update: slice(0) changed to slice()

This commit is contained in:
shanyuhai123
2020-06-17 15:49:00 +08:00
parent 4c6541be33
commit d9a7448d93

View File

@ -5,12 +5,12 @@ tags: array,function,intermediate
Executes a provided function once for each array element, starting from the array's last element.
Use `Array.prototype.slice(0)` to clone the given array, `Array.prototype.reverse()` to reverse it and `Array.prototype.forEach()` to iterate over the reversed array.
Use `Array.prototype.slice()` to clone the given array, `Array.prototype.reverse()` to reverse it and `Array.prototype.forEach()` to iterate over the reversed array.
```js
const forEachRight = (arr, callback) =>
arr
.slice(0)
.slice()
.reverse()
.forEach(callback);
```