Array.concat(...items: ConcatArray<T>[]): T[]
Combines two or more arrays. This method returns a new array without modifying any existing arrays.
...items: ConcatArray<T>[]
Array.concat(...items: (T | ConcatArray<T>)[]): T[]
Combines two or more arrays. This method returns a new array without modifying any existing arrays.
...items: (T | ConcatArray<T>)[]