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Angelos Chalaris
2018-08-14 20:37:58 +03:00
parent 6857bfcedc
commit 26c3724d55
2 changed files with 3 additions and 1 deletions
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2
snippets/isArrayLike.md
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@ -2,6 +2,8 @@
Checks if the provided argument is array-like (i.e. is iterable). Checks if the provided argument is array-like (i.e. is iterable).
Check if the provided argument is not `null` and that its `Symbol.iterator` property is a function.
```js ```js
const isArrayLike = obj => obj != null && typeof obj[Symbol.iterator] === 'function'; const isArrayLike = obj => obj != null && typeof obj[Symbol.iterator] === 'function';
``` ```

2
test/initializeArrayWithRange/initializeArrayWithRange.js
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@ -1,3 +1,3 @@
const initializeArrayWithRange = (end, start = 0, step = 1) => const initializeArrayWithRange = (end, start = 0, step = 1) =>
Array.from({length: Math.ceil((end - start + 1) / step)}, (v, i) => i * step + start); Array.from({ length: Math.ceil((end - start + 1) / step) }, (v, i) => i * step + start);
module.exports = initializeArrayWithRange; module.exports = initializeArrayWithRange;