animejs

// CSS selector
anime({ targets: '.box' })
 
// DOM elements
anime({ targets: document.querySelectorAll('.box') })
 
// Array of elements
anime({ targets: [el1, el2, el3] })
 
// JavaScript object
const obj = { x: 0 }
anime({ targets: obj, x: 100 })

anime({
  targets: '.element',
  translateX: 250,
  scale: 2,
  opacity: 0.5,
  backgroundColor: '#FFF'
})

anime({
  targets: '.element',
  translateX: 250,   // Individual transform
  rotate: '1turn',   // Not 'transform: rotate()'
  scale: 2
})

anime({
  targets: 'path',
  d: 'M10 80 Q 77.5 10, 145 80', // Path morphing
  fill: '#FF0000',
  strokeDashoffset: [anime.setDashoffset, 0] // Line drawing
})

const obj = { value: 0 }
anime({
  targets: obj,
  value: 100,
  round: 1,
  update: () => console.log(obj.value)
})

const timeline = anime.timeline({
  duration: 750,
  easing: 'easeOutExpo'
})
 
timeline
  .add({
    targets: '.box1',
    translateX: 250
  })
  .add({
    targets: '.box2',
    translateX: 250
  }, '-=500') // Start 500ms before previous animation ends
  .add({
    targets: '.box3',
    translateX: 250
  }, '+=200') // Start 200ms after previous animation ends

anime({
  targets: '.stagger-element',
  translateY: [100, 0],
  opacity: [0, 1],
  delay: anime.stagger(100), // Increase delay by 100ms
  easing: 'easeOutQuad',
  duration: 600
})

anime({
  targets: '.grid-item',
  scale: [0, 1],
  delay: anime.stagger(50, {
    grid: [14, 5],
    from: 'center', // Also: 'first', 'last', index, [x, y]
    axis: 'x'       // Also: 'y', null
  }),
  easing: 'easeOutQuad'
})

anime({
  targets: 'path',
  strokeDashoffset: [anime.setDashoffset, 0],
  easing: 'easeInOutQuad',
  duration: 2000,
  delay: (el, i) => i * 250
})

anime({
  targets: '#morphing-path',
  d: [
    { value: 'M10 80 Q 77.5 10, 145 80' }, // Start shape
    { value: 'M10 80 Q 77.5 150, 145 80' }  // End shape
  ],
  duration: 2000,
  easing: 'easeInOutQuad',
  loop: true,
  direction: 'alternate'
})

const tl = anime.timeline({
  easing: 'easeOutExpo',
  duration: 750
})
 
tl.add({
  targets: '.title',
  translateY: [-50, 0],
  opacity: [0, 1]
})
.add({
  targets: '.subtitle',
  translateY: [-30, 0],
  opacity: [0, 1]
}, '-=500')
.add({
  targets: '.button',
  scale: [0, 1],
  opacity: [0, 1]
}, '-=300')

anime({
  targets: '.element',
  keyframes: [
    { translateX: 100 },
    { translateY: 100 },
    { translateX: 0 },
    { translateY: 0 }
  ],
  duration: 4000,
  easing: 'easeInOutQuad',
  loop: true
})

const animation = anime({
  targets: '.scroll-element',
  translateY: [100, 0],
  opacity: [0, 1],
  easing: 'easeOutQuad',
  autoplay: false
})
 
window.addEventListener('scroll', () => {
  const scrollPercent = window.scrollY / (document.body.scrollHeight - window.innerHeight)
  animation.seek(animation.duration * scrollPercent)
})

import { useEffect, useRef } from 'react'
import anime from 'animejs'
 
function AnimatedComponent() {
  const ref = useRef(null)
 
  useEffect(() => {
    const animation = anime({
      targets: ref.current,
      translateX: 250,
      duration: 800,
      easing: 'easeInOutQuad'
    })
 
    return () => animation.pause()
  }, [])
 
  return <div ref={ref}>Animated</div>
}

export default {
  mounted() {
    anime({
      targets: this.$el,
      translateX: 250,
      duration: 800
    })
  }
}

const path = anime.path('#motion-path')
 
anime({
  targets: '.element',
  translateX: path('x'),
  translateY: path('y'),
  rotate: path('angle'),
  easing: 'linear',
  duration: 2000,
  loop: true
})

anime({
  targets: '.element',
  translateX: 250,
  easing: 'spring(1, 80, 10, 0)', // mass, stiffness, damping, velocity
  duration: 2000
})

anime({
  targets: '.element',
  translateX: 250,
  easing: 'steps(5)',
  duration: 1000
})

anime({
  targets: '.element',
  translateX: 250,
  easing: 'cubicBezier(.5, .05, .1, .3)',
  duration: 1000
})

anime({
  targets: '.element',
  translateX: 250,
  direction: 'alternate', // 'normal', 'reverse', 'alternate'
  loop: true,             // or number of iterations
  easing: 'easeInOutQuad'
})

const animation = anime({
  targets: '.element',
  translateX: 250,
  autoplay: false
})
 
animation.play()
animation.pause()
animation.restart()
animation.reverse()
animation.seek(500) // Seek to 500ms

// ✅ Good: GPU-accelerated
anime({
  targets: '.element',
  translateX: 250,
  opacity: 0.5
})
 
// ❌ Avoid: Triggers layout
anime({
  targets: '.element',
  left: '250px',
  width: '500px'
})

// ✅ Single animation for multiple targets
anime({
  targets: '.multiple-elements',
  translateX: 250
})
 
// ❌ Avoid: Multiple separate animations
elements.forEach(el => {
  anime({ targets: el, translateX: 250 })
})

.animated-element {
  will-change: transform, opacity;
}

const animation = anime({
  targets: '.element',
  translateX: 250,
  autoplay: false // Control manually
})

// ❌ Wrong: No unit
anime({ targets: '.element', width: 200 })
 
// ✅ Correct: Include unit
anime({ targets: '.element', width: '200px' })

// ❌ Wrong: Can't animate transform string
anime({ targets: '.element', transform: 'translateX(250px)' })
 
// ✅ Correct: Individual transform properties
anime({ targets: '.element', translateX: 250 })

// ❌ Wrong: Animation continues after unmount
useEffect(() => {
  anime({ targets: ref.current, translateX: 250 })
}, [])
 
// ✅ Correct: Pause on cleanup
useEffect(() => {
  const anim = anime({ targets: ref.current, translateX: 250 })
  return () => anim.pause()
}, [])

// ❌ Avoid: Animating 1000+ elements
anime({ targets: '.many-items', translateX: 250 }) // 1000+ elements
 
// ✅ Better: Use CSS animations for large sets
// Or reduce element count with virtualization

// ❌ Wrong: Missing offset operator
.add({ targets: '.el2' }, '500') // Treated as absolute time
 
// ✅ Correct: Use relative operators
.add({ targets: '.el2' }, '-=500') // Relative to previous
.add({ targets: '.el3' }, '+=200') // Relative to previous

// ❌ Avoid: Infinite loops drain battery
anime({
  targets: '.element',
  rotate: '1turn',
  loop: true,
  duration: 1000
})
 
// ✅ Better: Use CSS animations for infinite loops
@keyframes rotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}