The strSubstr() method returns a portion of the string, starting at the specified index and extending for a given number of characters afterwards.
The string value to return the substring from.
The index of the first character to include in the returned substring.
Optional
The number of characters to extract.
A new string containing the specified part of the given string.
0.4.2
The strSubstr() method returns a portion of the string, starting at the specified index and extending for a given number of characters afterwards.