Fi proġett Vue.js, composables huma funzjonijiet użati biex jerġgħu jintużaw il-loġika u l-istat bejn komponenti differenti. Hawn huma xi Vue.js popolari composables li tista' tuża fil-proġett tiegħek:
useLocalStorage u useSessionStorage
Dawn composables jgħinuk taħżen u timmaniġġja d-dejta fil-lokali storage jew session storage tal-browser.
<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 u useThrottle
Dawn composables jippermettulek tapplika debounce jew throttle għall-funzjonijiet tal-immaniġġjar tal-avvenimenti, u jgħinuk tikkontrolla l-frekwenza tal-eżekuzzjoni tal-azzjoni.
<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
Dan composable jgħinek issegwi l-mistoqsijiet tal-midja biex twettaq azzjonijiet reattivi bbażati fuq id-daqsijiet tal-iskrin.
<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
Dan composable jgħinek timmaniġġja l-kompiti asinkroniċi u timmonitorja l-istatus tagħhom(pendenti, suċċess, żball).
<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
Dan composable jgħinek issegwi avvenimenti fuq elementi DOM u twettaq azzjonijiet korrispondenti.
<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
Dan composable jgħinek taċċessa router l-informazzjoni u l-parametri tal-mistoqsija tal-URL f'applikazzjoni Vue Router.
<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
Dan composable jgħinek timmaniġġja l-azzjonijiet tal-wiri tad-dejta u n-navigazzjoni paġinati.
<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
Dan composable jgħinek issegwi l-intersezzjoni ta 'element mal- viewport, utli biex twettaq azzjonijiet meta element isir viżibbli jew jisparixxi.
<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
Dan composable jgħinek tikkopja dejta lill- clipboard u timmaniġġja l-istat tal-ikkupjar.
<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
Dan composable jgħinek timmaniġġja l-istat tal-mistoqsija tal-URL u taġġorna l-kontenut tal-paġna abbażi tal-mistoqsijiet tal-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>
Jekk jogħġbok innota li biex tuża dawn composables, għandek bżonn tinstalla l- @vueuse/core librerija billi tuża npm jew ħjut. Dawn composables jgħinuk tuża mill-ġdid il-loġika u l-istat komuni fil-proġett Vue.js tiegħek, billi jottimizzaw il-proċess ta 'żvilupp u l-ġestjoni tal-kodiċi.