Counter

Overview

The Counter Component maintains an internal counter that increments with each received message. It can also be reset to a specified value.

Usage

Input Parameters

Parameter	Type	Description
count	number	The initial counter value (default: 0).
increment	number	The amount by which the counter increments (default: 1, can be negative for decrement).

Input Ports

Port	Description
item	Triggers the counter increment.
reset	Resets the counter to a specified value or its initial value if not provided.

Output Ports

Port	Description
count	Emits the updated counter value after each increment.

Instructions

1. Set Initial Value and Increment

   • Configure the count parameter for the starting value.

   • Set increment to define how much the counter increases or decreases.

2. Increment Behavior

   • Each time a message arrives at the item port, the counter increases by the increment value.

3. Reset Counter

   • Sending a message to the reset port resets the counter to the specified value or its initial value if no value is provided.

Notes

• Supports both increment and decrement operations.

• State is maintained: The counter retains its value across executions until reset.

• Useful for tracking counts in loops, event occurrences, or rate-limiting scenarios.