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| function getAverageAge(students) { | |
| return students.reduce((acc, student) => acc + student.age, 0) / students.length; | |
| } | |
| let john = { name: "John", age: 25 }; | |
| let pete = { name: "Pete", age: 30 }; | |
| let mary = { name: "Mary", age: 29 }; | |
| let arr = [ john, pete, mary ]; | |
| console.log( getAverageAge(arr) ); // (25 + 30 + 29) / 3 = 28 |
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