introducing_erlang.pdf

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Erlang
GETTING STARTED IN FUNCTIONAL PROGRAMMING
Introducing
Simon St.Laurent
Getting Started in Functional Programming
Introducing Erlang
Simon St.Laurent
Beijing
Boston Farnham Sebastopol
Tokyo
Introducing Erlang
by Simon St.Laurent
Copyright © 2017 Simon St.Laurent. All rights reserved.
Printed in the United States of America.
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March 2017:
Second Edition
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David Futato
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Rebecca Demarest
Revision History for the Second Edition
2017-02-28:
First Release
See
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for release details.
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licenses or the intellectual property rights of others, it is your responsibility to ensure that your use
thereof complies with such licenses and/or rights.
978-1-491-97337-0
[LSI]
Table of Contents
Preface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
1.
Getting Comfortable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Installation
Firing It Up
First Steps: The Shell
Moving through Text
Moving through History
Moving through Files
Doing Something
Calling Functions
Numbers in Erlang
Working with Variables in the Shell
Seeing Your Bound Variables
Clearing Bound Variables in the Shell
Fun with fun
Defining Modules
From Module to fun
Functions and Variable Scope
Module Directives
Documenting Code
Documenting Modules
Documenting Functions
Documenting Your Application
1
2
2
3
3
3
4
5
6
8
9
10
2.
Functions and Modules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
11
13
16
16
16
18
19
21
23
iii

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