如何从数组中捕获选定的列

function captureSelectedColumns(array, selectedColumns) {
  var result = [];

  for (var i = 0; i < array.length; i++) {
    var obj = array[i];
    var newObj = {};

    for (var j = 0; j < selectedColumns.length; j++) {
      var column = selectedColumns[j];
      newObj[column] = obj[column];
    }

    result.push(newObj);
  }

  return result;
}

// 示例用法
var array = [
  { name: 'John', age: 25, city: 'New York' },
  { name: 'Jane', age: 30, city: 'San Francisco' },
  { name: 'Bob', age: 35, city: 'Seattle' }
];

var selectedColumns = ['name', 'city'];
var capturedColumns = captureSelectedColumns(array, selectedColumns);

console.log(capturedColumns);
// 输出：[
//   { name: 'John', city: 'New York' },
//   { name: 'Jane', city: 'San Francisco' },
//   { name: 'Bob', city: 'Seattle' }
// ]