14 lines
300 B
Markdown
14 lines
300 B
Markdown
```js run
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function getAverageAge(users) {
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return arr.reduce((prev, user) => prev + user.age, 0) / arr.length;
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}
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let john = { name: "John", age: 25 }
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let pete = { name: "Pete", age: 30 }
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let mary = { name: "Mary", age: 29 }
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let arr = [ john, pete, mary ];
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alert( getAverageAge(arr) ); // 28
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```
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