print_log.js

const print_log = (object, err=false) => {
  
  const log = document.createElement("pre");
  log.innerHTML = print_r(object);

  let border ="1px solid #d6d8db",
      radius = ".25rem",
      color = "#383d41" ,
      background = "#e2e3e5",
      padding = ".75rem 1.25rem";

  if(err) {
      border ="1px solid #f5c6cb";
      color = "#721c24";
      background = "#f8d7da";
  }

  log.style.border = border;
  log.style.borderRadius = radius;
  log.style.backgroundColor = background;
  log.style.color = color;
  log.style.padding = padding;

  document.body.appendChild(log);
}