Software Testing Homework1

project description:In the recent visualization project, I encountered difficulties..csv data import failed.
The effect of the error: An error occurred during the data import process. The view does not show the ideal visualization.
Solution: Comment part of the program, gradually reduce the suspicious area, find out the wrong code.
“Console.log” inserts a print statement to show the intermediate results of the program or the contents of the relevant variables and deletes them after the error correction is over.