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Simplified isArrayLike

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Bruce Feldman
2018-08-13 15:43:39 -04:00
parent dc034ab4ef
commit 6857bfcedc
2 changed files with 2 additions and 16 deletions
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10
snippets/isArrayLike.md
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@ -2,16 +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).
Use the spread operator (`...`) to check if the provided argument is iterable inside a `try... catch` block and the comma operator (`,`) to return the appropriate value.
```js ```js
const isArrayLike = val => { const isArrayLike = obj => obj != null && typeof obj[Symbol.iterator] === 'function';
try {
return [...val], true;
} catch (e) {
return false;
}
};
``` ```
```js ```js

8
test/isArrayLike/isArrayLike.js
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@ -1,8 +1,2 @@
const isArrayLike = val => { const isArrayLike = obj => obj != null && typeof obj[Symbol.iterator] === 'function';
try {
return [...val], true;
} catch (e) {
return false;
}
};
module.exports = isArrayLike; module.exports = isArrayLike;