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Description

This action, for the entire duration of Flow execution, evaluates the default expression in the background and if there is a change in the result, it forwards it to the data output. At the beginning, when the Flow is started, the expression is evaluated and forwarded to the data output, and later only if some change has occurred.

Properties

Specific

Expression

EXPRESSION (any)

Expression to be evaluated.

Inputs

seqin

SEQ | OPTIONAL

A standard sequence input.

Outputs

seqout

SEQ | OPTIONAL

A standard sequence output.

changed

DATA(any) | MANDATORY

Output through which the value of the evolved expression is passed once at the start and later only if there was some change in the result.

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