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HTML 

              
                <!-- CSS -->
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bulma@0.8.1/css/bulma.min.css">
<!-- Javascript -->
<script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
<!-- Mi Javascript -->
<script defer src="portafolio.js"></script>

<main id="appPortafolio" class="container">
  <!-- Navegador cetegorias -->
  <div class="tabs is-centered">
    <ul>
      <!-- Quita la categoría activa -->
      <li :class="{ 'is-active': !categoriaActiva }">
        <a @click.prevent="cambiarCategoria(false)">Todas</a>
      </li>
      <!-- Generar las el resto de las categorías -->
      <li v-for="categoria in CATEGORIAS" :class="{ 'is-active': categoriaActiva === categoria }">
        <a @click.prevent="cambiarCategoria(categoria)">{{ categoria }}</a>
      </li>
    </ul>
  </div>
  <!-- Fin Navegador categorias -->

  <!-- Proyectos -->
  <section class="columns is-3 is-multiline">
    <!-- Genera todo los proyectos -->
    <article class="column is-one-third" v-for="proyecto in proyectosFiltradosCategoriaYPaginados">
      <div class="media">
        <div class="media-left">
          <figure class="image is-64x64">
            <!-- Imagen -->
            <img :src="proyecto.imagen" alt="Image">
          </figure>
        </div>
        <div class="media-content">
          <div class="content">
            <!-- Título -->
            <h2>{{ proyecto.titulo }}</h2>
            <!-- Descripción -->
            <p>
              {{ proyecto.descripcion }}
            </p>
          </div>
        </div>
      </div>
    </article>
    <!-- Fin Genera todo los proyectos -->
  </section>
  <!-- Fin Proyectos -->

  <!-- Paginador -->
  <nav class="pagination is-centered" role="navigation" aria-label="pagination">
    <ul class="pagination-list">
      <li>
        <a class="pagination-previous" @click.prevent="retrocederPag" :disabled="!puedeRetroceder">Atrás</a>
      </li>
      <li>
        <a class="pagination-next" @click.prevent="avanzarPag" :disabled="!puedeAvanzar">Siguiente</a>
      </li>
    </ul>
  </nav>
  <!-- Fin Paginador -->
</main>
!

CSS 

              
                /* Sin CSS, solo Bulma */
!

