AZ-104 Certification Notes

Chapter 7.5 - ARM Template Functions

ARM Template - Functions

• Functions
  • Allows you to apply transformations to your ARM variables
    • Template Functions - built-in functions
    • User-Defined Functions - custom functions you create

Functions are called using parentheses eg. (): { "condition": "[equals(parameters('newOrExisting'),'new')]" }

Template Functions

• Array
  • array, concat, contains, createArray, empty, first, intersection, last, length, min, max, range, skip, take, union
• Comparison
  • coalesce, equals, less, lessOrEquals, greater, greaterOrEquals
• Date
  • dateTimeAdd, utcNow
• Deployment
  • deployment, environment, parameters, variables
• Logical
  • and, or, if, not
• Numeric
  • add, copy, index, div, float, int, min, max, mod, mul, sub
• Object
  • contains, empty, intersection, json, length, union
• Resource
  • extensionResourceId, ListAccountSas, listKeys, listSecrets, list, picZones, providers, reference, resourceGroup, resourceID, subscription, subscriptionResourceId, tenantResourceId
• String
  • base64, base64ToJson, base64ToString, concat, contains, dataUri, DataUriTOString, empty, endsWith, first, format, guid, indexOf, last, lastIndexOf, length, newGuid, padLeft, replace, skip, split, startsWith, string, substring, take, toLower, toUpper, trim, uniqueString, uri, uriComponent, uriComponentToString

Practice Quiz

• Which ARM Template function has contains, empty, intersection, JSON, length, union?

  • Object
  • Resource
  • Array
  • String

• Which type of function are custom functions that you create?

  • Numeric Functions
  • Template Functions
  • Object Functions
  • User-defined Functions

• Which ARM Template function can add, copyIndex, div, float, int, min, max, mod, mul, sub, etc?

  • Comparison
  • Logical
  • Numeric
  • Resource

• What are Functions in an ARM Template?

  • Functions allow you to apply transformations to your ARM variables. Type types: Template functions (Built-in) and User-defined functions (Custom)