gistfile1.rb

## RUBY TRICKS TO REMEMBER

# Parallel assignment

x, y = 1, 2		# Parallel assignment: x = 1; y = 2
a, b = b, a 		# Swap the values of a & b -- no throwaway var needed!

# Using methods to start a code block:

File.open("data.txt") do |f|	# Open the file 'data.txt'
	line = f.readline	# Read each line of it, in a loop
end				# Automatically close it at the end

# Another example of that:
t = thread.new do
	File.read("data.txt")
end