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reverse() Function

Function

reverse( array )

Returns an array in reverse order.

Parameters

Keyword Type Description

array

Any Type Array

The array to modify.

Returns

Any Type Array

Examples

Reverse a list

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reverse({10, 20, 30, 40})

Returns {40, 30, 20, 10}.

Use with CDTs

Note:  These CDT values are for reference only. If you copy and paste this expression, it will not evaluate.

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a!localVariables(
  local!customer: {
    'type!Customer'(customerId: 5),
    'type!Customer'(customerId: 2),
    'type!Customer'(customerId: 3),
  },
  fn!reverse(local!customer)
)

Returns {'type!Customer'(customerId: 3), 'type!Customer'(customerId: 2), 'type!Customer'(customerId: 5)}.

Use with maps

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a!localVariables(
  local!maps: { 
    a!map(1: "a"), 
    a!map(2: "b")
  },
  fn!reverse(local!maps)
)

Returns {a!map('2': "b"), a!map('1': "a")}.

Feature compatibility

The table below lists this function's compatibility with various features in Appian.
Feature Compatibility Note
Portals Compatible
Offline Mobile Compatible
Sync-Time Custom Record Fields Compatible

Can be used to create a custom record field that only evaluates at sync time.
Real-Time Custom Record Fields Incompatible

Custom record fields that evaluate in real time must be configured using one or more Custom Field functions.
Process Reports Compatible
Process Events Compatible

reverse() Function

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