mirror of
https://github.com/mauriceboe/TREK.git
synced 2026-06-20 22:01:45 +00:00
Maurice
13 lines
396 B
TypeScript
13 lines
396 B
TypeScript
interface ItemWithId {
|
|
id: number
|
|
[key: string]: unknown
|
|
}
|
|
|
|
export function swapItems(items: ItemWithId[], index: number, direction: 'up' | 'down'): number[] | null {
|
|
const target = direction === 'up' ? index - 1 : index + 1
|
|
if (target < 0 || target >= items.length) return null
|
|
const ids = items.map((a) => a.id)
|
|
;[ids[index], ids[target]] = [ids[target], ids[index]]
|
|
return ids
|
|
}
|