From 2c39c8a362e03f372ed0cc16da74eafa8b9f6ef5 Mon Sep 17 00:00:00 2001 From: Angelos Chalaris Date: Mon, 25 Feb 2019 08:30:33 +0200 Subject: [PATCH] Update vectorDistance.md --- snippets/vectorDistance.md | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/snippets/vectorDistance.md b/snippets/vectorDistance.md index 90457925a..1665fe44b 100644 --- a/snippets/vectorDistance.md +++ b/snippets/vectorDistance.md @@ -1,17 +1,17 @@ -### VectorDistance +### vectorDistance Returns the distance between two vectors. -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 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); + let pointLength = Math.trunc(coords.length / 2); + let sum = coords.slice(0, pointLength).reduce((acc, val, i) => acc + (Math.pow(val - coords[pointLength + i], 2)), 0); return Math.sqrt(sum); -} +}; ``` ```js -vectorDistance(10,0,5,20,0,10) //11.180339887498949 +vectorDistance(10, 0, 5, 20, 0, 10); // 11.180339887498949 ```