假设以下是我们的记录,其中包含一些重复的值-
var objectOfNationality = [ { nationality: "Indian" }, { nationality: "American" }, { nationality: "Emirati" }, { nationality: "Indian" }, { nationality: "American" } ];
要删除重复的记录,请使用概念。Set()
以下是代码-
var objectOfNationality = [ { nationality: "Indian" }, { nationality: "American" }, { nationality: "Emirati" }, { nationality: "Indian" }, { nationality: "American" } ]; function removeOrFilterNationality(objectOfNationality) { return Array.from(new Set(objectOfNationality.map(tempObject => tempObject.nationality))); } console.log(removeOrFilterNationality(objectOfNationality));
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demo228.js。
输出结果
输出如下-
PS C:\Users\Amit\JavaScript-code> node demo228.js [ 'Indian', 'American', 'Emirati' ]