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How to convert a ruby hash object to JSON?
... :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'
# => true
car.to_json
# => "{"make":"bmw","year":"2003"}"
As you can see, requiring json has mag...
Using git commit -a with vim
...he normal mode, which will save the file and exit vim. This is also easier for some people as it's the same key pressed twice.
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Copy table without copying data
... @TimoHuovinen: Perhaps create table NewTable like OldTable is an option for you. Link copied from deleted answer.
– Andomar
Oct 27 '13 at 9:13
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How to use RSpec's should_raise with any kind of exception?
...yntax:
lambda { some_method }.should raise_error
See the documentation (for RSpec 1 syntax) and RSpec 2 documentation for more.
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Loading Backbone and Underscore using RequireJS
...h the latest versions of Backbone and Underscore, it seems kind of tricky. For one, Underscore automatically registers itself as a module, but Backbone assumes Underscore is available globally. I should also note that Backbone doesn't seem to register itself as a module which makes it kind of incons...
What's the difference between and
I've seen the wildcard used before to mean any object - but recently saw a use of:
3 Answers
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How to find out element position in slice?
...there's no generic library function to do this. Go doesn't have a straight forward way of writing a function that can operate on any slice.
Your function works, although it would be a little better if you wrote it using range.
If you happen to have a byte slice, there is bytes.IndexByte.
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Convert an integer to a float number
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Just for the sake of completeness, here is a link to the golang documentation which describes all types. In your case it is numeric types:
uint8 the set of all unsigned 8-bit integers (0 to 255)
uint16 the set of all ...
Changing the color of the axis, ticks and labels for a plot in matplotlib
...'d like to Change the color of the axis, as well as ticks and value-labels for a plot I did using matplotlib an PyQt.
3 Ans...
Java Synchronized Block for .class
...his block.
With synchronized(this) the block is guarded by the instance. For every instance only one thread may enter the block.
synchronized(X.class) is used to make sure that there is exactly one Thread in the block. synchronized(this) ensures that there is exactly one thread per instance. If t...