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13 lines (12 loc) · 664 Bytes
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function digits() {
const cardNumber = 4533787178994213;
const last4Digits = String(cardNumber).slice(-4);
return last4Digits;
}console.log(digits())
// The last4Digits variable should store the last 4 digits of cardNumber
// However, the code isn't working
// Before running the code, make and explain a prediction about why the code won't work
// Then run the code and see what error it gives.
// Consider: Why does it give this error? Is this what I predicted? If not, what's different?
// Then try updating the expression last4Digits is assigned to, in order to get the correct value
//Numbers don’t have .slice(), so we convert the number to a string