Part 2. Zig Language Fundamentals

A program stores values so it can use them later. In Zig, you store values with two main keywords:

12 items

Section	Title
1	Variables and Constants
2	Primitive Types
3	Integer Types and Overflow
4	Floating Point Numbers
5	Booleans and Comparisons
6	Type Inference
7	Undefined Values
8	Zero Values and Initialization
9	Strings and UTF-8
10	Comments and Documentation
11	Naming Conventions
12	Reserved Keywords

Writes › Book › Zig › Part 2. Zig Language Fundamentals ›

Variables and Constants

A program stores values so it can use them later. In Zig, you store values with two main keywords:

Writes › Book › Zig › Part 2. Zig Language Fundamentals ›

Primitive Types

Every value in a Zig program has a type.

Writes › Book › Zig › Part 2. Zig Language Fundamentals ›

Integer Types and Overflow

Integers are whole numbers.

Writes › Book › Zig › Part 2. Zig Language Fundamentals ›

Floating Point Numbers

Floating point numbers are numbers with fractional parts.

Writes › Book › Zig › Part 2. Zig Language Fundamentals ›

Booleans and Comparisons

A boolean is a value that can be only one of two things:

Writes › Book › Zig › Part 2. Zig Language Fundamentals ›

Type Inference

Type inference means Zig can figure out a type from the value you write.

Writes › Book › Zig › Part 2. Zig Language Fundamentals ›

Undefined Values

In Zig, undefined means “this value has not been initialized.”

Writes › Book › Zig › Part 2. Zig Language Fundamentals ›

Zero Values and Initialization

Initialization means giving a value to something when it is created.

Writes › Book › Zig › Part 2. Zig Language Fundamentals ›

Strings and UTF-8

A string is text.

Writes › Book › Zig › Part 2. Zig Language Fundamentals ›

Comments and Documentation

Comments are notes for humans who read the code.

Writes › Book › Zig › Part 2. Zig Language Fundamentals ›

Naming Conventions

Names are part of the program.

Writes › Book › Zig › Part 2. Zig Language Fundamentals ›

Reserved Keywords

A keyword is a word that has special meaning in Zig.