Feature request: animate in only

[evanwarner]

Using Delighters for the first time and loving the simplicity of just the class toggle that lets me control everything else. I think a good addition would be a config option to make the class changes be one-time actions, and not have the classes removed from elements when scrolling back up the page. That way once an element animates in, it's forever there.

[kush1960]

I've been wondering the same thing. It can become a bit jarring to have things moving out as well as in.

[crazy4groovy]

Shouldn't be too hard to add, with options.canRewind:
https://github.com/Q42/delighters/blob/master/src/delighters.js#L77

			if (factorStart < del.start && !del.started) {
				del.started = true;
				del.el.classList.add(options.classNames[1])
			}
			else if (factorStart > del.start && del.started && options.canRewind) {
				del.started = false;
				del.el.classList.remove(options.classNames[1])
			}
			if (factorEnd < del.end && !del.ended) {
				del.ended = true;
				del.el.classList.add(options.classNames[2])
			}
			else if (factorEnd > del.end && del.ended && options.canRewind) {
				del.ended = false;
				del.el.classList.remove(options.classNames[2])
			}