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midb() Function

Function

midb( text, start_num, num_bytes )

Returns a substring from the middle of the specified text.

Parameters

Keyword Type Description

text

Text

The text from which the substring will be extracted.

start_num

Number

The positional index in bytes of the first byte of the substring to be returned.

num_bytes

Number

The length in bytes of the substring to extract.

Returns

Text

Usage considerations

The first byte of the entire text value is considered to have an index = 1.

Examples

midb("boston",4,2) returns to

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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