Chapter 3. Blocks are Expressions

A block is a sequence of statements inside braces.

8 items

Section	Title
1	Blocks are Expressions
2	`if` Expressions
3	`switch` Expressions
4	`while` Loops
5	`for` Loops
6	`break`, `continue`, and Labels
7	`defer`
8	Exercises

Writes › Book › Learn › Learn Zig › Chapter 3. Blocks are Expressions ›

Blocks are Expressions

A block is a sequence of statements inside braces.

Writes › Book › Learn › Learn Zig › Chapter 3. Blocks are Expressions ›

`if` Expressions

In Zig, if is an expression. It can produce a value.

Writes › Book › Learn › Learn Zig › Chapter 3. Blocks are Expressions ›

`switch` Expressions

A switch chooses one branch from several alternatives.

Writes › Book › Learn › Learn Zig › Chapter 3. Blocks are Expressions ›

`while` Loops

A while loop repeats while a condition is true.

Writes › Book › Learn › Learn Zig › Chapter 3. Blocks are Expressions ›

`for` Loops

A for loop visits the elements of an array, slice, or range.

Writes › Book › Learn › Learn Zig › Chapter 3. Blocks are Expressions ›

`break`, `continue`, and Labels

break leaves a loop.

Writes › Book › Learn › Learn Zig › Chapter 3. Blocks are Expressions ›

`defer`

defer runs a statement when control leaves the current block.

Writes › Book › Learn › Learn Zig › Chapter 3. Blocks are Expressions ›

Exercises

This section collects the exercises for the chapter. They are meant to be small programs. Each one should compile and run.