join block allows you to stick two or more pieces of text together.
note: Programmers often refer to pieces of text as Strings and the process of join bits of information together is sometimes called concatenation
In this example, two pieces of text are joined together and displayed in a label. The message, “hello world”, will never change.
This example is a little more interesting. The text in the label will change depending on what the user
In many cases you’ll want to make sure that a user doesn’t leave an input blank, and we’ll cover how to do that in the next tip.
You can join together as many strings as you like by clicking on the blue gear icon (also know as a block mutator) and manually add in extra items, where ever you want them.