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How do I search within an array of hashes by hash values in ruby?
...@fathers.select {|father| father["age"] > 35 }
# => [ { "age" => 40, "father" => "Bob" },
# { "age" => 50, "father" => "Batman" } ]
Per the documentation, it "returns an array containing all elements of [the enumerable, in this case @fathers] for which block is not false."
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Change UICollectionViewCell size on different device orientations
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200
1) You could maintain and swap out multiple layout objects, but there's a simpler way. Just add...
MySQL stored procedure vs function, which would I use when?
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105
You can't mix in stored procedures with ordinary SQL, whilst with stored function you can.
e.g...
Why a function checking if a string is empty always returns true? [closed]
...if ($strTemp !== '')
since != '' will return true if you pass is numeric 0 and a few other cases due to PHP's automatic type conversion.
You should not use the built-in empty() function for this; see comments and the PHP type comparison tables.
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git undo all uncommitted or unsaved changes
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1704
This will unstage all files you might have staged with git add:
git reset
This will revert a...
JavaScript replace/regex
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edited Jul 22 '09 at 2:43
answered Jul 22 '09 at 1:02
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Convert any object to a byte[]
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201
Use the BinaryFormatter:
byte[] ObjectToByteArray(object obj)
{
if(obj == null)
re...
git shallow clone (clone --depth) misses remote branches
... shallow-description in the technical documentation, a "git-clone --depth 20 repo [...] result[s in] commit chains with a length of at most 20." A shallow clone therefore should contain the requested depth of commits, from the tip of a branch.
As - in addition - the documentation of git clone for t...
Difference between map and collect in Ruby?
...well: In C++'s Standard Template Library, it is called transform, in C# (3.0)'s LINQ library, it is provided as an extension method called Select. Map is also a frequently used operation in high level languages such as Perl, Python and Ruby; the operation is called map in all three of these language...
setup cron tab to specific time of during weekdays
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Same as you did for hours:
*/2 09-18 * * 1-5 /path_to_script
0 and 7 stand for Sunday
6 stands for Saturday
so, 1-5 means from Monday to Friday
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