# basic block
10.times do |i|
    #puts i
end

# calling a block using a lambda function variable
printFunc = proc do |i|
    puts i
end
[1, 2, 3].each( &printFunc )

# how blocks work
def useBlocks
    yield( 5 )
    yield( 10 )
end

useBlocks do |var|
    puts "i was called with the parameter #{var}"
end

# how 5.times works
def loopTimes( count )
    for i in 0...count
        yield( i )
    end
end

loopTimes( 5 ) do |i|
    puts i
end

# how to check for blocks
def checkBlock
    if block_given?
        yield
    else
        puts "no block given"
    end
end

checkBlock
checkBlock do
    puts "block given"
end