从一个array1到array2中删除重复项答案

【问题标题】：Remove duplicate from one array1 to array2从一个array1到array2中删除重复项
【发布时间】：2018-10-22 07:55:35
【问题描述】：

我在 angularjs 中有两个数组。

$scope.array1 = ["ID","Name","Brand","State"]; $scope.array2 = ["ID","Name","Brand","State","created_by","approved_by","date"];

我想要如下输出：

$scope.array3 = ["created_by","approved_by","date"];

【问题讨论】：

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标签： javascript arrays angularjs

【解决方案1】：

在javascript中使用filter()和includes()函数来解决你的问题

$scope.array1 = ["ID","Name","Brand","State"];
$scope.array2 = ["ID","Name","Brand","State","created_by","approved_by","date"];
$scope.array3 = array2.filter(s => !array1.includes(s));
console.log($scope.array3);

你可以试试这个。这可能对你有用。

【讨论】：

【解决方案2】：

您可以使用.filter() 和.includes() 过滤第二个数组：

let array1 = ["ID","Name","Brand","State"];
let array2 = ["ID","Name","Brand","State","created_by","approved_by","date"];

let result = array2.filter(s => !array1.includes(s));

console.log(result);

【讨论】：