JS Calculator

Major Learning Goals/Code Review

Criteria	yes/no, and optionally any details/lines of code to reference
Correctly uses conditionals (`if`/`else`/`elsif` or other kinds).	✔️?
Correctly uses variables, and only uses `const` and `let` variables. The program uses `const` when possible. The program never uses `var`.	✔️?
Correctly creates and uses functions appropriately.	✔️?
Practices best-practices in JavaScript syntax. There are semi-colons at the end of most lines that need semi-colons.	✔️?
Practices best-practices in JavaScript naming conventions, and uses camelCase for variable names and function names.	✔️?

Functional Requirement	yes/no
The program can read two numbers and an operator and perform addition	✔️?
The program can read two numbers and an operator and can perform subtraction	✔️?
The program prints feedback to the user when attempting to divide by zero, and the program does not give an error	✔️?

Overall Feedback	Criteria	yes/no
Green (Meets/Exceeds Standards)	4+ in Code Review && 2+ in Functional Requirements
Yellow (Approaches Standards)	2+ in Code Review && 2+ in Functional Requirements, or the instructor judges that this project needs special attention
Red (Not at Standard)	0,1 in Code Review or 0,1 in Functional Reqs, assignment is breaking/doesn’t run with less than 5 minutes of debugging, or the instructor judges that this project needs special attention

Was the code particularly impressive in code style for any of these reasons (or more...?)