es-toolkit/docs/reference/array/uniq.md

29 lines
546 B
Markdown
Raw Normal View History

2024-04-25 14:56:13 +03:00
# uniq
Creates a duplicate-free version of an array.
This function takes an array and returns a new array containing only the unique values
2024-04-25 14:56:13 +03:00
from the original array, preserving the order of first occurrence.
## Signature
```typescript
function uniq<T>(arr: T[]): T[];
```
### Parameters
2024-04-25 14:56:13 +03:00
- `arr` (`T[]`): The array to process.
### Returns
(`T[]`): A new array with only unique values from the original array.
## Examples
```typescript
const array = [1, 2, 2, 3, 4, 4, 5];
const result = uniq(array);
// result will be [1, 2, 3, 4, 5]
```