Identify the use of string.indexOf(str [,start]) method.
A) To create an array of substrings
B) To extract text strings known as substrings
C) To reference a character
D) To search for the occurrence of a substring within larger text strings

Question

Quizplus · Accepted Answer

The string.indexOf(str [,start]) method is used to search for the occurrence of a substring within larger text strings. The method returns the index of the first occurrence of the substring, or -1 if the substring is not found. The optional start parameter specifies the index at which the search should begin.

Identify the Use of String.indexOf(str [,Start]) Method