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# ====================================================================================
# Functions
# ====================================================================================
# The last statement of a function is implictly returned. Parenthesis for functions
# are optional as long as the statement can be envaluated disambiguously.
puts ''
puts ''
puts '================================'
puts ''
# ====================================================================================
# Functions single parameter
# ====================================================================================
def add_one_to n
n + 1
end
puts add_one_to(3)
# ====================================================================================
# Functions with default parameter values
# ====================================================================================
def function_with_default_value v = 10
v * 10
end
puts "passing three: #{function_with_default_value(3)}"
puts "passing nil: #{function_with_default_value}"
# ====================================================================================
# Nil default parameter value and ||= operator.
# ====================================================================================
def function_with_nil_default_with_local a = nil
result = a
result ||= "or equal operator was exected and set a default value"
end
puts "passing 'hi': #{function_with_nil_default_with_local 'hi'}"
puts "passing nil: #{function_with_nil_default_with_local}"
puts ''
puts '================================'
puts ''
puts ''
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