javascript 根据另一个数组顺序排序对象数组

Posted 2021-05-03

/**
 * Sort array of objects based on another array
 */

function mapOrder (array, order, key) {
  
  array.sort( function (a, b) {
    var A = a[key], B = b[key];
    
    if (order.indexOf(A) > order.indexOf(B)) {
      return 1;
    } else {
      return -1;
    }
    
  });
  
  return array;
};


/**
 * Example:
 */

var item_array, item_order, ordered_array;

item_array = [ 
  { id: 2, label: 'Two' }
, { id: 3, label: 'Three' }
, { id: 5, label: 'Five' }
, { id: 4, label: 'Four' }
, { id: 1, label: 'One'}
];

item_order = [1,2,3,4,5];

ordered_array = mapOrder(item_array, item_order, 'id');

console.log('Ordered:', JSON.stringify(ordered_array));