[% setvar title Make length(@array) work %]
|Note: these documents may be out of date. Do not use as reference!|
To see what is currently happening visit http://www.perl6.org/
Make length(@array) work
Maintainer: Nathan Torkington <email@example.com> Date: 12 Sep 2000 Last Modified: 15 Sep 2000 Mailing List: firstname.lastname@example.org Number: 212 Version: 2 Status: Retired
length(@foo) should return the number of elements in @foo.
Presently length() has a prototype of ($) which means it coerces its argument into scalar context. Many newbies think of the number of elements in an array as its "length", and try to use this function. Instead of the size of the array, they get a rough base-10 logarityhm of the number of elements.
I propose to make length() return the number of elements in the array it is passed, if its first argument begins with @.
The optimizer could replace
The perl526 converter could replace
perlfunc for documentation on length() function