从javascript中的对象数组中删除重复的键值

Question

const response = [
      { en: "abc", fr: "def" },
      { en: "xyz", fr: "xyz" },
      { en: "abc", fr: "abc" },
      { en: "xyz", fr: "pwe" },
    ];

从数组中删除第二个和第三个对象

预期输出：

const res = [
      { en: "abc", fr: "def" },
      { en: "xyz", fr: "pwe" },
    ];

Answer 1

你可以只filter()他们：

const response = [
  { en: "abc", fr: "def" },
  { en: "xyz", fr: "xyz" },
  { en: "abc", fr: "abc" },
  { en: "xyz", fr: "pwe" },
];

const result = response.filter(({en, fr}) => en !== fr);

console.log(result);