假设以下是带有重复项的对象数组-
var studentDetails=[
{studentId:101},
{studentId:104},
{studentId:106},
{studentId:104},
{studentId:110},
{studentId:106},
]使用set的概念来删除重复项,如以下代码所示:
var studentDetails=[
{studentId:101},
{studentId:104},
{studentId:106},
{studentId:104},
{studentId:110},
{studentId:106},
]
const distinctValues = new Set
const withoutDuplicate = []
for (const tempObj of studentDetails) {
if (!distinctValues.has(tempObj.studentId)) {
distinctValues.add(tempObj.studentId)
withoutDuplicate.push(tempObj)
}
}
console.log(withoutDuplicate);要运行上述程序,您需要使用以下命令-
node fileName.js.
输出结果
在这里,我的文件名为demo158.js。这将产生以下输出-
PS C:\Users\Amit\JavaScript-code> node demo158.js
[
{ studentId: 101 },
{ studentId: 104 },
{ studentId: 106 },
{ studentId: 110 }
]