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Update fibonacci-array-generator.md

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The fibonacci sequence being zero indexed as well as the arrays, I think we could just initialize an array with the passed length, fill it with zeroes and use the indexes for the first positions.
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Elder Henrique Souza
2017-12-12 14:45:24 -02:00
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parent 836216242d
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snippets/fibonacci-array-generator.md
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@ -4,11 +4,13 @@ Create an empty array of the specific length, initializing the first two values
Use `reduce()` to add values into the array, using the sum of the last two values, except for the first two.
```js
const fibonacci = n =>
Array.apply(null, [0,1].concat(Array(n-2))).reduce(
(acc, val, i) => {
acc.push( i>1 ? acc[i-1]+acc[i-2] : val);
const fibonacci = n => {
return Array(n)
.fill(0)
.reduce((acc, val, i) => {
acc.push(i > 1 ? acc[i - 1] + acc[i - 2] : i);
return acc;
},[]);
}
// fibonacci(5) -> [0,1,1,2,3]
```