Introduction to the use of substring () method in JavaScript basics

This method returns a subset of a string object.
Grammar

String.substring (Indexa, [INDEXB])

The following are the details of the parameters:

• Indexa: Integers between 0 and 1 that are less than the length of the string.
• INDEXB: (optional) An integer that is between 0 and the length of the string.

return value:

• The substring method returns a new substring based on the given parameter.

Example:

This will produce the following results:

(1,2): P
(0,10): Apples are
(5): s are round, and Apples are.