> 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/functions/operations/functional-bonding.md).

# Functional Bonding

## Syntax

```swift
f & a
a & f
```

## Explanation

Depending on the side of the operand to bond, it will be binded to side it is on to the function.

```swift
f & a == *args -> f(*(args + [a]))
a & f == *args -> f(*([a] + args))
```

## Examples

The following are examples utilizing functional operators:

```swift
let mod10 = (%) & 10;
mod(15) == 5
```

```swift
let reciprocal = 1 & (/);
reciprocal(1 / 3) == 3
```