https://github.com/damianc/prod-sum

Getting a sum and a produkt.
https://github.com/damianc/prod-sum

Last synced: about 1 month ago
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Getting a sum and a produkt.

• Host: GitHub
• URL: https://github.com/damianc/prod-sum
• Owner: damianc
• Created: 2024-03-15T22:24:14.000Z (10 months ago)
• Default Branch: master
• Last Pushed: 2024-03-15T22:47:30.000Z (10 months ago)
• Last Synced: 2024-03-15T23:34:19.934Z (10 months ago)
• Language: JavaScript
• Size: 6.84 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# prod-sum

Getting a sum and a product.

- `Math.sum(numbers, mapper?)`

- `Math.prod(numbers, mapper?)`

```

Math.sum([1,2,3,4])

// 10

Math.prod([1,2,3,4])

// 24

```

```

// sum of squares

Math.sum([1,2,3,4], x => x**2)

// 1^2 + 2^2 + 3^2 + 4^2

// 30

```

```

function hypot(...args) {

  return Math.sqrt(

    Math.sum(args, x => x**2)

  );

}

hypot(1,2,3,4)

// 5.47722558

Math.hypot(1,2,3,4)

// 5.47722558

```