To move an array element from one array position to another with JavaScript, we use the splice method.
For instance, we write
const arrayMove = (arr, fromIndex, toIndex) => {
const element = arr[fromIndex];
arr.splice(fromIndex, 1);
arr.splice(toIndex, 0, element);
};
to define the arrayMove method.
We get the element at fromIndex with arr[fromIndex].
Then we call arr.splice with fromIndex and 1 to remove the item at fromIndex.
Then we insert the element at toIndex by calling splice with toIndex, 0, and element.
