arrayOfObjects.js

let studentRecords =
 [
{name: 'John', id: 123, marks : 98 },
{name: 'Baba', id: 101, marks : 23 },
{name: 'yaga', id: 200, marks : 45 },
{name: 'Wick', id: 115, marks : 75 } ] 

//1
let names=studentRecords.map(stu=>stu.name.toUpperCase())
console.log(names)


//2
let mark=studentRecords.filter(stu=>stu.marks>50)
console.log(mark)

//3
let marks=studentRecords.filter(stu=>stu.marks>50 && stu.id>120)
console.log(marks)

//4

let sum = 0
for(let i in studentRecords){
    let x = studentRecords[i].marks
    sum += x
}
console.log(sum)

//5
let marksss=studentRecords.filter(stu=>stu.marksss>50);
let name=marks.map(stu=>stu.name)
console.log(name)

//6
let Sum=0
let detail=studentRecords.filter(stu=>stu.id>120)
let Name=detail.filter(stu=> Sum+= stu.marks)
console.log("Sum Of Marks Of Students Who's ID is greater than 120 :",Sum)

//Q7
GraceMarks= studentRecords.map
    (function (item)
    {
        if(item.marks<50)
    
    {
        item.marks+=15 
    }
return item;
})
.filter(item=> item.marks>50)
.reduce(
    (acc,curr) => acc+curr.marks,0);
console.log(GraceMarks)


//Q8

let arr5 = []
let obj1 = {name: "Patrick Bateman", class: "Business Man", Age: 30}
arr5.push(obj1)
let obj2 = {name: "Travis Bickle", class: "Taxi Driver", Age: 32}
arr5.push(obj2)
let obj3 = {name: "Tony Montana", class: "Gangster", Age: 40}
arr5.push(obj3)
let obj4 = {name: "Lou Bloom", class: "News Agent", Age: 28}
arr5.push(obj4)
let obj5 = {name: "Norman Bates", class: "Motel Owner", Age: 22}
arr5.push(obj5)
let obj6 = {name: "Tyler Durden", class: "Soap Maker", Age: 27}
arr5.push(obj6)

console.log(arr5)



























































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































 CCC
filter











//Q7
let totalMarks=0;
for(let i=0; i< studentRecords.length;i++){
    if(studentRecords[i].marks<50){
        console.log(studentRecords[i].marks+15);
    }
}

//Q8