Stuff I keep using over and over again

main.js

//Logging
const log = val => console.log(val),
      error = message => console.error(message),
      type = val => log(typeof val)

//Math
let random = (min, max) => Math.random() * (max - min + 1) + min,
    floor = val => Math.floor(val),
    abs = val => Math.abs(val)

//Re-maps value from one range to another. 
const map = (value, in_min, in_max, out_min, out_max) => (value - in_min) * (out_max - out_min) / (in_max - in_min) + out_min

//Work with elements
const elementInfo = element => {
    let x = element.getBoundingClientRect().left + window.scrollX,
        y = element.getBoundingClientRect().top + window.scrollY,

        width = element.getBoundingClientRect().width,
        height = element.getBoundingClientRect().height,
        center = {
            x: x + 1 / 2 * width,
            y: y + 1 / 2 * height
        }
    return {
        x: x,
        y: y,
        width: width,
        height: height,
        center: center
    }
}
//contains 'x' 'y' 'width' 'height' , 'center.x' , 'center.y'
const distance = (elt1, elt2) => {

    let x1 = elementInfo(elt1).center.x,
        y1 = elementInfo(elt1).center.y,
        x2 = elementInfo(elt2).center.x,
        y2 = elementInfo(elt2).center.y,

        w1 = elementInfo(elt1).width,
        h1 = elementInfo(elt1).height,
        w2 = elementInfo(elt2).width,
        h2 = elementInfo(elt2).height,

        intersectX = abs(x1 - x2) < w1 / 2 + w2 / 2,
        intersectY = abs(y1 - y2) < h1 / 2 + h2 / 2,

        intersection = false,
        x, y

    x1 != x2 ? (
            x1 < x2 ?
            (x = (x2 - w2 / 2) - (x1 + w1 / 2)) :
            (x = (x1 - w1 / 2) - (x2 + w2 / 2))
        ) :
        (x = 0)

    y1 != y2 ? (
            y1 < y2 ?
            (y = (y2 - h2 / 2) - (y1 + h1 / 2)) :
            (y = (y1 - h1 / 2) - (y2 + h2 / 2))
        ) :
        (y = 0)

    if (intersectX && intersectY) intersection = true

    return {
        x: x,
        y: y,
        inretsects: intersection
    }
}
//Count distance between 2 DOM elements , checks if it intersects.