S2 Guide: Language Tutorial

S2 is a programming language designed .

Literals

Literals are basically ways of defining values inside of code -- usually when we are assigning them to variables!

Strings

There are two different types of strings in S2.

The first kind comes in between double quotes:

var string test = "Testing";

The second kind comes in between sets of three double quotes:

"""I am also a string, but I can have "quotes" inside me."""

Some characters need to be escaped to show up properly in strings, with a backslash (\):

• If you need a newline, use: \n
• If you need a double quote inside single double quotes (or need to make three or more double quotes inside a triple double quotes), use: \"
• If you need to make a backslash, use: \\
• If you want to make a dollar sign (you'll learn why later in variables), use: \$

Integers

Integers (whole numbers) are another value like strings that the S2 language understands. This is an example of a variable being assigned a literal integer value:

var int width = 500;

True/False

You can also use true and false as values in code:

var bool isTrue = true;
var bool isFalse = false;

Arrays

An array is a list of items. They must all be the same type! Here is an example with strings:

var string[] counting = ["one", "two", "three"]

Hashes

A hash is like an array, except instead of just a list of items, all of those items get to have a "key" labeling it. All keys must be strings, and all the times must be the same type. Here's an example with strings:

var string{} fruits = ["apple" => "red", "lemon" => "yellow", "grape" => "purple"]