# Concat
<a name="concat-function"></a>

`concat` concatenates two or more strings.

## Syntax
<a name="concat-function-syntax"></a>

```
concat(expression1, expression2 [, expression3 ...])
```

## Arguments
<a name="concat-function-arguments"></a>

`concat` takes two or more string expressions as arguments. 

 *expression*   
The expression must be a string. It can be the name of a field that uses the string data type, a literal value like **'12 Main Street'**, or a call to another function that outputs a string.

## Return type
<a name="concat-function-return-type"></a>

String

## Examples
<a name="concat-function-example"></a>

The following example concatenates three string fields and adds appropriate spacing.

```
concat(salutation, ' ', firstName, ' ', lastName)
```

The following are the given field values.

```
salutation     firstName          lastName
-------------------------------------------------------
Ms.            Li                  Juan
Dr.            Ana Carolina        Silva
Mr.            Nikhil              Jayashankar
```

For these field values, the following values are returned.

```
Ms. Li Juan
Dr. Ana Carolina Silva
Mr. Nikhil Jayashankar
```

The following example concatenates two string literals.

```
concat('Hello', 'world')
```

The following value is returned.

```
Helloworld
```