Web Animation using JavaScript: Develop & Design (Develop and Design)

Triggers, flowing from triggering elements 49

Trigonometric easings, easing values in Velocity 22

U

UI (user interface)

conventions in  making  design  choices  41

motion  design  improving   user    experience   38

UI  animation   libraries    14

UI  animation   workflow     65

UI pack

fade    effect  in   91

getting and installing   65

optimized   coding  approach    to  packaging   effects  70 – 72

stagger feature in   133 – 134

transition.fadeOut  effect   92

transitioning   text    fancifully   96

Unit types, values in Velocity 19 – 20

User experience. See UX (user experience)

User interface. See UI (user interface)

Utility aspects, of motion design

alerts  and flags   for leveraging  user    response     42 – 43

conventions in  making  design  choices  41

engaging    users   in  tasks    42

indicators  of  severity    of  irreversible    actions  43

limiting    animations   45

limiting    durations    45

mirroring   animations   44

overview    of   39 – 40

previewing  outcomes     41

reducing    concurrency  43

reducing    variety  44

visceral    nature  of  interactions     43

Utility function, Velocity 66