0425ebefe7
Cleaned up the current snippets for consistency and minor problems, added multiple tags to most of them, archived a few.
14 lines
255 B
Markdown
14 lines
255 B
Markdown
### flatten
|
|
|
|
Flattens an array.
|
|
|
|
Use a new array, `Array.concat()` and the spread operator (`...`) to cause a shallow denesting of any contained arrays.
|
|
|
|
```js
|
|
const flatten = arr => [].concat(...arr);
|
|
```
|
|
|
|
```js
|
|
flatten([1, [2], 3, 4]); // [1,2,3,4]
|
|
```
|