File "move-item-in-array.ts"
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import {clamp} from '../number/clamp';
export function moveItemInArray<T = any>(
array: T[],
fromIndex: number,
toIndex: number
): T[] {
const from = clamp(fromIndex, 0, array.length - 1);
const to = clamp(toIndex, 0, array.length - 1);
if (from === to) {
return array;
}
const target = array[from];
const delta = to < from ? -1 : 1;
for (let i = from; i !== to; i += delta) {
array[i] = array[i + delta];
}
array[to] = target;
return array;
}