22 lines
548 B
Markdown
22 lines
548 B
Markdown
---
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title: Vector distance
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tags: math,algorithm
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expertise: beginner
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cover: blog_images/orange-coffee-3.jpg
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firstSeen: 2019-02-23T19:13:48+02:00
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lastUpdated: 2020-12-28T13:49:24+02:00
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---
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Calculates the distance between two vectors.
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- Use `Array.prototype.reduce()`, `Math.pow()` and `Math.sqrt()` to calculate the Euclidean distance between two vectors.
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```js
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const vectorDistance = (x, y) =>
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Math.sqrt(x.reduce((acc, val, i) => acc + Math.pow(val - y[i], 2), 0));
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```
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```js
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vectorDistance([10, 0, 5], [20, 0, 10]); // 11.180339887498949
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```
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