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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

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