Dinfio Documentation — Function Reference: substring()

Module string → substring()

Description

Extract a specified number of characters starting from a specified position in a string

substring(s, pos, len = -1)

Parameters

s (string) — A string
pos (number) — Starting position of the character to be extracted
len (number, optional) — How many characters are extracted. If len is -1 then all remaining characters will be extracted. The default value is -1

Return Value

string — Returns the extracted string

Usage Example

substring("Hello World", 2, 3)   ' Returns "llo"
substring("Hello World", 2)      ' Returns "llo World"