why-cant-we-deploy-today/js/utils/constants.js

export const SLIDES_SELECTOR = ".slides section";
export const HORIZONTAL_SLIDES_SELECTOR = ".slides>section";
export const VERTICAL_SLIDES_SELECTOR = ".slides>section.present>section";

// Methods that may not be invoked via the postMessage API
export const POST_MESSAGE_METHOD_BLACKLIST =
  /registerPlugin|registerKeyboardShortcut|addKeyBinding|addEventListener|showPreview/;

// Regex for retrieving the fragment style from a class attribute
export const FRAGMENT_STYLE_REGEX =
  /fade-(down|up|right|left|out|in-then-out|in-then-semi-out)|semi-fade-out|current-visible|shrink|grow/;