Learn how to enhance objects with User-Defined Types in Azure Bicep blog

otherExampleTypes.bicep

// Enforce string to be either 'This', 'Is' or 'Awesome'
type stringType = 'This' | 'Is' | 'Awesome'

// Enforce number to be either 1, 2, 3, 4 or 5
type intType = 1 | 2 | 3 | 4 | 5

// Enforce boolean to be true
type boolType = true

// Enforce to be an array of type string (look at the way of writing!)
type arrayType = string[]

// Enforce to be an array of allowed values: 'This', 'Is' or 'Awesome'
type arrayType2 = ('This' | 'Is' | 'Awesome')[]

// Enforcing to be an array of either 'This is awesome', 5, true or {}
type arrayMixedType = ('This is awesome' | 5 | true | {})[]