Learn Ruby the Hard Way: A Simple and Idiomatic Introduction to the Imaginative World of Computational Thinking with Code, Third Edition

Index

Symbols

" (double quotes)

escaping, 38

strings and, 28, 33

variables and, 30

' (single quotes)

escaping, 38

strings and, 33

variables and, 30

" " " (triple quotes), 37–38

/ (forward-slash) characters, 38–40

\ (backslash) characters, 38–40

_ (underscore) characters, 24

|| (or) expressions, 91–96

+= (increment by) operators, 71–72, 99

= (equal) characters

== vs., 25

ARGV and, 46–51

in asking questions of users, 42

escaping quotes, 38

format strings and, 34–37

naming variables with, 24–26

printing variables with, 28–29

returning values from functions with, 74–76

setting variables to numbers, 44–45

setting variables to strings, 30–33

== (double equal) characters, 25, 92–96

! (not) expressions, 91–96

!= (not equal) characters, 91–96

# (pound) ...