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How to generate a random number between a and b in Ruby?
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324
UPDATE: Ruby 1.9.3 Kernel#rand also accepts ranges
rand(a..b)
http://www.rubyinside.com/ru...
Is git's semi-secret empty tree object reliable, and why is there not a symbolic name for it?
...r empty sha1 tree (instead of relying of a "well known value").
Note: Git 2.25.1 (Feb. 2020) proposes in commit 9c8a294:
empty_tree=$(git mktree </dev/null)
# Windows:
git mktree <NUL
And adds:
As a historical note, the function now known as repo_read_object_file() was taught the empty...
Modify file in place (same dest) using Gulp.js and a globbing pattern
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edited Nov 27 '15 at 18:02
answered Apr 23 '14 at 15:49
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Android device does not show up in adb list [closed]
I have a HP Slate 21 that is connected to my Windows box using a USB cable. USB debugging is enabled on the device. After adding the proper %SingleAdbInterface% and %CompositeAdbInterface% entries to the android_winusb.inf file, I now see "Android ADB Interface" in my Device Manager. However, ru...
Android JSONObject - How can I loop through a flat JSON object to get each key and value
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edited Apr 29 '15 at 14:47
Ethan
3,96744 gold badges2020 silver badges3939 bronze badges
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@UniqueConstraint annotation in Java
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427
To ensure a field value is unique you can write
@Column(unique=true)
String username;
The @U...
Retrieve only the queried element in an object array in MongoDB collection
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425
MongoDB 2.2's new $elemMatch projection operator provides another way to alter the returned doc...
SQL Server database backup restore on lower version
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No, is not possible to downgrade a database. 10.50.1600 is the SQL Server 2008 R2 version. There is absolutely no way you can restore or attach this database to the SQL Server 2008 instance you are trying to restore on (10.00.1600 is SQL Server 2008). Your only options are:
upgrade this instance...
Inheritance and Overriding __init__ in python
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edited Nov 26 '19 at 19:14
Andrew Palmer
1,1021111 silver badges1313 bronze badges
answer...