Solution Review: Data Extraction
Explore how to extract sub-arrays safely from JavaScript arrays. Learn to verify array indices and use the slice method to obtain copies of array segments, ensuring valid data extraction based on conditional checks.
We'll cover the following...
We'll cover the following...
Solution
The solution relies on correctly visualizing the array and ensuring that correct indices are being accessed. First check if the row index exists by comparing it with the length of the raw_arr. Next, check if s and e are valid by ...