Ruby Print Variable

Note that older version of ruby.

Ruby print variable. Note in ruby you can access value of any variable or constant by putting a hash character just before that variable or constant. Global variable in class1 is 10 global variable in class2 is 10 ruby instance variables. Instance variables begin with commat. Ruby has yet another printing method.

However puts automatically inserts a newline at the end of the line being printed. We can then print the element s value using puts. Let s discover how it works. If you want to access these environment variables from ruby there is a special object you can use.

You can also print all the gem specific variables configuration with the gem env command. The ruby print function is used to display output on the screen. The string or integer value to be printed is passed as an argument to this function. Def numbers puts 123 end numbers nil.

This is like p but it prints big hashes arrays in a nicer way. Ruby arrays are objects and they provide the each method for working with elements. But it can show up if you try to puts a variable as the last line of a method and you re using the return value of that method. The puts function also displays output.

Note that print does not do the same. For each element in the sharks array ruby assigns that element to the local variable shark. You won t see for in very often though.