14 lines
410 B
Markdown
14 lines
410 B
Markdown
### squareSum
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Squares each number passed into it and then sums the results together.
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Use `Array.prototype.reduce()` to iterate over numbers and to declare an accumulater.
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Use `Math.pow()` to calculate power of each number and add all numbers into acculmulator.
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```js
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const squareSum = (...arr) => arr.reduce((squareSum, number) => squareSum + Math.pow(number, 2), 0);
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```
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```js
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squareSum(1, 2, 2); // 9
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``` |