Ruby Print Variable

We can then print the element s value using puts.

Ruby print variable.

Ruby runtime programming workflow interactive ruby our roadmap object oriented programming variables reusing variable names things on the right go first built in data types numbers strings true false and nil symbols arrays hashes. Note in ruby you can access value of any variable or constant by putting a hash character just before that variable or constant. Using environment variables in ruby. This is like p but it prints big hashes arrays in a nicer way.

The puts function also displays output. Global variable in class1 is 10 global variable in class2 is 10 ruby instance variables. Ruby has yet another printing method. Instance variables begin with commat.

For each element in the sharks array ruby assigns that element to the local variable shark. Note that older version of ruby. You can also print all the gem specific variables configuration with the gem env command. However puts automatically inserts a newline at the end of the line being printed.

Def numbers puts 123 end numbers nil. 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. Let s discover how it works. The string or integer value to be printed is passed as an argument to this function.

Ruby arrays are objects and they provide the each method for working with elements. You won t see for in very often though. Here s how it works.