Cash Register Problem

[deetigupta8]

function checkCashRegister(price, cash, cid) {
   let currency = [
   ["PENNY" , 0.01],
    ["NICKEL", 0.05],
    ["DIME", 0.1],
    ["QUARTER", 0.25],
    ["ONE" , 1],
    ["FIVE", 5],
    ["10" , 10],
    ["TWENTY" , 20],
    ["ONE HUNDRED", 100]]

  let change = cash - price
  let matchedArr = [] 
  let match;
  let matchCurr = findingCurr()
   let matchedCurr;
  let statObj= {status: "", change:[]}
  
function findingCurr(){
  for (let i = 0; i < currency.length; i++){
   if(currency[i][1] <= change){
     matchedArr.push(currency[i][1])  
   } 
   match = Math.max(...matchedArr) 
  
  }
   for (let i = 0; i < currency.length; i++){
 if (match === currency[i][1]){
    matchedCurr = currency[i][0]
    console.log(matchedCurr)   
    return matchedCurr
 }
   }   
}    
   for (let i = 0; i < cid.length; i++){
     if (matchedCurr === cid[i][0] && cid[i][1] >= change){
       cid[i][1] =  cid[i][1] - match;
       statObj.status = "OPEN"  
       change = change - match
       statObj.change.push([cid[i][0], change])
       findingCurr()  
     }   
     else if (matchCurr === cid[i][0] && cid[i][1] < change){
       statObj.status = "INSUFFICIENT_FUNDS"  
     }
     else if (matchCurr === cid[i][0] 
     && cid[i][1] === change) {
       statObj.status = "CLOSED"
       statObj.change.push([cid[i][0], change])  
     }
     
   }
   console.log(statObj)
      return statObj;
 
}

checkCashRegister(19.5, 20, [["PENNY", 1.01], ["NICKEL", 2.05], ["DIME", 3.1], ["QUARTER", 4.25], ["ONE", 90], ["FIVE", 55], ["TEN", 20], ["TWENTY", 60], ["ONE HUNDRED", 100]]);

Hi, I am not sure why function call findingCurr() is not working when it is called here-

  if (matchedCurr === cid[i][0] && cid[i][1] >= change){
       cid[i][1] =  cid[i][1] - match;
       statObj.status = "OPEN"  
       change = change - match
       statObj.change.push([cid[i][0], change])
       findingCurr()  
     } ```

Please help :)

[prasadsaya]

@deetigupta8

I am not sure why function call findingCurr() is not working

First, you need to be clear about what the function findingCurr does? What is the purpose of findCurr in the below code?

  if (matchedCurr === cid[i][0] && cid[i][1] >= change){
       cid[i][1] =  cid[i][1] - match;
       statObj.status = "OPEN"  
       change = change - match
       statObj.change.push([cid[i][0], change])
       findingCurr()  
     }

Ideally, a function should take some parameters and return a value. Your function is using variables defined outside the function and returning undefined or a value. The variables used within the function need to be defined within the function only; for example the variable match.