to_s to convert a number into a string

You will get an error with the following code.

The error message says that no implicit conversion of Integer into String.

In simple english, Ruby is saying that we cannot add an integer with a string. This makes sense. We should be able to add two numbers. We should be able to add two strings. However we should not be allowed to add a string and a number.

To solve this problem, we need to convert the integer into a string. Ruby provides method to_s to convert an integer to string. to_s stands for “to string”. Let’s use to_s on 24 to make it a string.