Group.prototype.previous = function()

in book/master_middleman/source/javascripts/waypoints/group.js [68:72]

• 5 lines of code
• 2 McCabe index (conditional complexity)

  Group.prototype.previous = function(waypoint) {
    this.waypoints.sort(byTriggerPoint)
    var index = Waypoint.Adapter.inArray(waypoint, this.waypoints)
    return index ? this.waypoints[index - 1] : null
  }