8ee50178f3
Correct: `Array.from()` (it’s a static method) Incorrect: `Array.join()` (doesn’t exist; it’s a prototype method) This patch uses the common `#` syntax to denote `.prototype.`.
15 lines
306 B
Markdown
15 lines
306 B
Markdown
### tail
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Returns all elements in an array except for the first one.
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Return `Array.prototype.slice(1)` if the array's `length` is more than `1`, otherwise, return the whole array.
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```js
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const tail = arr => (arr.length > 1 ? arr.slice(1) : arr);
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```
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```js
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tail([1, 2, 3]); // [2,3]
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tail([1]); // [1]
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```
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