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Detect if homebrew package is installed
...tHolger Just
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mysql create user if not exists
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File content into unix variable with newlines
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answered May 7 '10 at 14:44
paxdiablopaxdiablo
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Java String split removed empty values
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answered Jan 30 '13 at 10:44
jlordojlordo
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How can I detect if this dictionary key exists in C#?
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edited May 13 '10 at 20:38
Adam Tuttle
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How to get a random number in Ruby
...get for that feature).
For instance, in this game where you need to guess 10 numbers, you can initialize them with:
10.times.map{ 20 + Random.rand(11) }
#=> [26, 26, 22, 20, 30, 26, 23, 23, 25, 22]
Note:
Using Random.new.rand(20..30) (using Random.new) generally would not be a good idea, ...
Boolean operators && and ||
...he reason for preferring one. A word of warning though, make sure you are 100% sure they can only be length one. You can get really goofy bugs otherwise.
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Jul 2 '11 at 19:28
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When to use Preorder, Postorder, and Inorder Binary Search Tree Traversal strategies
...The root of the tree is 7, the left most node is 0, the right most node is 10.
Pre-order traversal:
Summary: Begins at the root (7), ends at the right-most node (10)
Traversal sequence: 7, 1, 0, 3, 2, 5, 4, 6, 9, 8, 10
In-order traversal:
Summary: Begins at the left-most node (0), ends at t...
.Contains() on a list of custom class objects
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edited Apr 13 '10 at 11:55
answered Apr 13 '10 at 11:38
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Is there a “not in” operator in JavaScript for checking object properties?
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JordãoJordão
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