Mutates an array to a new index location

reOrderArray.js

const reOrderArray = (array, oldIndex, newIndex) => {
    if ( array.length === 0 ) return array
    while (oldIndex < 0) {
        oldIndex += array.length
    }
    while (newIndex < 0) {
        newIndex += array.length
    }
    if (newIndex >= array.length) {
        var k = newIndex - array.length
        while ((k--) + 1) {
            array.push(undefined)
        }
    }
    array.splice(newIndex, 0, array.splice(oldIndex, 1)[0])
    return array
}