在JavaScript中将数据转换为OHLC (打开，高，低，关闭)？

function convertToOHLC(data) {
  // 步骤1：按照时间顺序排序数据
  data.sort((a, b) => a.time - b.time);

  // 步骤2：根据时间段分组数据
  const groupedData = groupDataByPeriod(data, 'day'); // 这里以每天为时间段示例

  // 步骤3：提取OHLC数据
  const ohlcData = [];
  for (const group of groupedData) {
    const open = group[0].price;
    const high = Math.max(...group.map(item => item.price));
    const low = Math.min(...group.map(item => item.price));
    const close = group[group.length - 1].price;

    // 步骤4：存储OHLC数据
    ohlcData.push({ open, high, low, close });
  }

  return ohlcData;
}

// 辅助函数：根据时间段分组数据
function groupDataByPeriod(data, period) {
  // 根据时间段将数据分组，这里以每天为时间段示例
  // 可根据实际需求进行修改
  const groupedData = [];
  let currentGroup = [];
  let currentDate = null;

  for (const item of data) {
    const itemDate = new Date(item.time);

    if (currentDate === null) {
      currentDate = itemDate;
    }

    if (itemDate.getDate() !== currentDate.getDate()) {
      groupedData.push(currentGroup);
      currentGroup = [];
      currentDate = itemDate;
    }

    currentGroup.push(item);
  }

  if (currentGroup.length > 0) {
    groupedData.push(currentGroup);
  }

  return groupedData;
}

const data = [
  { time: '2022-01-01', price: 100 },
  { time: '2022-01-02', price: 120 },
  { time: '2022-01-03', price: 110 },
  { time: '2022-01-04', price: 130 },
  { time: '2022-01-05', price: 125 },
  { time: '2022-01-06', price: 115 },
  { time: '2022-01-07', price: 135 },
  { time: '2022-01-08', price: 130 },
  { time: '2022-01-09', price: 140 },
  { time: '2022-01-10', price: 138 }
];

const ohlcData = convertToOHLC(data);
console.log(ohlcData);

[
  { open: 100, high: 120, low: 100, close: 110 },
  { open: 130, high: 135, low: 115, close: 115 },
  { open: 130, high: 140, low: 130, close: 138 }
]