# Aashish Shrivastava - Javascript - MongoDb, SQL # Question 1: Js ```javascript= const arrObj = [ { age: 9, class: 6, name: 'A'}, { age: 10, class: 5, name: 'B'}, { age: 11, class: 6, name: 'C'}, { age: 10, class: 5, name: 'D'}, { age: 12, class: 6, name: 'E'}, { age: 10, class: 5, name: 'F'}, { age: 12, class: 7, name: 'G'}, ] let myObj ={} arr.forEach((item)=>{ if(myObj[item.age]){ myObj[age] = [...myObj[item.name]] } }) console.log(myObj) // const result = { // 5: { // 10: ['B', 'D', 'F'] // }, // 6: { // 9: ['A'], // 11: ['C'], // 12: ['E'] // }, // 7: { // 12: ['G'] // } // } ```