Content Comparison

Do While

This activity executes the activity contained in its body at least once, until the specified condition evaluates to false.

Activity Parameters

The Do While activity has only one parameter and it can be provided by manually inserted values or via IN arguments or variables:

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The following basic example will remove all instances of an IP (192.168.0.11) from a previously defined collection of IPv4 IPs addresses (where it appears twice):


This time, the condition will be provided via a boolean variable (IPexists), which dictates the Do While activity to loop until the the IP is not found in the collection anymore. It has been initialized to True to make sure it enters the Do While sequence at least once

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ForEach

This activity executes the activities in its body for each element found in a collection/array.

Activity Parameters

The ForEach activity properties can be provided via manually inserted values or via IN arguments or variables:

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The Sequence activity has no paramaters except the its DisplayName which can be customized for easier usability.

Switch

This activity selects one choice from a number of activities to execute, based on the value of a given expression.

Activity Parameters

The Switch activity has only one parameter and it can be provided by manually inserted values or via IN arguments or variables:

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switchOutput is a string OUT parameter which can be further used in various activities or displayed in Flowster Studio Portal.

While

This activity repeatedly executes a contained activity while a condition evaluates to true. The difference between While and Do While is that the Do While activity first executes the activities and then evaluates the condition, whereas While first evaluates the condition and only runs the child activities if the result is true.

Activity Parameters

The Do While activity has only one parameter and it can be provided by manually inserted values or via IN arguments or variables:

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Parameters:

• Condition (text box editor type) (type: boolean): the condition that must be met in order to execute the activity in the body of the Do While. It can be either an explicit condition input directly in the Condition field (as seen in the example above), or via a Boolean variable/IN argument. 

Example:

In the following basic example we will revisit the example from the Do While activity and we will remove all instances of an IP (192.168.0.11) from a previously defined collection of IPv4 addresses (where it appears twice) using the While activity:
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The condition will be provided via a boolean variable (IPexists), which dictates the Do While activity to loop until the the IP is not found in the collection anymore. It has been initialized to True to make sure it enters the Do While sequence at least once.

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The two getElementFromCollection activities have been added to the workflow to compare the contents of the Collection before and after the Do While activity run.

Before:

After: