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reverse() Function

Function
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reverse( array )

Returns an array in reverse order.

Parameters
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Keyword Type Description

array

Any Type Array

The array to modify.

Returns
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Any Type Array

Examples
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Reverse a list
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reverse({10, 20, 30, 40})

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Returns {40, 30, 20, 10}.

Use with CDTs
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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)
)

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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)
)

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

Feature compatibility
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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
Process Autoscaling Compatible

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