked to. Something clearly you should not use, like IOKit and WebKit can be detected by this. 2. nm -u This will list all linked symbols. This can detect Undocumented C functions such as _UIIma...
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How do I add options to a DropDownList using jQuery?

...orting it. What we can do is, create a new select element and then append all options. Once loop is finished, append it to actual DOM object. var myOptions = { val1 : 'text1', val2 : 'text2' }; var _select = $('<select>'); $.each(myOptions, function(val, text) { _select.append( ...
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Regex Named Groups in Java

...> TEST matcher.name(1) ==> login Replace matcher.replaceAll("aaaaa_$1_sssss_$2____") ==> aaaaa_TEST_sssss_123____ matcher.replaceAll("aaaaa_${login}_sssss_${id}____") ==> aaaaa_TEST_sssss_123____ (extract from the implementation) public final class Pattern implements java.io...
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How can I find the current OS in Python? [duplicate]

... I usually use sys.platform (docs) to get the platform. sys.platform will distinguish between linux, other unixes, and OS X, while os.name is "posix" for all of them. For much more detailed information, use the platform module. Th...
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Python argparse: Make at least one argument required

... args = vars(parser.parse_args()) if not any(args.values()): parser.error('No arguments provided.') share | improve this answer | ...
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GitHub pages are not updating

..., but the new article isn't showing up there. When I execute the server locally, a post lives at localhost:4000/posts/the-price-of-inconsistent-code/ . However, when I go to http://maltzj.github.io/posts/the-price-of-inconsistent-code I get a 404. I also added a new file which should live at htt...
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_=> what does this underscore mean in Lambda expressions?

What does an lambda expression like _=> expr mean? 5 Answers 5 ...