FQL v4 will be decommissioned on June 30, 2025. Ensure that you complete your migration from FQL v4 to FQL v10 by that date.

Fauna accounts created after August 21, 2024 must use FQL v10. These accounts will not be able to run FQL v4 queries or access the v4 Dashboard.

For more details, see the v4 EOL announcement and migration guide. Contact support@fauna.com with any questions.

LowerCase

This reference topic applies to FQL v4. Go to this page for the latest FQL v10 reference topics.

 
LowerCase( value )
lowercase( value )
LowerCase( value )
LowerCase( value )
LowerCase( value )
LowerCase( value )

Description

The LowerCase function returns a string in which all uppercase characters have been replaced by their corresponding lowercase characters.

Parameters

Parameter Type Definition and Requirements

value

String

The String to convert to lowercase.

Returns

A String containing all of the characters from value converted to lowercase.

Examples

The following query executes an array of independent LowerCase operations and returns the results in an array. The result array position matches the execution array position. The individual operations are:

  1. The string "FiRe" is converted to all lowercase characters, which causes "fire" to be the first string in the result.

  2. The string "FiRe And FireMan" is converted to all lowercase characters which causes "fire and fireman" to be the second string in the result.

client.query(
  [
    q.LowerCase('FiRe'),
    q.LowerCase('Fire And FireMan'),
  ]
)
.then((ret) => console.log(ret))
.catch((err) => console.error(
  'Error: [%s] %s: %s',
  err.name,
  err.message,
  err.errors()[0].description,
))
[ 'fire', 'fire and fireman' ]
result = client.query(
  [
    q.lowercase("FiRe"),
    q.lowercase("Fire And FireMan"),
  ]
)
print(result)
['fire', 'fire and fireman']
result, err := client.Query(
	f.Arr{
		f.LowerCase("FiRe"),
		f.LowerCase("Fire And FireMan"),
	})

if err != nil {
	fmt.Fprintln(os.Stderr, err)
} else {
	fmt.Println(result)
}
[fire fire and fireman]
try
{
    Value result = await client.Query(
        Arr(
            LowerCase("FiRe"),
            LowerCase("Fire And FireMan")
        )
    );

    Console.WriteLine(result);
}
catch (Exception e)
{
    Console.WriteLine($"ERROR: {e.Message}");
}
Arr(StringV(fire), StringV(fire and fireman))
System.out.println(
    client.query(
        Arr(
            LowerCase("FiRe"),
            LowerCase("Fire And FireMan")
        )
    ).get());
["fire", "fire and fireman"]
[
  LowerCase('FiRe'),
  LowerCase('Fire And FireMan'),
]
[ 'fire', 'fire and fireman' ]
Query metrics:

  •    bytesIn:  55

  •   bytesOut:  40

  • computeOps:   1

  •    readOps:   0

  •   writeOps:   0

  •  readBytes:   0

  • writeBytes:   0

  •  queryTime: 2ms

  •    retries:   0

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