concat() : Concatenate Strings

Concatenate multiple strings into one.

Signature

concat(str1, str2, str3, ...)

Parameters

Returns

Type: String

All input strings joined together.

Examples

Basic Concatenation

{{concat('Hello', ' ', 'World')}}
<!-- Output: Hello World -->

With Variables

<p>{{concat(model.firstName, ' ', model.lastName)}}</p>

Data:

doc.Params["model"] = new {
    firstName = "John",
    lastName = "Doe"
};

Output:

<p>John Doe</p>

Multiple Values

{{concat('Order #', model.orderNumber, ' - ', model.status)}}
<!-- Output: Order #12345 - Shipped -->

With Formatting

{{concat('Total: ', format(model.total, 'C2'))}}
<!-- Output: Total: $99.99 -->

In Log Statement

{{log concat('Processing order ', model.id)}}

Notes

• Null values are treated as empty strings
• Non-string values are converted to strings
• Empty strings are preserved
• More efficient than multiple + operations for many strings

See Also

• join Function
• String Functions