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How do you add an array to another array in Ruby and not end up with a multi-dimensional result?
...note the asterisk, and that a2 is the receiver
or splice:
a1[a1.length, 0] = a2
a1[a1.length..0] = a2
a1.insert(a1.length, *a2)
or append and flatten:
(a1 << a2).flatten! # a call to #flatten instead would return a new array
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What is the documents directory (NSDocumentDirectory)?
...ectoriesInDomains(NSLibraryDirectory, NSUserDomainMask, YES) objectAtIndex:0]
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Remove the first character of a string
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edited Jul 8 '18 at 19:00
Bjamse
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answered Feb 9 '11 at 13:34
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Python/postgres/psycopg2: getting ID of row just inserted
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cursor.execute("INSERT INTO .... RETURNING id")
id_of_new_row = cursor.fetchone()[0]
And plea...
How to add http:// if it doesn't exist in the URL?
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answered May 4 '10 at 0:30
Alix AxelAlix Axel
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How do you delete an ActiveRecord object?
...like
user.destroy
User.find(15).destroy
User.destroy(15)
User.where(age: 20).destroy_all
User.destroy_all(age: 20)
Alternatively you can use delete and delete_all which won't enforce :before_destroy and :after_destroy callbacks or any dependent association options.
User.delete_all(condition: ...
How to alias 'git checkout' to 'git co'
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answered Jan 23 '13 at 20:49
joseph.hainlinejoseph.hainline
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How does HashSet compare elements for equality?
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edited Feb 1 '18 at 7:10
answered Jan 21 '12 at 9:43
Jon...
Render a variable as HTML in EJS
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Akash Kumar Verma
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answered Apr 26 '12 at 9:09
Jakub ObozaJakub Oboza...
Is there an AddRange equivalent for a HashSet in C#
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edited Aug 9 '18 at 0:08
Neuron
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answered M...