11 lines
368 B
Markdown
11 lines
368 B
Markdown
### Fill array
|
|
|
|
Use `Array.map()` to map values between `start` (inclusive) and `end` (exclusive) to `value`.
|
|
Omit `start` to start at the first element and/or `end` to finish at the last.
|
|
|
|
```js
|
|
const fillArray = (arr, value, start = 0, end = arr.length) =>
|
|
arr.map((v, i) => i >= start && i < end ? value : v);
|
|
// fillArray([1,2,3,4],'8',1,3) -> [1,'8','8',4]
|
|
```
|