Koodoo Software Engineer Technical Assessment Solution 👾

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Solution Steps

• Initally, I extracted the balance amount into an array.
• Then I used every() method to determines from someone's ${accountBalanceHistory} whether the array is of type A (variable) or type B (fixed).

Things I wanted to clarify about my logic

• The task was to "write a function that returns B when the balance amount goes down by the same value each month or A when it varies month by month"

  • So, the question mentioned only about the balance that goes down, so my logic also followed the same. Hence, I didn't consider the part where the amount increases by the same value.

  For example, 0th month - 100, 1st month - 0, 2nd month - 100

• As negative balances are not usually in present in the bank savings account system, I didn't consider that too.