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Angelos Chalaris
2017-12-12 19:20:56 +02:00
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snippets/fibonacci-array-generator.md
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### Fibonacci array generator ### Fibonacci array generator
Create an empty array of the specific length, initializing the first two values (`0` and `1`). Create an empty array of the specific length, initializing the first two values (`0` and `1`).
Use `reduce()` to add values into the array, using the sum of the last two values, except for the first two. Use `Array.reduce()` to add values into the array, using the sum of the last two values, except for the first two.
```js ```js
const fibonacci = n => { const fibonacci = n =>
return Array(n) Array(n).fill(0).reduce((acc, val, i) => acc.concat(i > 1 ? acc[i - 1] + acc[i - 2] : i),[]);
.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] // fibonacci(5) -> [0,1,1,2,3]
``` ```