What output does the expression UiPath.Substring(1,4) return if UiPath = "HappyAutomation"?

The expression UiPath.Substring(1, 4) is used to extract a portion of the string "HappyAutomation" starting from the character at index 1 and including the next four characters. In programming, index counting typically starts at 0, which means:

• The character at index 0 is 'H'
• The character at index 1 is 'a'
• The character at index 2 is 'p'
• The character at index 3 is 'p'
• The character at index 4 is 'y'

Thus, when using UiPath.Substring(1, 4), it begins at the second character (the 'a' from "HappyAutomation") and retrieves the next four characters: 'a', 'p', 'p', and 'y'. This results in the substring "appy".

This understanding highlights how substring functions work in most programming languages, where the first parameter specifies the starting index and the second parameter specifies the length of the substring to return. Therefore, the expression returns "appy".