ComfyUI > Nodes > Basic data handling > join (from data list)

ComfyUI Node: join (from data list)

Class Name

Basic data handling: StringDataListJoin

Category
Basic/STRING
Author
StableLlama (Account age: 861days)
Extension
Basic data handling
Latest Updated
2026-05-07
Github Stars
0.04K

How to Install Basic data handling

Install this extension via the ComfyUI Manager by searching for Basic data handling
  • 1. Click the Manager button in the main menu
  • 2. Select Custom Nodes Manager button
  • 3. Enter Basic data handling in the search bar
After installation, click the Restart button to restart ComfyUI. Then, manually refresh your browser to clear the cache and access the updated list of nodes.

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join (from data list) Description

StringDataListJoin concatenates strings from a list using a specified separator efficiently.

join (from data list):

The StringDataListJoin node is designed to facilitate the concatenation of strings from a data list using a specified separator. This node is particularly useful when you need to merge multiple string elements into a single cohesive string, with a defined separator placed between each element. The primary advantage of this node is its ability to handle a list of strings efficiently, ensuring that the separator is only inserted between the strings and not at the beginning or end of the resulting string. This functionality is essential for tasks that require the assembly of strings from various sources into a single, formatted output, making it a valuable tool for AI artists who need to manage and manipulate text data seamlessly.

join (from data list) Input Parameters:

strings

The strings parameter is a required input that accepts a data list of strings. This parameter represents the collection of string elements that you wish to join together. The impact of this parameter on the node's execution is significant, as it determines the content that will be concatenated. There are no specific minimum or maximum values for this parameter, but it must be a list of strings. The node will process each element in the list and join them using the specified separator.

sep

The sep parameter is a required input that specifies the separator string to be used between each element in the strings list. By default, this parameter is set to a single space " ". The separator is crucial as it defines how the individual string elements will be separated in the final output. The sep parameter is expected to be a list containing a single string element, which will be used as the separator. There are no specific constraints on the separator's length or content, allowing for flexibility in formatting the output string.

join (from data list) Output Parameters:

STRING

The output parameter is a single string that results from joining the elements of the strings data list with the specified sep separator. This output is crucial as it provides the final concatenated string, which can be used for further processing or display. The importance of this output lies in its ability to transform a list of separate string elements into a unified string, formatted according to the specified separator. This output is particularly useful for generating formatted text outputs or preparing data for presentation or storage.

join (from data list) Usage Tips:

  • Ensure that the strings input is a valid list of strings to avoid unexpected results or errors during execution.
  • Customize the sep parameter to match the desired format of your output string, such as using commas, spaces, or other characters to separate the elements.
  • Use this node to efficiently combine text data from various sources into a single, formatted string for easy manipulation and presentation.

join (from data list) Common Errors and Solutions:

Invalid input type for strings

  • Explanation: This error occurs when the strings input is not a list of strings, which is required for the node to function correctly.
  • Solution: Ensure that the strings input is a properly formatted list of strings. Convert any non-list inputs into a list format before passing them to the node.

Separator not specified correctly

  • Explanation: If the sep parameter is not provided as a list containing a single string, the node may not execute as expected.
  • Solution: Verify that the sep parameter is a list with one string element. Adjust the input format if necessary to meet this requirement.

join (from data list) Related Nodes

Go back to the extension to check out more related nodes.
Basic data handling
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join (from data list)