JS 

              
                //===
// VARIABLES
//===
const BASE_DE_DATOS = [
  {
    categoria: "Front-End",
    titulo: "METROZ",
    descripcion:
      "Occaecat sunt exercitation laboris et cupidatat amet cupidatat id. Veniam consequat id ullamco qui exercitation nulla magna nisi incididunt ullamco laboris cillum ad. Fugiat enim nostrud voluptate Lorem dolore consectetur veniam culpa duis ea. Officia eu do minim aliquip ea ad. Lorem fugiat eiusmod magna sunt deserunt eu et dolore deserunt velit laborum nostrud id. In proident Lorem ipsum ipsum consequat quis labore incididunt eu sit qui.",
    imagen: "https://source.unsplash.com/64x64?cats&sig=0"
  },
  {
    categoria: "Diseño Web",
    titulo: "OBONES",
    descripcion:
      "Sit ex esse elit voluptate id id excepteur irure deserunt proident ullamco occaecat aute in. Nisi culpa exercitation consectetur mollit qui incididunt irure ullamco reprehenderit elit ex. Culpa in nisi laborum consectetur culpa labore occaecat in elit cillum excepteur incididunt sunt exercitation.",
    imagen: "https://source.unsplash.com/64x64?cats&sig=1"
  },
  {
    categoria: "Back-End",
    titulo: "ZENSUS",
    descripcion:
      "Amet in consequat amet sint deserunt. Id sit ut sit in. Consectetur nisi quis dolore sit quis reprehenderit nisi tempor ex amet laboris laborum. Ipsum labore duis proident quis aute amet.",
    imagen: "https://source.unsplash.com/64x64?cats&sig=2"
  },
  {
    categoria: "Back-End",
    titulo: "QUADEEBO",
    descripcion:
      "Laboris laborum ea velit magna consequat. Dolore veniam mollit et qui reprehenderit commodo velit. Dolor labore do id aute consectetur aliqua dolor minim exercitation non. Occaecat deserunt ut duis sint ullamco proident mollit.",
    imagen: "https://source.unsplash.com/64x64?cats&sig=3"
  },
  {
    categoria: "Diseño Web",
    titulo: "ORBALIX",
    descripcion:
      "Ex ex velit enim elit eu deserunt minim occaecat est laboris veniam ad amet. Occaecat reprehenderit et amet eiusmod eiusmod anim exercitation deserunt. Est consectetur duis incididunt nisi commodo magna amet. Pariatur cillum laborum aute irure aute eu ipsum esse nulla labore minim aliqua magna.",
    imagen: "https://source.unsplash.com/64x64?cats&sig=4"
  },
  {
    categoria: "Front-End",
    titulo: "BRAINCLIP",
    descripcion:
      "Aliqua sunt esse voluptate quis anim irure dolore qui id amet esse excepteur. Id ea dolore qui dolor sit reprehenderit incididunt irure nulla nisi labore sint. Magna anim in anim velit mollit excepteur aliquip eiusmod consequat cupidatat. Ad duis adipisicing mollit occaecat labore nulla et consectetur non proident dolor dolor. Aute aute occaecat aliqua amet sunt sit dolor excepteur enim minim voluptate velit eiusmod. Consequat veniam consectetur officia consectetur ullamco nulla sint cupidatat Lorem mollit laboris nulla consectetur dolore.",
    imagen: "https://source.unsplash.com/64x64?cats&sig=5"
  },
  {
    categoria: "Diseño Web",
    titulo: "BUZZNESS",
    descripcion:
      "Veniam laboris reprehenderit qui aute do do excepteur nisi occaecat occaecat cillum voluptate labore. Enim amet sunt deserunt consequat eiusmod. Nulla laboris laborum ut et voluptate aliquip dolore eu adipisicing incididunt pariatur occaecat cupidatat nulla. Dolore reprehenderit pariatur cupidatat anim consectetur magna do consequat adipisicing dolore ut id. Consectetur dolor adipisicing non ut labore dolor aute laborum aliquip irure. Esse ullamco id anim nisi esse ex deserunt laboris cillum et eiusmod laboris amet aute. Tempor amet amet nostrud laborum voluptate labore aute reprehenderit sit commodo id ut id.",
    imagen: "https://source.unsplash.com/64x64?cats&sig=6"
  },
  {
    categoria: "Back-End",
    titulo: "EXOZENT",
    descripcion:
      "Labore consequat do cupidatat magna mollit consequat aute velit minim. Pariatur dolor excepteur reprehenderit cupidatat ut fugiat ut quis fugiat qui ipsum incididunt sint. Qui amet aliqua mollit culpa esse occaecat veniam irure ad magna incididunt.",
    imagen: "https://source.unsplash.com/64x64?cats&sig=7"
  },
  {
    categoria: "Diseño Web",
    titulo: "GINKOGENE",
    descripcion:
      "Ea id quis consequat culpa in fugiat nostrud Lorem ut dolor pariatur officia mollit. Nostrud mollit nisi culpa incididunt consectetur aute reprehenderit id. In dolor laborum est dolore veniam est do sunt dolore sunt consequat deserunt. In qui et proident dolore dolore est est sit tempor quis. Id qui adipisicing magna sit ut non Lorem anim tempor est amet sint mollit id.",
    imagen: "https://source.unsplash.com/64x64?cats&sig=8"
  },
  {
    categoria: "Front-End",
    titulo: "CIRCUM",
    descripcion:
      "Ad exercitation deserunt do veniam exercitation. Pariatur est nulla esse ad aliqua amet cupidatat do minim voluptate occaecat dolore do. Officia qui minim do officia est enim culpa nostrud qui magna. Deserunt ipsum irure eiusmod laborum aliqua Lorem.",
    imagen: "https://source.unsplash.com/64x64?cats&sig=9"
  }
];

//===
// VUEJS
//===

new Vue({
  el: "#appPortafolio",
  data: {
    proyectos: BASE_DE_DATOS,
    CATEGORIAS: ["Diseño Web", "Front-End", "Back-End"],
    PROYECTOS_POR_PAGINA: 3,
    pagActual: 1,
    categoriaActiva: false
  },
  computed: {
    proyectosFiltradosCategoria: function () {
      return this.proyectos.filter((proyecto) => {
        return (
          proyecto.categoria === this.categoriaActiva || !this.categoriaActiva
        );
      });
    },
    proyectosFiltradosCategoriaYPaginados: function () {
      const CORTE_INICIO = (this.pagActual - 1) * this.PROYECTOS_POR_PAGINA;
      const CORTE_FINAL = CORTE_INICIO + this.PROYECTOS_POR_PAGINA;
      return this.proyectosFiltradosCategoria.slice(CORTE_INICIO, CORTE_FINAL);
    },
    puedeRetroceder: function () {
      return this.pagActual !== 1;
    },
    puedeAvanzar: function () {
      const ULTIMA_PAG = Math.ceil(
        this.proyectosFiltradosCategoria.length / this.PROYECTOS_POR_PAGINA
      );
      return this.pagActual !== ULTIMA_PAG;
    }
  },
  methods: {
    cambiarCategoria: function (nombre) {
      this.categoriaActiva = nombre;
      this.pagActual = 1;
    },
    retrocederPag: function () {
      if (this.puedeRetroceder) {
        this.pagActual = this.pagActual - 1;
      }
    },
    avanzarPag: function () {
      if (this.puedeAvanzar) {
        this.pagActual = this.pagActual + 1;
      }
    }
  }
});
!
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