Prism · Arrays

$unique

Removes repeated values from an array, keeping the first of each. Values are compared by their JSON text, so objects and arrays count too.

The source

{ tags: ['draft', 'review', 'draft', 'done', 'review'] }

The config

{ $unique: { $ref: '$.tags' } }

What comes out

['draft', 'review', 'done']

Output matches the expected value

Runs in this page on the installed package. The input and the expected output are defined by the example.