Ruby Switch Case Multiple Conditions

It is similar to the case keyword in another programming languages.

Ruby switch case multiple conditions. I found case statements in ruby pretty interesting as they are capable of doing a little more than the equivalent constructs in other languages. In this post you will learn a few different use cases and how it all really works under the hood. Basically if elsif else notice there s nothing after the word case. The components of a case statement in ruby.

If something is true the condition then you can do something. It is similar to the switch keyword in another programming languages. This is what needs to be true for the code inside the condition to work. Ruby print enter your grade.

In other programming languages this is known as a switch statement. It is used to match a single condition. Ruby uses case and when where others use switch and case. There can be multiple when statements into a single case statement.

It s important to get it right. Do the default break. Whenever you need to use some if elsif statements you could consider using a ruby case statement instead. Else code end compares the expression specified by case and that specified by when using the operator and executes the code of the when clause that matches.

Ruby case statement syntax case expression when expression expression then code. Can i use a range instead of a one number or if you want to understand basics of c switch case. How to convert a string to lower or upper case in ruby. It takes the variables that will be used by when keyword.

Do something break. The expression specified by the when clause is evaluated as the left operand. Variable case when bool condition statements when bool condition statements else the else clause is optional statements end if you assigned variable before. The stock 1 part is what we call a condition.

You can also check range in c switch case. Switch value case var s when new 1 2 contains s. How to write a switch statement in ruby. We all know how a simple case statement works we test on a condition that we give to a case statement we then walk through a set of possible matches each of which is contained in a when statement e g.

Stock 10 if stock 1 puts sorry we are out of stock end notice the syntax. If you re looking for a case with one condition but multiple matchers. Grade gets. Case condition when a or b do something when c do something end then you.