24 lines
421 B
JavaScript
24 lines
421 B
JavaScript
const fibonacci = function (member) {
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let indexNo = parseInt(member) - 1;
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if (indexNo < 0) {
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return "OOPS";
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}
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let fib = [1, 1];
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function makeFib() {
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let lastGuy = fib[fib.length - 1];
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let secondLast = fib[fib.length - 2];
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let newGuy = lastGuy + secondLast;
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fib.push(newGuy);
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}
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while (fib.length <= indexNo) {
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makeFib();
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}
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return fib[indexNo];
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};
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module.exports = fibonacci;
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