Prep Room
Coach note

Coding questions test whether you can carry a problem from a vague spec to a working solution while talking through your decisions. Interviewers watch the process at least as much as the answer.

Coding · Testing

Write unit tests for a function that parses and evaluates mathematical expressions with parentheses, addition, subtraction, multiplication, and division. What edge cases would you prioritize?

Type your answer
0of ~140 wordsAbout a minute spoken

Voice isn’t supported in this browser — type your answer in the box.

Create a free account to get more critiques.

Your answer
Your answer appears here as you speak.

Practice more

Thousands of questions, calibrated to your role — your progress saved across every session, with model answers and full breakdowns.