16 lines
395 B
Markdown
16 lines
395 B
Markdown
---
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title: squareSum
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tags: math,beginner
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---
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Squares each number in an array and then sums the results together.
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Use `Array.prototype.reduce()` in combination with `Math.pow()` to iterate over numbers and sum their squares into an accumulator.
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```js
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const squareSum = (...args) => args.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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``` |