Ruby Switch Case Assignment

The components of a case statement in ruby.

Ruby switch case assignment.

In this post you will learn a few different use cases and how it all really works under the hood. It is used to match a single condition. It takes the variables that will be used by when keyword. You can collapse and expand arrays using ruby s parallel assignment operator.

It is similar to the switch keyword in another programming languages. In ruby it is implemented using the case argument. It is similar to the case keyword in another programming languages. If a multiple assignment contains more rvalues than lvalues the extra rvalues are ignored.

Whenever you need to use some if elsif statements you could consider using a ruby case statement instead. Case equality case subsumption or three equals operator. As of ruby 1 6 2 if an assignment has one lvalue and multiple rvalues the rvalues are converted to an array and assigned to the lvalue. In most computer languages the case or conditional also known as switch statement compares the value of a variable with that of several constants or literals and executes the first path with a matching case in ruby it s a bit more flexible and powerful.

In other programming languages this is known as a switch statement. In programming languages a switch statement is a type of control mechanism used to check if the value of a variable or expression exists and what the program should do from that point. There can be multiple when statements into a single case statement. Case as switch statement in ruby with parameter.