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typeof() Function

## Function

typeof( value )

Returns the type number of a given value.

## Parameters

Keyword Type Description

`value`

Any Type

The value to be inquired for type. For example, typename(typeof(123)) might return "Integer (Number)".

Integer

## Examples

`typeof(123)` returns `1`, which is the numerical representation of the Number (Int) system data type.

``````1
typeof(123)
``````

Returns `1`, which corresponds to the `Number (Integer)` system data type.

### Comparing data types

``````1
typeof(loggedinuser()) = type!User
``````

Returns `true`.

### Returning multiple data type numbers

``````1
2
3
4
5
6
7
8
typeof(
"abc",
0.5,
47,
date(1985, 12, 10),
a!map(first: 1, second: 2),
{order: 1906, units: 46}
)
``````

Returns `{ 3, 2, 1, 7, 252, 94 }`, which correspond to `Text`, `Number (Decimal)`, `Number (Integer)`, `Date`, `Map`, and `Dictionary`, respectively.

### Returning list type numbers for lists

``````1
typeof({ 1, 2, {}, 17 }, {"abc", "", "def"})
``````

Returns `{ 101, 103 }`, which correspond to `List of Number (Integer)` and `List of Text String`, respectively.

``````1
typeof({ {1,2}, {1.0} })
``````

Returns `102`, which corresponds to `List of Number (Floating Point)`. Nested lists are flattened and treated as one list.

``````1
typeof({ {1,2}, {"as", 2.0} })
``````

Returns `197`, which corresponds to `List of Variant`.

## 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

typeof() Function