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Raziskovanje 10 bistvenih Vue.js Composables za vaše projekte

V projektu Vue.js composables se funkcije uporabljajo za ponovno uporabo logike in stanja med različnimi komponentami. Tukaj je nekaj priljubljenih Vue.js composables, ki jih lahko uporabite v svojem projektu:

useLocalStorage in useSessionStorage

Ti composables vam pomagajo pri shranjevanju in upravljanju podatkov v lokalnem brskalniku storage ali session storage v brskalniku.

<template>  
  <div>  
    <p>Last visited: {{ lastVisited }}</p>  
  </div>  
</template>  
  
<script>  
import { useLocalStorage } from '@vueuse/core';  
  
export default {  
  setup() {  
    const lastVisited = useLocalStorage('last_visited', new Date());  
  
    return {  
      lastVisited,  
    };  
  },  
};  
</script>

useDebounce in useThrottle

Ti composables vam omogočajo, da uporabite odboj ali dušilec za funkcije za obravnavo dogodkov, kar pomaga nadzorovati pogostost izvajanja dejanj.

<template>  
  <div>  
    <input v-model="searchQuery" @input="handleSearch" />  
    <p>Search results: {{ searchResults }}</p>  
  </div>  
</template>  
  
<script>  
import { ref } from 'vue';  
import { useDebounce } from '@vueuse/core';  
  
export default {  
  setup() {  
    const searchQuery = ref('');  
    const searchResults = ref([]);  
  
    const handleSearch = useDebounce(() => {  
      // Perform search based on searchQuery  
      // Update searchResults  
    }, 300);  
  
    return {  
      searchQuery,  
      searchResults,  
      handleSearch,  
    };  
  },  
};  
</script>

useMediaQueries

To composable vam pomaga slediti medijskim poizvedbam za izvajanje odzivnih dejanj glede na velikost zaslona.

<template>  
  <div>  
    <p>Current screen size: {{ screenSize }}</p>  
  </div>  
</template>  
  
<script>  
import { useMediaQueries } from '@vueuse/core';  
  
export default {  
  setup() {  
    const { screenSize } = useMediaQueries({  
      mobile: 'screen and(max-width: 640px)',  
      tablet: 'screen and(max-width: 1024px)',  
      desktop: 'screen and(min-width: 1025px)',  
    });  
  
    return {  
      screenSize,  
    };  
  },  
};  
</script>

useAsync

To composable vam pomaga upravljati asinhrone naloge in spremljati njihov status(v teku, uspeh, napaka).

<template>  
  <div>  
    <button @click="fetchData">Fetch Data</button>  
    <p v-if="status === 'pending'">Loading...</p>  
    <p v-if="status === 'success'">Data loaded: {{ data }}</p>  
    <p v-if="status === 'error'">Error loading data.</p>  
  </div>  
</template>  
  
<script>  
import { ref } from 'vue';  
import { useAsync } from '@vueuse/core';  
  
export default {  
  setup() {  
    const fetchData = async() => {  
      // Simulate fetching data  
      const response = await fetch('https://api.example.com/data');  
      const data = await response.json();  
      return data;  
    };  
  
    const { execute, value: data, status } = useAsync(fetchData);  
  
    return {  
      fetchData: execute,  
      data,  
      status,  
    };  
  },  
};  
</script>

useEventListener

To composable vam pomaga slediti dogodkom na elementih DOM in izvajati ustrezna dejanja.

<template>  
  <div>  
    <p>Mouse position: {{ mouseX }}, {{ mouseY }}</p>  
  </div>  
</template>  
  
<script>  
import { ref } from 'vue';  
import { useEventListener } from '@vueuse/core';  
  
export default {  
  setup() {  
    const mouseX = ref(0);  
    const mouseY = ref(0);  
  
    useEventListener('mousemove',(event) => {  
      mouseX.value = event.clientX;  
      mouseY.value = event.clientY;  
    });  
  
    return {  
      mouseX,  
      mouseY,  
    };  
  },  
};  
</script>

useRouter

To composable vam pomaga dostopati router do informacij in parametrov poizvedbe URL v Vue Router aplikaciji.

