Hello, and welcome to our analysis lesson. In this lesson, we will be tackling a common problem in the field of string manipulations with JavaScript. We will learn how to find all occurrences of a substring within a larger string. The techniques you will master today can be utilized in numerous situations, such as text processing and data analysis. Are you ready to get started? Let's jump right in!
Here is this unit's task: We have two lists of strings, both of identical lengths — the first containing the "original" strings and the second containing the substrings. Our goal is to detect all occurrences of each substring within its corresponding original string and, finally, return a list that contains the starting indices of these occurrences. Remember, the index counting should start from 0.
Example
Let's consider the following lists:
Original List: { "HelloWorld", "LearningJava", "GoForBroke", "BackToBasics" }
Substring List: { "loW", "ear", "o", "Ba" }.
The following are the expected outputs:
In "HelloWorld", "loW" starts at index 3.
In "LearningJava", starts at index 1.
In , appears at indices 1, 3, and 7.
In , starts at indices 0 and 6.
