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How to read lines of a file in Ruby
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Ruby does have a method for this:
File.readlines('foo').each do |line|
http://ruby-doc.org/core-1.9.3/IO.html#method-c-readlines
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SQLAlchemy: Creating vs. Reusing a Session
... db_session.close()
connection.close()
Usage:
from mymodels import Foo
with db_session("sqlite://") as db:
foos = db.query(Foo).all()
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How to set custom location for local installation of npm package?
...o this by using the --prefix flag and the --global* flag.
pje@friendbear:~/foo $ npm install bower -g --prefix ./vendor/node_modules
bower@0.7.0 /Users/pje/foo/vendor/node_modules/bower
*Even though this is a "global" installation, installed bins won't be accessible through the command line unless ...
Can I escape html special chars in javascript?
... it on a fresh element if you just want to convert like this: const str = "foo<>'\"&"; $('<div>').text(str).html() yields foo&lt;&gt;'"&amp;
– amoebe
Nov 14 '17 at 21:46
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Rename all files in directory from $filename_h to $filename_half?
...f.png/' *.png
Update:
example usage:
create some content
$ mkdir /tmp/foo
$ cd /tmp/foo
$ touch one_h.png two_h.png three_h.png
$ ls
one_h.png three_h.png two_h.png
test solution:
$ rename 's/_h.png/_half.png/' *.png
$ ls
one_half.png three_half.png two_half.png
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Get current URL with jQuery?
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http://www.refulz.com:8082/index.php#tab2?foo=789
Property Result
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host www.refulz.com:8082
hostname www.refulz.com
port 8082
protocol http:
pathname index.php
href http://www.refulz.com:8082...
The Android emulator is not starting, showing “invalid command-line parameter”
...h:
"C:\Program Files (x86)\Android\android-sdk\tools\emulator-arm.exe" @foo
foo is the name of your virtual device.
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How to convert a Binary String to a base 10 integer in Java
...radix. There's an overload of Integer#parseInt() which allows you to.
int foo = Integer.parseInt("1001", 2);
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Calling a function from a string in C#
...ipped */
public delegate void functionPointer();
functionPointer foo = hello;
foo(); // Writes hello world to the console.
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Inline comments for Bash?
....) syntax doesn't actually seem to allow embedding comments: whereas echo "foo" `# comment` "bar" will terminate the comment at the second backtick, the supposed equivalent echo "foo" $(: # comment) "bar" doesn't parse anything behind the #.
– leftaroundabout
J...