JSFiddle - React, Tailwind, and code Playground

JavaScript

function Point (x,y) {
    this.x = x;
    this.y = y;
    this.findClosest = function(arr){
        var absValueX, absValueY;
        console.log(arr.x + " " + arr.y);
        for (item in array) {
            absValueX = Math.abs(item - this.X);
        }
    }
}

var p1 = new Point(5,6);
var p2 = new Point(6,7);
var p3 = new Point(10,15);
var p4 = new Point(-50,-89);

p1.findClosest(p2);