odin-default-js-exercises/10_fibonacci/fibonacci.js

23 lines
386 B
JavaScript

const fibonacci = function(num) {
let stringToNumber = +num;
let val1 = 0;
let val2 = 1;
let result = stringToNumber;
if( result > 0 ){
for(let i = 2; i <= num; i++){
result = val1 + val2;
val1 = val2;
val2= result;
}
return result;
} else{
return "OOPS";
}
};
// Do not edit below this line
module.exports = fibonacci;