Function unique

unique<T extends readonly unknown[]>(array: T): T
Gets only the unique elements of an array.
Type Parameters
- T extends readonly unknown[]
Parameters
- array: T
  The array to search.
Returns T
A new array containing only the unique elements.
Remarks
This method filters duplicates by inserting all elements into a Set. Therefore, each element is compared using same-value-zero equality, which has the same behavior as Object.is, except +0 and -0 are considered equal.
Example
Basic Usage
```
unique([1, 2, 3, 2, 1]) // [1, 2, 3]
unique([0, -0, 1]) // [0, 1]
unique([NaN, Number.NaN, NaN]) // [NaN]
```
Objects are compared by reference.
```
const foo = { a: 1 }
unique([foo, foo]) // [foo]
const bar = { a: 1 }
unique([foo, bar]) // [foo, bar]
```
- Defined in array/unique/index.ts:30