ComfyUI Node: LogicUtil_Memory String

LogicUtil_Memory String:

The LogicUtil_MemoryNode is designed to store a value in memory, exhibiting flip-flop behavior. This means it can retain a value until a specific condition prompts it to update. This node is particularly useful in scenarios where you need to maintain a state or value across different stages of your workflow. By leveraging this node, you can ensure that a value is preserved and only updated when necessary, providing a controlled and predictable way to manage data flow within your AI art projects.

LogicUtil_Memory String Input Parameters:

input1

input1 is the primary value that you want to store in memory. This parameter can be of any type, allowing for flexibility in the kind of data you wish to retain. The default value for input1 is an empty string (""). When the node is first executed or when the flag parameter is set, input1 will be stored in memory. This stored value can then be used in subsequent operations until it is updated again.

flag

flag is a control parameter that determines whether the stored value should be updated. This parameter can also be of any type, with a default value of 0. When the flag is set to a truthy value (e.g., 1 or True), the node will update the stored value with the current input1. If the flag is falsy (e.g., 0 or False), the node will retain the previously stored value. This mechanism allows for conditional updates, providing a way to control when the memory value should change.

LogicUtil_Memory String Output Parameters:

memory_value

The output parameter memory_value represents the value currently stored in memory. This value is of the same type as input1 and reflects the most recent value stored based on the flag condition. The memory_value is crucial for maintaining state across different parts of your workflow, ensuring that the necessary data is available when needed without being inadvertently overwritten.

LogicUtil_Memory String Usage Tips:

• Use the flag parameter to control when the memory value should be updated. This can be particularly useful in scenarios where you need to preserve a value until a specific condition is met.
• Initialize input1 with a meaningful default value to ensure that the node behaves predictably on its first execution.
• Consider using this node in conjunction with other logic nodes to create complex workflows that require state management and conditional updates.

LogicUtil_Memory String Common Errors and Solutions:

"Error: Invalid input type for input1"

• Explanation: This error occurs when the type of input1 is not compatible with the expected type.
• Solution: Ensure that input1 is of a type that the node can handle. If necessary, convert the input to a compatible type before passing it to the node.

"Error: Invalid input type for flag"

• Explanation: This error occurs when the type of flag is not compatible with the expected type.
• Solution: Ensure that flag is of a type that the node can handle. If necessary, convert the input to a compatible type before passing it to the node.

"Error: Memory value not set"

• Explanation: This error occurs when the node attempts to access the memory value before it has been initialized.
• Solution: Ensure that input1 is provided and the node is executed at least once to initialize the memory value before attempting to access it.