s202226701048/test/tslearn/datatype.ts

let StudentName:string ="Xiaoming"

let StudentAge:number = 18

let isChecked:boolean = true

let now:Date =new Date();

interface StudentInt{
    name:string
    age:number
    works?:Array<string>
    isChecked?:boolean

}



let studentList1:Array<StudentInt> =[
    {name:"Xiaoming",age:18}
    {name:"Xiaowang",age:18,isChecked:true}
]
let studentNew:StudentInt ={name:"XiaoHong",age:17,isChecked:false,works:["语文","数学"]}
/**
  * @param progress {number}
  

 */
interface AgentTask{
    progress:number
    complete:boolean
    errorMsg:string
}
interface StudentCountFunc
function checkCount(studentList:Array<StudentInt>):number{
    let checkList=studentList.map(item=>item.isChecked?1:0)
    let count=0;
    checkList.forEach(checked=>{
        if(checked==1) count ++
    })
    return count
}
let count =checkCount(studentList1)
console.log(count)