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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]"
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How to count total lines changed by a specific author in a Git repository?
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edited Aug 12 '09 at 12:32
answered Aug 12 '09 at 9:46
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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
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edited Mar 30 at 18:35
siery
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answered Oct 6 '09 at 20:23
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Tool to read and display Java .class versions
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142
Use the javap tool that comes with the JDK. The -verbose option will print the version number ...
How to get the difference between two arrays in JavaScript?
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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...
Add single element to array in numpy
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append() creates a new array which can be the old array with the appended element.
I think it...