Hello World! is a simple program that simply prints to the screen. It doesn’t read anything, calculate anything, and accept human input. So, we use swift variables for this purpose.
Real programs, rather than producing the same outcome every time, tend to provide outputs dependent on some input provided by the user.
We need a place to store data in the computer’s memory before it can output anything significant. Variables play a role in this.
A variable is just a name for a specific area of memory on your computer that has been set aside for you to store, retrieve, and use data.
We’ll learn about swift’s variables and constants, as well as some basic data types:
Int: integer numbers
Double: floating-point numbers
String: a sequence of characters
Bool: true/false values
Because every variable has a type that specifies the type of data it can hold. It specifies how much memory should be set aside for the variable and what you can do with it.
Here are some useful tools to help you along your journey!
Setting up an IDE (Integrated Development Environment) can be difficult for beginners. The Online Compiler will enable you to run your code inside your browser without the need to install an IDE. If you need a more detailed explanation of a specific topic, the best place to find answers is in the Official Documentation.