Day 2 challenge is calculate the money on the bank. Each year the money increases with same growth rate.
For instance, $100 deposit with $20 growth rate. How many year the money will be about $170 in the bank?
At year 0: $100
At year 1: $120
At year 2: $144
At year 3: $172.8
So there is the JavaScript solution
function depositProfit(deposit, rate, threshold) { // initial yearCount 0 // deposit year 0 // // loop while threshold >= deposit // rate = deposit * 20/100 // deposit += rate // initial year += 1 // return year // let yearCount = 0; let depositCount = deposit; while(threshold >= depositCount) { let rateCount = depositCount * (rate/100); depositCount += rateCount; yearCount += 1; } return yearCount; } 
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