> For the complete documentation index, see [llms.txt](https://docs.cheddar.vihan.org/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.cheddar.vihan.org/docs/control-flow/loops/for-loops.md).

# For Loops

`for` loops are the most concise loop construct.

For `for` loops, **parenthesis are required**, this is described in the [Control Flow](https://github.com/cheddar/docs/tree/48c6d425cd54768a27ab1dc5d3df0eef0c8cee40/control_flow.md) section.

There syntax is highly resemblant of their C counterpart:

```go
for (var i := 0; i < 5; i++) {
    print "i is: #{i}"
}
```

The syntax of the `for` loop is:

```go
for (<initalization>; <condition>; <afterthought>) {
    [code block]
}
```

Essentially the way this works is:

```go
execute initalization
while condition evaluates to true
    execute code block
    execute afterthought
```

The output of the first `for` example would be:

```
i is: 0
i is: 1
i is: 2
i is: 3
i is: 4
i is: 5
```

This is because the variable `i` is initialized to `0` at the beginning. Then, because `i` is less then `5`, it will keep running the code block until `i` is not less than `5`. This happens because the `i++` increases `i` everytime, after, the code block (i.e. the `print`) is executed.