<template>  
  <div>  
    <p>Current route: {{ currentRoute }}</p>  
  </div>  
</template>  
  
<script>  
import { useRoute } from 'vue-router';  
  
export default {  
  setup() {  
    const route = useRoute();  
    const currentRoute = route.fullPath;  
  
    return {  
      currentRoute,  
    };  
  },  
};  
</script>

usePagination

To composable vam pomaga pri upravljanju prikazovanja podatkov s strani in navigacijskih dejanj.

<template>  
  <div>  
    <ul>  
      <li v-for="item in currentPageData":key="item.id">{{ item.name }}</li>  
    </ul>  
    <button @click="previousPage":disabled="currentPage === 1">Previous</button>  
    <button @click="nextPage":disabled="currentPage === totalPages">Next</button>  
  </div>  
</template>  
  
<script>  
import { ref, computed } from 'vue';  
import { usePagination } from '@vueuse/core';  
  
export default {  
  setup() {  
    const data = ref([...]); // Paginated data  
    const itemsPerPage = 10;  
    const currentPage = ref(1);  
  
    const { currentPageData, nextPage, previousPage, totalPages } = usePagination(data, itemsPerPage, currentPage);  
  
    return {  
      currentPageData,  
      nextPage,  
      previousPage,  
      currentPage,  
      totalPages,  
    };  
  },  
};  
</script>

useIntersectionObserver

To composable vam pomaga slediti presečišču elementa z viewport, kar je uporabno za izvajanje dejanj, ko element postane viden ali izgine.

<template>  
  <div>  
    <div ref="observedElement">Observed Element</div>  
    <p v-if="isIntersecting">Element is intersecting!</p>  
  </div>  
</template>  
  
<script>  
import { ref } from 'vue';  
import { useIntersectionObserver } from '@vueuse/core';  
  
export default {  
  setup() {  
    const observedElement = ref(null);  
    const { isIntersecting } = useIntersectionObserver(observedElement, {});  
  
    return {  
      observedElement,  
      isIntersecting,  
    };  
  },  
};  
</script>

useClipboard

To composable vam pomaga kopirati podatke v clipboard in upravljati stanje kopiranja.

<template>  
  <div>  
    <p>Text to copy: {{ textToCopy }}</p>  
    <button @click="copyText">Copy Text</button>  
    <p v-if="copied">Copied to clipboard!</p>  
  </div>  
</template>  
  
<script>  
import { ref } from 'vue';  
import { useClipboard } from '@vueuse/core';  
  
export default {  
  setup() {  
    const textToCopy = ref('Hello, Vue.js!');  
    const { copy, copied } = useClipboard();  
  
    const copyText =() => {  
      copy(textToCopy.value);  
    };  
  
    return {  
      textToCopy,  
      copyText,  
      copied,  
    };  
  },  
};  
</script>

useRouteQuery

To composable vam pomaga upravljati stanje poizvedbe URL in posodobiti vsebino strani na podlagi poizvedb URL.

<template>  
  <div>  
    <input v-model="searchQuery" />  
    <button @click="updateQuery">Search</button>  
    <p>Search results: {{ searchResults }}</p>  
  </div>  
</template>  
  
<script>  
import { ref } from 'vue';  
import { useRouter, useRouteQuery } from '@vueuse/core';  
  
export default {  
  setup() {  
    const router = useRouter();  
    const searchQuery = ref('');  
    const { search } = useRouteQuery();  
    const searchResults = ref([]);  
  
    const updateQuery =() => {  
      router.push({ query: { search: searchQuery.value } });  
      // Perform search based on searchQuery and update searchResults  
    };  
  
    return {  
      searchQuery,  
      searchResults,  
      updateQuery,  
    };  
  },  
};  
</script>

Upoštevajte, da composables morate za uporabo teh namestiti @vueuse/core knjižnico z uporabo npm ali yarn. Ti composables vam pomagajo ponovno uporabiti skupno logiko in stanje v vašem projektu Vue.js ter optimizirati razvojni proces in upravljanje kode.