How do I tell if my player is to the left or the right of my enemy in javascript?

Question

I need to check if my player is on the left side or the right side of my enemy sprite so that I can move the enemy toward the player in that direction.

How do you check what side a sprite is on relative to another sprite?

I am using Kaboom.js, Javascript, on Replit.com

export default function run(speed = 250) {
    return {
        id: "run",
        require: [ "pos", "area", ],
        add() {
            if (   player is on left of enemy   ) {
                this.move(LEFT, speed)
            } else if (   player is on right of enemy   ) {
                this.move(RIGHT, speed)
            }
        },
    }
}