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How do I use define_method to create class methods?
...
Derived from: Jay and Why, who also provide ways to make this prettier.
self.create_class_method(method_name)
(class << self; self; end).instance_eval do
define_method method_name do
...
end
end
end
Updat...
Install Node.js on Ubuntu
... software-properties-common
As of Node.js v0.10.0, the nodejs package from Chris Lea's repo
includes both npm and nodejs-dev.
Don't give sudo apt-get install nodejs npm just sudo apt-get install nodejs
share
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How do I get out of a screen without typing 'exit'?
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Ctrl-A -> Ctrl-D just exits from the session for me, leaving it running in the background. Ctrl-A -> \ will exit the session completely (on Oracle Linux 6).
– Andrew Brennan
Apr 1 '19 at 16:03
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npm can't find package.json
... for the tutorial - in this case the package.json is in the dir you cloned from git in the prior step (docs.angularjs.org/tutorial)
– Kevin Hooke
Sep 30 '14 at 21:32
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How to use `string.startsWith()` method ignoring the case?
...true, 0, needle, 0, 5)); // true
It checks whether the region of needle from index 0 till length 5 is present in haystack starting from index 0 till length 5 or not. The first argument is true, means it will do case-insensitive matching.
And if only you are a big fan of Regex, you can do somet...
Automatically plot different colored lines
...ot will rotate (automatically for you) through MATLAB's default colormap.
From the MATLAB site on hold:
hold all holds the plot and the current line color and line style so that subsequent plotting commands do not reset the ColorOrder and LineStyleOrder property values to the beginning of the l...
Mockito: Inject real objects into private @Autowired fields
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Which library does this come from, I can only see InjectMocks in org.mockito
– Sameer
Jun 25 '19 at 13:47
1
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How to convert a table to a data frame
...rs, another way I've used is data.frame(rbind(mytable)). Using the example from @X.X:
> freq_t = table(cyl = mtcars$cyl, gear = mtcars$gear)
> freq_t
gear
cyl 3 4 5
4 1 8 2
6 2 4 1
8 12 0 2
> data.frame(rbind(freq_t))
X3 X4 X5
4 1 8 2
6 2 4 1
8 12 0 2
If t...
How can I put a ListView into a ScrollView without it collapsing?
... You could easily write a static method that creates a LinearLayout from an Adapter.
– Romain Guy
Dec 19 '11 at 20:05
125
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Cast a Double Variable to Decimal
...cimal, but doesn't a decimal carry more precision? (i.e. much like casting from an int to a double can be implicit.)
– user2821275
Aug 14 '14 at 18:35
4
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