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ssh2 terminal type » Array a.length » 3 a[0] » 3.14159 a[1] » "pie" a[2] » 99 a[3] » nil b = Array.new b.type » Array b.
ssh2 terminal length » 0 b[0] = "second" b[1] = "array" b » ["second", "array"] Arrays are indexed using the [] operator. As with most Ruby operators, this is actually a method (in class Array) and hence can be overridden in subclasses. As the example shows, array indices start at zero. Index an array with a single integer, and it returns the object at that position or returns nil if nothing's there. Index an array with a negative integer, and it counts from the end.
ssh2 terminal This is shown in Figure 4.1 on page 35. Figure not available...
ssh2 terminal
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