Teleport in Vue.js

<template>
  <div class="component">
    <button @click="showModal = true">Open Modal</button>
    
    <Teleport to="body">
      <div v-if="showModal" class="modal">
        <p>I'm rendered in body!</p>
        <button @click="showModal = false">Close</button>
      </div>
    </Teleport>
  </div>
</template>

<script setup>
import { ref } from 'vue'

const showModal = ref(false)
</script>

<style scoped>
.modal {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: white;
  padding: 20px;
  z-index: 1000;
}
</style>

<!-- By ID -->
<Teleport to="#modal-container">
  <div>Content</div>
</Teleport>

<!-- By class -->
<Teleport to=".modal-wrapper">
  <div>Content</div>
</Teleport>

<!-- By tag -->
<Teleport to="body">
  <div>Content</div>
</Teleport>

<script setup>
import { ref, onMounted } from 'vue'

const targetElement = ref(null)

onMounted(() => {
  targetElement.value = document.getElementById('custom-container')
})
</script>

<template>
  <Teleport :to="targetElement" v-if="targetElement">
    <div>Content</div>
  </Teleport>
</template>

<template>
  <Teleport to="body" :disabled="!isMobile">
    <div class="modal">
      On mobile - in body, on desktop - here
    </div>
  </Teleport>
</template>

<script setup>
import { ref, onMounted } from 'vue'

const isMobile = ref(false)

onMounted(() => {
  isMobile.value = window.innerWidth < 768
})
</script>

<!-- Component1.vue -->
<Teleport to="#notifications">
  <div>Notification 1</div>
</Teleport>

<!-- Component2.vue -->
<Teleport to="#notifications">
  <div>Notification 2</div>
</Teleport>

<!-- index.html -->
<div id="app"></div>
<div id="notifications"></div>

<!-- Modal.vue -->
<template>
  <Teleport to="body">
    <Transition name="modal">
      <div v-if="isOpen" class="modal-overlay" @click="close">
        <div class="modal-content" @click.stop>
          <button class="modal-close" @click="close">×</button>
          <slot />
        </div>
      </div>
    </Transition>
  </Teleport>
</template>

<script setup>
defineProps({
  isOpen: Boolean
})

const emit = defineEmits(['close'])

function close() {
  emit('close')
}
</script>

<style scoped>
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal-content {
  background: white;
  padding: 20px;
  border-radius: 8px;
  max-width: 500px;
  position: relative;
}

.modal-close {
  position: absolute;
  top: 10px;
  right: 10px;
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
}
</style>

<template>
  <button @click="isModalOpen = true">Open</button>
  
  <Modal :is-open="isModalOpen" @close="isModalOpen = false">
    <h2>Title</h2>
    <p>Modal content</p>
  </Modal>
</template>

<script setup>
import { ref } from 'vue'
import Modal from './Modal.vue'

const isModalOpen = ref(false)
</script>

<template>
  <div class="parent" style="position: relative; overflow: hidden">
    <div class="modal" style="position: fixed">
      <!-- May be cut off due to overflow: hidden -->
    </div>
  </div>
</template>

<template>
  <div class="parent" style="position: relative; overflow: hidden">
    <Teleport to="body">
      <div class="modal" style="position: fixed">
        <!-- Always displays correctly -->
      </div>
    </Teleport>
  </div>
</template>

<!-- Wrong -->
<Teleport to="#non-existent">
  <div>Error!</div>
</Teleport>

<!-- Correct -->
<Teleport to="body">
  <div>Works!</div>
</Teleport>

<script setup>
import { provide } from 'vue'

provide('theme', 'dark')
</script>

<template>
  <Teleport to="body">
    <!-- inject still works! -->
    <ChildComponent />
  </Teleport>
</template>