Upgrade: Remove reliance on jQuery's $.easing object

[lzilioli]

I'm researching using velocity for a new project for which performance is a huge concern. Adding velocity on top of jQuery's effects is something I will have a hard time selling to the stakeholders.

Since Velocity and jQuery's effects are roughly the same size, I would feel much better custom building jQuery to not include effects, and use Velocity for everything relating to animation.

From what I can tell, of jQuery's effects, Velocity is only dependent on $.easing, which is not present if you build jQuery -effects. I'd love to see Velocity work with jQuery -effects.

I haven't dived in to this, but I can manage to get jQuery -effects and Velocity to load without errors if I add:

jQuery.easing = {
    linear: function( p ) {
        return p;
    },
    swing: function( p ) {
        return 0.5 - Math.cos( p*Math.PI ) / 2;
    }
};

(taken straight from jQuery) after loading jQuery and before loading Velocity. There may be some more dependencies that I haven't yet encountered, but either way this would be an awesome change to make Velocity all the better.

[julianshapiro]

I agree. I'll try to do this today. I'll get back to you shortly.

[julianshapiro]

@lzilioli

Done. Thank you so much for this suggestion.

Can you please test your jQuery build and confirm that this solves your issue? If not, let's get to the bottom of it one way or the other :)

[lzilioli]

@julianshapiro This worked great, after updating Velocity and concatenating it to my custom jquery-effects, I can load the page without error. Nice work and thanks again for the quick turn-around on this request.

[julianshapiro]

My pleasure, thank you for following up. Have a great evening, Luke.

[lzilioli]

@julianshapiro Wanted to update you. I ran some performance tests against jQuery - effects + Velocity vs. jQuery (with effects) + Velocity, and aside from total payload sizes, it appears that serving all of jQuery with Velocity on top is actually more performant. Intuitively this is a strange result, and I do not have a good explanation as to why I'm seeing it yet, but I thought it was worth noting.

[julianshapiro]

Hmmm..