Template:Str sub/doc

Usage
= Substring of text starting at start and containing length characters. Base 0: the first character is numbered 0, and so on, e.g. returns the 2 characters starting at the 9th, i.e. ""

Template data
{       "description": "The template takes a substring of text starting at start and containing length characters.", "params": { "1": {                       "label": "Text", "description": "The substring to be trimmed.", "type": "string", "required": true },               "2": {                        "label": "Numeric position", "description": "Numeric position of the starting character within the string", "type": "number", "required": true },               "3": {                        "label": "Count", "description": "Number of characters for the substring", "type": "number", "required": true }       } }