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snippets/js/s/vector-distance.md

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+---
+title: Vector distance
+type: snippet
+language: javascript
+tags: [math,algorithm]
+cover: orange-coffee-3
+dateModified: 2020-12-28T13:49:24+02:00
+---
+
+Calculates the distance between two vectors.
+
+- Use `Array.prototype.reduce()`, `Math.pow()` and `Math.sqrt()` to calculate the Euclidean distance between two vectors.
+
+```js
+const vectorDistance = (x, y) =>
+  Math.sqrt(x.reduce((acc, val, i) => acc + Math.pow(val - y[i], 2), 0));
+```
+
+```js
+vectorDistance([10, 0, 5], [20, 0, 10]); // 11.180339887498949
+```