vectr2

Simple 2d vector class in javascript.

npm install vectr2 --save

Vectr2 = require('vectr2');
var vectorA = new Vectr2(0,0);
var vectorB = new Vectr2(1,2);

Project onto another vector.

var vectorC = vectorA.project(vectorB);

Get the dot product.

var dotProd = vectorA.dot(vectorB);

Find the angle between two vectors.

var theta = vectorA.angle(vectorB);