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MySQL: @variable vs. variable. What's the difference?
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edited Jul 22 at 10:06
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answered Jun 17 '09 at 23:39
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How to crop an image in OpenCV using Python
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crop_img = img[y:y+h, x:x+w]
cv2.imshow("cropped", crop_img)
cv2.waitKey(0)
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format date with moment.js
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Jonathan LonowskiJonathan Lonowski
108k3131 gold badges188188 silver badges191191 bronze badges
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Remove duplicates from a List in C#
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230
Perhaps you should consider using a HashSet.
From the MSDN link:
using System;
using System.Co...
What does a double * (splat) operator do
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Ruby 2.0 introduced keyword arguments, and ** acts like *, but for keyword arguments. It returns a Hash with key / value pairs.
For this code:
def foo(a, *b, **c)
[a, b, c]
end
Here's a demo:
> foo 10
=> [10, [], {}]
&g...
Style child element when hover on parent
... Adrien Be
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answered Aug 27 '11 at 21:16
jtbandesjtbandes
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Check that Field Exists with MongoDB
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answered Nov 8 '13 at 20:34
Sergio TulentsevSergio Tulentsev
203k3636 gold badges337337 silver badges336336 bronze badges
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Is it possible to assign numeric value to an enum in Java?
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public enum EXIT_CODE {
A(104), B(203);
private int numVal;
EXIT_CODE(int numVal) {
this.numVal = numVal;
}
public int getNumVal() {
return numVal;
}
}
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Rails ActionMailer - format sender and recipient name/email address
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edited Nov 16 '16 at 0:03
Jonathan Allard
15.9k99 gold badges4949 silver badges7070 bronze badges
a...
Git clone without .git directory
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220
Use
git clone --depth=1 --branch=master git://someserver/somerepo dirformynewrepo
rm -rf ./dir...