! Aware to Perl: How do I process/modify each element of an array?

How do I process/modify each element of an array?

Tips: Browse or Search all pages for efficient awareness of Perl functions, operators, and FAQs.

Subjects

By activity
Professions, Sciences, Humanities, Business, ...

User Interface
Text-based, GUI, Audio, Video, Keyboards, Mouse, Images,...

Text Strings
Conversions, tests, processing, manipulation,...

Math
Integer, Floating point, Matrix, Statistics, Boolean, ...

Processing
Algorithms, Memory, Process control, Debugging, ...

Stored Data
Data storage, Integrity, Encryption, Compression, ...

Communications
Networks, protocols, Interprocess, Remote, Client Server, ...

Hard World
Timing, Calendar and Clock, Audio, Video, Printer, Controls...

File System
Management, Filtering, File & Directory access, Viewers, ...

Use for/foreach:

    for (@lines) {
        s/foo/bar/;
        tr[a-z][A-Z];
    }

Here's another; let's compute spherical volumes:

    for (@radii) {
        $_ **= 3;
        $_ *= (4/3) * 3.14159;  # this will be constant folded
    }

Source: Perl FAQ: Data Manipulation
Copyright: Copyright (c) 1997 Tom Christiansen and Nathan Torkington.

(Corrections, notes, and links courtesy of RocketAware.com)

[Overview Topics]

Rapid-Links: Search | About | Comments | Submit Path: RocketAware > Perl > perlfaq4/How_do_I_process_modify_each_ele.htm