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