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

ComfyUI Node: join (from LIST)

Class Name

Basic data handling: StringListJoin

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 LIST) Description

StringListJoin concatenates strings into one using a specified separator for flexible formatting.

join (from LIST):

The StringListJoin node is designed to concatenate a list of strings into a single string, using a specified separator to delineate each element. This node is particularly useful when you need to combine multiple strings into a cohesive format, such as creating a sentence from individual words or generating a CSV line from separate data fields. By allowing you to specify a separator, the node provides flexibility in how the strings are joined, ensuring that the resulting string meets your formatting needs. This functionality is essential for tasks that require precise string manipulation and formatting, making it a valuable tool for AI artists who need to manage and present text data effectively.

join (from LIST) Input Parameters:

strings

The strings parameter is a list of strings that you want to join together. This parameter is crucial as it contains the individual string elements that will be concatenated into a single output string. The list can contain any number of strings, and the node will process each one in the order they appear. There is no minimum or maximum limit to the number of strings you can include, allowing for great flexibility in handling various data sizes.

sep

The sep parameter specifies the separator string that will be inserted between each element of the strings list during the joining process. This parameter allows you to define how the individual strings are separated in the final output, which can be a space, comma, hyphen, or any other character or string. The default value for this parameter is a single space (" "), but you can customize it to suit your specific formatting requirements.

join (from LIST) Output Parameters:

STRING

The output of the StringListJoin node is a single string that results from concatenating the elements of the strings list, with the specified sep separator inserted between each element. This output is crucial for creating formatted text outputs from lists of strings, enabling you to generate coherent and structured text data for further processing or display.

join (from LIST) Usage Tips:

  • Use the sep parameter to customize the format of your output string, such as using a comma for CSV files or a newline character for multi-line text.
  • Ensure that the strings list is not empty to avoid generating an empty output string, unless that is the intended result.

join (from LIST) Common Errors and Solutions:

Empty separator list

  • Explanation: If the sep parameter is provided as an empty list, the node may not function as expected since it expects a list containing at least one string element.
  • Solution: Ensure that the sep parameter is a list containing a valid separator string, even if it is just an empty string ("") for no separation.

Non-string elements in strings list

  • Explanation: If the strings list contains non-string elements, the node may raise an error during the joining process.
  • Solution: Verify that all elements in the strings list are strings before passing them to the node. Convert any non-string elements to strings if necessary.

join (from LIST) Related Nodes

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