webpack-bootstrap-ui-kit/src/js/main/loading-spinner.js

// browser tab visibility state detection

import Events from '../_events'

const NAME = '_main.loading-spinner'
const D = document
const BODY = D.body
const SPINNER = D.getElementById('PageLoading')

class SpinnerUI {
  static show () {
    console.log(`${NAME}: show`)
    SPINNER.classList.remove('d-none')
  }

  static hide () {
    console.log(`${NAME}: hide`)
    SPINNER.classList.add('d-none')
  }
}

export default SpinnerUI