相关疑难解决方法(0)

我有两个JavaScript数组:

var array1 = ["Vijendra","Singh"];
var array2 = ["Singh", "Shakya"];

我希望输出为:

var array3 = ["Vijendra","Singh","Shakya"];

输出数组应该删除重复的单词.

如何在JavaScript中合并两个数组,以便我只按照它们插入原始数组的相同顺序从每个数组中获取唯一项？

我有两个数组:

数组1:

[
  { id: "abdc4051", date: "2017-01-24" }, 
  { id: "abdc4052", date: "2017-01-22" }
]

和数组2:

[
  { id: "abdc4051", name: "ab" },
  { id: "abdc4052", name: "abc" }
]

我需要基于这两个数组合并id并得到这个:

[
  { id: "abdc4051", date: "2017-01-24", name: "ab" },
  { id: "abdc4052", date: "2017-01-22", name: "abc" }
]

如何在不迭代的情况下做到这一点Object.keys？

我有两个对象数组:

var a = [
  {id: 4, name: 'Greg'},
  {id: 1, name: 'David'},
  {id: 2, name: 'John'},
  {id: 3, name: 'Matt'},
]

var b = [
  {id: 5, name: 'Mathew', position: '1'},
  {id: 6, name: 'Gracia', position: '2'},
  {id: 2, name: 'John', position: '2'},
  {id: 3, name: 'Matt', position: '2'},
]

我想要做的内连接这两个阵列a和b,并创建一个第三阵列像这样(如果位置属性不存在,则它变为零):

var result = [{
  {id: 4, name: 'Greg', position: null},
  {id: 1, name: 'David', position: null},
  {id: 5, name: 'Mathew', position: '1'},
  {id: 6, …