# Lambda

### Example

Here's a basic example of a lambda function that adds two numbers:

```javascript
(x, y) -> (x + y)

```

## Syntax

Lambda functions are defined using the following syntax:

```javascript
// Usage example:
add = (x, y) -> (x + y)

result = add(5, 3)  // returns 8
```

The syntax consists of the following parts:

1. **Parameters**: The input parameters are enclosed in parentheses.
2. **Arrow**: The arrow `->` separates the parameters from the function body.
3. **Body**: The function body is enclosed in parentheses.

## Return Value

The return value of a lambda function is the result of the expression in the function body.

## Single input lambda functions

If a lambda function has only one input parameter, the parentheses around the parameter can be omitted.

```javascript
square = v -> (v * v)

result =  square(5)  // returns 25
```