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0.4.1 • Public • Published


Vue 3 composition API hook function to reactively paginate data and arrange paginator buttons. Completely renderless.



$ npm install vue-use-paginator

Basic Setup

<script setup lang="ts">
import usePaginator from 'vue-use-paginator'

const {
} = usePaginator({
  pageSize: 10,
  numItems: 70,
  numButtons: 5,


Hook API

Function usePaginator returns an object of type IPagination which contains the following reactive data plus some convenience functions. You can initialize page, pageSize, numItems and numButtons by passing an object of type IOptions. Otherwise, default initial values will be used.

Name Type Description
page Ref<number> Current active page (default initial value: 1)
pageSize Ref<number> Size of each page (default initial value: 5)
numItems Ref<number> Total number of items to paginate (default initial value: 0)
numButtons Ref<number> Number of paginator buttons to display (default initial value: 5)
numPages ComputedRef<number> Total number of pages
slice ComputedRef<[number, number]> Tuple containing start and end index delimiting the currently active page (0 based, end index is exclusive). For example, given you are on page 2, pageSize is 10 and numItems is greater than or equal to 20, slice will be [10, 20].
buttons ComputedRef<IPaginatorButton[]> Array of objects usable for displaying paginator buttons (details below)
hasPrev ComputedRef<boolean> Whether the currently active page is the first page
hasNext ComputedRef<boolean> Whether the currently active page is the last page
goPrev () => number Go to next page
goNext () => number Go to previous page
goStart () => 1 Go to first page
goEnd () => number Go to last page
  • page, pageSize, numItems, as well as numButtons are writable refs that will cause the other reactive properties to adjust when changed. Once you know how many items to paginate, you need to set numItems at least.
  • You can move to another page by either calling goPrev, goNext, goStart, goEnd, or by assigning to page directly. Note that assigning a value outside of 1 and numPages will be ignored.

Paginator buttons

When displaying paginator buttons, you often don't have enough slots for each page and therefore need to use a placeholder like '...'. Calculating the positions of these placeholders is not trivial. Luckily, buttons is an array of IPaginatorButton where each item contains the following properties to help you out.

Name Type Description
page number The page to navigate to when clicking this button
active boolean Whether this button shows the currently active page
ellipsis boolean Whether this button is a placeholder for omitted pages

Template example

Here is a minimal example how you could write your paginator markup.

  <li :class="{ disabled: !hasPrev }" @click="goStart">
    {{ '<<' }}
  <li :class="{ disabled: !hasPrev }" @click="goPrev">
    {{ '<' }}
    v-for="button in buttons"
    :class="{ 'current-page': }"
    @click="page ="
    {{ button.ellipsis ? '...' : }}
  <li :class="{ disabled: !hasNext }" @click="goNext">
    {{ '>' }}
  <li :class="{ disabled: !hasNext }" @click="goEnd">
    {{ '>>' }}

Notice how certain classes and texts are set based on the values of hasPrev, hasNext, and button.ellipsis. How you style these elements is completely up to you.

API integration

This library doesn't make any assumptions about whether you paginate in the frontend or call a paginated endpoint.

If you paginate in the frontend, just assign the length of your collection to numItems and use the values from slice to slice out the items to display for your current page.

If you call a paginated endpoint, it needs to tell you the total number of items in order to set numItems. You can then use slice or page/pageSize to fetch a page. You will normally want to set up a watcher in order to fetch a new page when page or pageSize changes.

watch([page, pageSize], ([newPage, newPageSize]) => {
  fetchPage(newPage, newPageSize);



interface IOptions {
  page?: number | Ref<number>
  pageSize?: number | Ref<number>
  numItems?: number | Ref<number>
  numButtons?: number | Ref<number>

interface IPagination {
  page: Ref<number>
  pageSize: Ref<number>
  numItems: Ref<number>
  numButtons: Ref<number>
  numPages: ComputedRef<number>
  slice: ComputedRef<[number, number]>
  buttons: ComputedRef<IPaginatorButton[]>
  hasPrev: ComputedRef<boolean>
  hasNext: ComputedRef<boolean>
  goPrev: () => number
  goNext: () => number
  goStart: () => 1
  goEnd: () => number

interface IButton {
  page: number

interface IPageButton extends IButton {
  active: boolean
  ellipsis: false

interface IEllipsisButton extends IButton {
  active: false
  ellipsis: true

type IPaginatorButton = IPageButton | IEllipsisButton

Importing Types

import { IOptions, IPagination, IPaginatorButton } from 'vue-use-paginator'

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