# Remove Every Other Array Element in JavaScript

- 1 minute read

Consider the following array:

```
let array = [`good`, `bad`, `good`, `bad`];
```

Let’s imagine we wanted to remove every other element from this array. Here’s a snippet that will do just that, thanks to splicing:

```
let i = array.length;
while (i--) (i + 1) % 2 === 0 && (array.splice(i, 1));
```

After the above snippet has executed, `array`

will equal `["good", "good"]`

, as expected.

If you needed to, you could alternatively start counting earlier and begin by removing the first element:

```
let i = array.length;
while (i--) i % 2 === 0 && (array.splice(i, 1));
```

Once the above snippet has executed, `array`

will equal `["bad", "bad"]`

.

## Remove every nth array element

We can also apply this strategy in a similar way to remove every nth element from an array:

```
let i = array.length;
let n = 5; // The "nth" element to remove
while (i--) (i + 1) % n === 0 && (array.splice(i, 1));
```

The above snippet will remove every *fifth* element from `array`

, but you can substitute any other natural number for `n`

.

## Conclusion

There’s lots of handy little tricks for manipulating JavaScript arrays that I have saved, including this one. They certainly come in handy!

Thanks for reading.