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Installed Ruby 1.9.3 with RVM but command line doesn't show ruby -v
... broken version of RVM. Ubuntu does something to RVM that produces lots of errors, the only safe way of fixing for now is to:
sudo apt-get --purge remove ruby-rvm
sudo rm -rf /usr/share/ruby-rvm /etc/rvmrc /etc/profile.d/rvm.sh
open new terminal and validate environment is clean from old RVM sett...
What is the --save option for npm install?
...
Looks like npm will not fire any error if you put a none exist option, like --save-xxxxxx. It just ignore it and the default behavior --save-prod will be in affect. Maybe --save comes from some old npm version.
– leon
M...
Difference between == and ===
...true
let one = 1 // 1
1 === one // compile error: Type 'Int' does not conform to protocol 'AnyObject'
1 === (one as AnyObject) // true (surprisingly (to me at least))
With strings we will have to get used to this:
var st = "123" //...
How do I reference an existing branch from an issue in GitHub?
...ant to do this, I manually make the link like this:
[a link to a branch](/_user_/_project_/tree/_branch_)
Where _user_, _project_, and _branch_ should be replaced with the parts of the branch's URL. For example, a branch in GitHub's "linguist" project:
[api-changes branch in github/linguist](/g...
Force line-buffering of stdout when piping to tee
...ering
-o, --output=MODE adjust standard output stream buffering
-e, --error=MODE adjust standard error stream buffering
If MODE is 'L' the corresponding stream will be line buffered.
This option is invalid with standard input.
If MODE is '0' the corresponding stream will be unbuffered.
Oth...
How to convert a set to a list in python?
...t recent call last):
File "<stdin>", line 1, in <module>
TypeError: 'set' object is not callable
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TypeError: module.__init__() takes at most 2 arguments (3 given)
...
Your error is happening because Object is a module, not a class. So your inheritance is screwy.
Change your import statement to:
from Object import ClassName
and your class definition to:
class Visitor(ClassName):
or
chan...
Java: random long number in 0
...odify this to perform nextLong:
long nextLong(Random rng, long n) {
// error checking and 2^x checking removed for simplicity.
long bits, val;
do {
bits = (rng.nextLong() << 1) >>> 1;
val = bits % n;
} while (bits-val+(n-1) < 0L);
return val;
}
...
Return positions of a regex match() in Javascript?
...ess loop.
– oriadam
Dec 24 '15 at 3:05
1
@OnurYıldırım - here's a jsfiddle of it working...I'v...
How to install gem from GitHub source?
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ERROR: While executing gem ... (NoMethodError) undefined method 'build' for Gem::Package:Module Sounds very cool but I won't be looking into it further. Just wanted to post that it didn't work for me in case someone else...