You are working on a script development team and your coworker has decided to pursue a new career opportunity. He has already given a two-week notice to your current employer. You have started knowledge transfer sessions with him. Here is the example script that your colleague has developed:

Your answers are to be well thought out, scholarly paragraphs that answer each question.

Describe the scripting standard issues with the above script?

How can you help your colleague to resolve all the scripting standard issues?

Is it possible to implement the code reusability in his/her script code? If yes, then what are the benefits of code reusability?