Pagination for dynamically generated content - vue.js

Question

Consider the following code.
<template>
<div class="card-container">
<div class="row">
<div class="col s12">
<a #click="addCard()">Add Card</a>
</div>
</div>
<div class="row">
<div v-for="(card, index) in cards" :key="index">
<div class="card-panel">
<span class="card-title">Card Title</span>
<div class="card-action">
<a #click="deleteCard(index)">Delete</a>
</div>
</div>
</div>
</div>
</div>
</template>
<script>
export default {
data: function() {
return {
cards: []
}
},
methods: {
addCard: function() {
this.cards.push({
description: "",
});
},
deleteCard: function(index) {
this.cards.splice(index,1);
}
},
}
</script>
How to make the cards be grouped so that there are 4 rows and each row contains 4 cards? Upon reaching the fourth row the new cards go to the next page.
I thought I could use something like this codepen.io/parths267/pen/bXbWVv
But I have no idea how to get these cards organized in a pagination system.
The view would look something like this

Answer 1

My solution is calculate all cards of current page ahead.
Uses computed property to calculate the relate values which the pagination needs.
In below simple example (it is only one example, you need to add necessary validations as your actual needs, like boundary conditions) :
pages is the page count
cardsOfCurPage is the cards in current page
Then add one data property=pageIndex save the index of current page.
Anyway, keep data-driven in your mind.
List all arguments your pagination needs,
then declare them in data property or computed property.
execute the necessary calculations in computed property or methods.
PS: I don't know which css framework you uses, so I uses bootstrap instead.
Vue.component('v-cards', {
template: `<div class="card-container">
<div class="row">
<div class="col-12">
<a class="btn btn-danger" #click="addCard()">Add Card</a><span>Total Pages: {{pages}} Total Cards: {{cards.length}} Page Size:<input v-model="pageSize" placeholder="Page Size"></span>
</div>
</div>
<div class="row">
<div v-for="(card, index) in cardsOfCurrPage" :key="index" class="col-3">
<div class="card-panel">
<span class="card-title">Card Title: {{card.description}}</span>
<div class="card-action">
<a #click="deleteCard(index)">Delete</a>
</div>
</div>
</div>
</div>
<p><a class="badge" #click="gotoPrev()">Prev</a>- {{pageIndex + 1}} -<a class="badge" #click="gotoNext()">Next</a></p>
</div>`,
data: function() {
return {
cards: [],
pageSize: 6,
pageIndex: 0
}
},
computed: {
pages: function () {
return Math.floor(this.cards.length / this.pageSize) + 1
},
cardsOfCurrPage: function () {
return this.cards.slice(this.pageSize * this.pageIndex, this.pageSize * (this.pageIndex+1))
}
},
methods: {
addCard: function() {
this.cards.push({
description: this.cards.length,
});
},
deleteCard: function(index) {
this.cards.splice(index,1);
},
gotoPrev: function() {this.pageIndex -=1},
gotoNext: function() {this.pageIndex +=1}
},
})
new Vue({
el: '#app',
data() {
return {
}
}
})
<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.17/vue.js"></script>
<link href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.0/css/bootstrap.min.css" rel="stylesheet" />
<div id="app">
<v-cards></v-cards>
</div>