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Comes up in: Machine coding
This concept is being written. It gets the full five steps — explanation, predict, interview angle, practice with tests, and review cards. Here is exactly what it will cover, so you can study it elsewhere in the meantime.
What it covers
- product list, add/remove/quantity
- derived totals (money in integer paise/cents)
- coupon rules
- persistence
- stock limits
- currency formatting with Intl
Words you will know
What you will practise
- build (timed 75 min)
Interview questions this answers
- Why should money be stored as integers?
- How do you persist a cart for logged-out users and merge it on login?