O'rtacha yoshni oling
getAverageAge(users) funktsiyasini yozing, bu age xususiyatiga ega bo’lgan obyektlar massivini oladi va o’rtacha qiymatni qaytaradi.
O’rtacha son uchun formula (age1 + age2 + ... + ageN) / N.
Misol uchun:
let john = { name: "John", age: 25 }; let pete = { name: "Pete", age: 30 }; let mary = { name: "Mary", age: 29 }; let arr = [john, pete, mary]; alert(getAverageAge(arr)); // (25 + 30 + 29) / 3 = 28function getAverageAge(users) { return users.reduce((prev, user) => prev + user.age, 0) / users.length; } let john = { name: "John", age: 25 }; let pete = { name: "Pete", age: 30 }; let mary = { name: "Mary", age: 29 }; let arr = [john, pete, mary]; alert(getAverageAge(arr)); // 28