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What is the easiest way to push an element to the beginning of the array?

...f self, moving other elements upwards. And in use: irb>> a = [ 0, 1, 2] => [0, 1, 2] irb>> a.unshift('x') => ["x", 0, 1, 2] irb>> a.inspect => "["x", 0, 1, 2]" share | ...
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How do I reset the scale/zoom of a web app on an orientation change on the iPhone?

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Deleting DataFrame row in Pandas based on column value

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Ruby - test for array

... | edited Mar 30 at 18:35 siery 17311 silver badge1212 bronze badges answered Oct 6 '09 at 20:23 ...
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Sleeping in a batch file

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How to get the difference between two arrays in JavaScript?

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bundle install fails with SSL certificate verification error

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What are the Ruby Gotchas a newbie should be warned about? [closed]

...s strict: 0, "" and [] are all evaluated to true. In C, the expression 0 ? 1 : 0 evaluates to 0 (i.e. false). In Ruby, however, it yields 1, as all numbers evaluate to true; only nil and false evaluate to false. A corollary to this rule is that Ruby methods by convention — for example, regular-exp...
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Getting the first and last day of a month, using a given DateTime object

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How can I get the behavior of GNU's readlink -f on a Mac?

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