从日期数组中提取年份

function extractYearsFromDateArray(dateArray) {
  var yearArray = [];
  
  for (var i = 0; i < dateArray.length; i++) {
    var date = new Date(dateArray[i]);
    var year = date.getFullYear();
    yearArray.push(year);
  }
  
  return yearArray;
}

// 示例用法
var dates = ["2022-01-01", "2023-05-15", "2024-12-31"];
var years = extractYearsFromDateArray(dates);
console.log(years); // 输出: [2022, 2023, 2024]