[рони]

darktowerk56c,

<script>
const obj = {
    one: ['1', '2', '3'],
    two: ['4', '5', '6'],
    three: ['7', '8', '9'],
    four: ['10', '11', '12'],
}
const arr = Object.keys(obj).map(key => ({[key] : obj[key]}));
document.write(JSON.stringify(arr, "", 4))
  </script>