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How to convert a ruby hash object to JSON?

...though). So, take a look here: car = {:make => "bmw", :year => "2003"} # => {:make=>"bmw", :year=>"2003"} car.to_json # NoMethodError: undefined method `to_json' for {:make=>"bmw", :year=>"2003"}:Hash # from (irb):11 # from /usr/bin/irb:12:in `<main>' require 'json' ...
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What are the advantages of NumPy over regular Python lists?

...as you describe, in Python, would take at least 20 MB or so, while a NumPy 3D array with single-precision floats in the cells would fit in 4 MB. Access in reading and writing items is also faster with NumPy. Maybe you don't care that much for just a million cells, but you definitely would for a bil...
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ASP.NET WebApi unit testing with Request.CreateResponse

... | edited Jul 20 '17 at 8:31 SteveC 12.8k2020 gold badges8282 silver badges143143 bronze badges answered...
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Using numpad in Vi (Vim) via PuTTY

... | edited Apr 15 '19 at 13:55 Peter Mortensen 26.5k2121 gold badges9292 silver badges122122 bronze badges ...
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URL matrix parameters vs. query parameters

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Tmux vs. iTerm2 split panes

...rm2 – thatmiddleway Apr 4 '12 at 18:34 10 If you use tmux for iterm2's split panes, it works exac...
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How to load program reading stdin and taking parameters in gdb?

... 132 If you were doing it from a shell you'd do it like this: % gdb myprogram gdb> run params .....
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.NET WebAPI Serialization k_BackingField Nastiness

...| edited Feb 6 '14 at 22:23 mkchandler 4,23833 gold badges1818 silver badges2424 bronze badges answered ...
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Which Boost features overlap with C++11?

...peof → auto, decltype Value initialized → List-initialization (§8.5.4/3) Math/Special Functions → <cmath>, see the list below gamma function (tgamma), log gamma function (lgamma) error functions (erf, erfc) log1p, expm1 cbrt, hypot acosh, asinh, atanh TR1 (they are marked in the d...
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ICollection Vs List in Entity Framework

... 3 So.... just for me to understand a bit further - List inherits IList, which inherits ICollection, which inherits IEnumerable? ...