ADOBE® FLEX® 3: PROGRAMMING ACTIONSCRIPT™ 3.0

ADOBE FLEX 3

Developer Guide

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The custom sort function orderLastName() uses a regular expression to extract the last name from each element

to use for the comparison operation. The function identifier

orderLastName is used as the sole parameter when

calling the

sort() method on the names array. The sort function accepts two parameters, a and b, because it works

on two array elements at a time. The sort function’s return value indicates how the elements should be sorted:

• A return value of -1 indicates that the first parameter, a, precedes the second parameter, b.

• A return value of 1 indicates that the second parameter, b, precedes the fir ...