score:2

Accepted answer
    price.map(function (item) {
    return item.map(function (item) {
      return { first: item[0], second: item[1] };
    });
  })

score:1

const prices = price[0].map(function(value, key) {
  return {
    first: value[0],
    second: value[1],
  };
});

score:1

const pricesArr = [
    [
      [1642636800000, 6.479682086929113],
      [1642723200000, 6.34357451008912],
      [1642809600000, 5.121543485810777],
      [1642896000000, 3.9740756848518095],
      [1642982400000, 4.3575187509716],
      [1643068800000, 3.9012325159931027],
      [1643155200000, 3.4317289914580345],
      [1643241600000, 3.2757454409610474],
      [1643328000000, 2.638504600238906],
      [1643414400000, 2.7780564535948247],
      [1643500800000, 2.6434238272520734],
      [1643587200000, 2.4336766397631195],
      [1643673600000, 2.3564650737278945],
      [1643760000000, 2.0999935033955395],
      [1643846400000, 2.030984947088804],
      [1643932800000, 1.9601855774194021],
      [1644019200000, 1.939260102893443],
      [1644105600000, 1.9099357711674574],
      [1644192000000, 1.756137354391081],
      [1644278400000, 1.5997203967365643],
      [1644364800000, 1.5123161188548575],
      [1644451200000, 1.519374648506311],
      [1644537600000, 1.537046985055748],
      [1644624000000, 1.508372954955599],
      [1644710400000, 1.55420714318404],
      [1644796800000, 1.5875532111414001],
      [1644883200000, 1.6653755421073082],
      [1644969600000, 1.6647861014789664],
      [1645056000000, 1.7214785428910968],
      [1645142400000, 1.7801924052482303],
      [1645177320000, 1.7624504335296196],
    ],
  ];
  
   const prices = pricesArr.flat(1).map(price => ({
      first: price[0],
      second: price[1]
      }));

console.log(prices);

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