Ruby Intro Tutorial - Control flow with If, Else, and Elsif
- Jeffrey Alan Greenback
- Oct 17, 2016
- 1 min read
The best way to make your app dynamic is with some conditions that resolve various decisions made by the end user. We call this Control Flow. Below is a quick lesson on Control Flow with If, Else, and Elsif statements. Let's create a small program that compares the name of two people and tells us whose name has more characters in it. Look at the Source Code below. First we create two String variables and initialize them. Then after that we will use the .length helper method on each String to compare the character length of each String. All Strings are objects in Ruby, so this method (and many more) are built in. Finally, We will print out a result for each of the three conditions (see below). Note: Comments in Ruby are very different compared to other programming languages. See below on how we do Multi and Single line comments.
Now give it a try! Write your own program that compares something like the ages of two people, or even one that takes user input.
