Concat

Concat( value, [ separator ] )
Concat( value, [ separator ] )
Concat( value, [ separator ] )
Concat( value, [ separator ] )
concat( value, [ separator ] )
Concat( value, [ separator ] )

Description

The Concat function returns a string which has joined a list of strings into a single string.

Parameters

Argument Type Definition and Requirements

value

Array of Strings

An array of strings to join.

separator

String

Optional - This value is placed between each joined string. Default is an empty string ("").

Returns

A string value.

Examples

The query below takes an array of Strings containing "Hen" and "Wen" as its first argument and a separator of a space (" ") as its second argument. The result of the Concat operation is "Hen Wen".

client.Query(Concat(Arr("Hen", "Wen"), " "));
"Hen Wen"
curl https://db.fauna.com/ \
    -u fnAChGwBcAACAO70ziE0cfROosNJHdgBmJU1PgpL: \
    -d '{ "concat": [ "Hen", "Wen" ], "separator": " " }'
HTTP/1.1 200 OK
{ "resource": "Hen Wen" }
result, _ := client.Query(f.Concat(f.Arr{"Hen", "Wen"}, f.Separator(" ")))

fmt.Println(result)
Hen Wen
System.out.println(
     client.query(Concat(Arr(Value("Hen"), Value("Wen")), Value(" ")))
     .get());
"Hen Wen"
client.query(q.Concat(['Hen', 'Wen'], ' '))
.then((ret) => console.log(ret))
Hen Wen
client.query(q.concat(["Hen", "Wen"], " "))
"Hen Wen"
client.query(Concat(Arr("Hen", "Wen"), " "))
"Hen Wen"

Is this article helpful? 

Tell Fauna how the article can be improved:
 Visit Fauna's forums or email docs@fauna.com

Thank you for your feedback!