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Version: 8.1

len

This function is used by Ignition's Expression language.

Description

Returns the length of the argument, which may be a string or a dataset. If the argument is a string, it returns the number of characters in the string. If the argument is a dataset, it returns the number of rows in the dataset. Will return zero if the argument is null.

Changed in 8.1.8
The len function can now be used with lists, sets, and tuples.

Syntax

len(value)

  • Parameters

    • Object value- The starting object, either a string, dataset, list, set, or tuple.
  • Results

    • Integer - The length of the provided object.

Examples

Code Snippet
len("Hello World") //Returns 11.
Code Snippet
len({Root Container.Table.data}) //Returns the number of rows in the table.