reveal.js - hotkey to jump to/from a named slide

reveal-jump.js

Reveal.initialize({
      keyboard: {
      // '0' key will jump between current slide and slide-X
      48: function() {jumpSlide()},
      }
});

function jumpSlide() {

  // The id of the slide you wish to jump to/from
  target = "slide-X";     

  slide = Reveal.getCurrentSlide();
  // If we're on the target slide, jump to original slide, if there was one
  if (slide.id == target) {
    Reveal.slide(orig['h'], orig['v']);
  }
  else {
    // 'Save' the current slide's index to jump back to later
    orig = Reveal.getIndices();
    // Jump to the target slide
    jump = Reveal.getIndices(document.getElementById(target));
    Reveal.slide(jump['h'], jump['v']);
  }
}