JavaScript中数组交集的最简单代码？
假设以下是我们的数组-
var firstNamesArray=["John","David","Bob","Sam","Carol"]; var secondNamesArray=["Mike","Carol","Adam","David"];
执行数组交集的最简单方法是filter()与一起使用includes()。以下是代码-
示例
var firstNamesArray=["John","David","Bob","Sam","Carol"];
var secondNamesArray=["Mike","Carol","Adam","David"];
var intersectionOfArray=[];
intersectionOfArray=firstNamesArray.filter(v =>
secondNamesArray.includes(v));
console.log("Intersection of two array=");
console.log(intersectionOfArray);要运行以上程序，您需要使用以下命令-
node fileName.js.
在这里，我的文件名为demo141.js。
输出结果
这将产生以下输出-
PS C:\Users\Amit\JavaScript-code> node demo141.js Intersection of two array= [ 'David', 'Carol' ]