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Update vectorDistance.md

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Yusof Bandar
2019-02-23 15:42:20 +00:00
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vectorDistance.md
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@ -2,12 +2,12 @@
Returns the distance between two points.
Splits the arguments array into two points. Use `Array.prototype.reduce()`,`Math.pow()` and `Math.sqrt()` to calculate the Euclidean distance between two vectors.
Use `Array.prototype.reduce()`,`Math.pow()` and `Math.sqrt()` to calculate the Euclidean distance between two vectors.
```js
const vectorDistance = (...coords) => {
let length = Math.trunc(coords.length/2);
let sum = coords.slice(0,length).reduce((accumulator,currentValue,currentIndex) => accumulator + (Math.pow(currentValue-coords[length+currentIndex],2)),0);
let pointLength = Math.trunc(coords.length/2);
let sum = coords.slice(0,pointLength).reduce((accumulator,currentValue,currentIndex) => accumulator + (Math.pow(currentValue-coords[pointLength+currentIndex],2)),0);
return Math.sqrt(sum);
}
```