JavaScript Question

function insertIntoMiddle(array, item) {

}

/* Do not modify code below this line */

const items = insertIntoMiddle([1, 3], 2); console.log(insertIntoMiddle([1, 3], 2), '<-- should be [1, 2, 3]'); console.log(insertIntoMiddle([1, 3, 7, 9], 5), '<-- should be [1, 3, 5, 7, 9]');