Question

如何在以下示例中对二维数组进行排序

var films = [
   ["action,sci-fi",             "Star Wars",               "description..."],
   ["comedy,adventure,sci-fi",   "Back to the future",      "description..."],
   ["drama",                     "The Green Mile",          "description..."],
   ["drama,comedy",              "Forrest Gump",            "description..."],
   ["fantasy,adventure",         "The Lord of the Rings",   "description..."],
];

排序：

var films = [
   ["comedy,adventure,sci-fi",   "Back to the future",      "description..."],
   ["drama,comedy",              "Forrest Gump",            "description..."],
   ["action,sci-fi",             "Star Wars",               "description..."],
   ["drama",                     "The Green Mile",          "description..."],
   ["fantasy,adventure",         "The Lord of the Rings",   "description..."],
];

Answer 1

如果您按索引位置1中的字符串排序，则：

films.sort(function(item1, item2){
  if (item1[1] > item2[1]) 
    return 1;
  if (item1[1] < item2[1]) 
    return -1;
  return 0;
});

Answer 2

您还可以更改数组的结构并创建对象而不是数组。我使用纯javascript的简化版本。

var films = [
 {name: "Star Wars"},
 {name: "Back to the Future"},
 {name: "Crimsons Peak"}
]; // original array

var sortByName = []; // new array to sort by

for(i=0; i<films.length; i++) {
    sortByName.push(films[i].name);
}

console.log(sortByName); // unordered

console.log(sortByName.sort()); // ordered

https://jsfiddle.net/kwq58c0k/

排序二维数组

2 个答案: