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Ruby 2.4 (base (Intepreted, object-oriented, High-level, easy to use),…
Ruby 2.4
base
Intepreted
object-oriented
High-level
easy to use
Data types
numbes
math
addition +
subtraction -
multiplication *
division /
exponentiation **
modulo %
float
fixnum
string
methods
reverse
upcase
downcase
length
booleans
command
console
(put string)puts
print
Methods are summoned using a "."
=begin, =end
name
start with lowercase letter
name_example
methods
знаки в конце
!
=
?