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Quasar

Developing Vue Apps with the Quasar Library — Skeleton

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Quasar is a popular Vue UI library for developing good looking Vue apps.

In this article, we’ll take a look at how to create Vue apps with the Quasar UI library.

Skeleton

We can add placeholder items that we display when data is loading with the q-skeleton component.

For instance, we can write:

<!DOCTYPE html>
<html>
  <head>
    <link
      href="https://fonts.googleapis.com/css?family=Roboto:100,300,400,500,700,900|Material+Icons"
      rel="stylesheet"
      type="text/css"
    />
    <link
      href="https://cdn.jsdelivr.net/npm/quasar@1.12.13/dist/quasar.min.css"
      rel="stylesheet"
      type="text/css"
    />
  </head>
  <body class="body--dark">
    <script src="https://cdn.jsdelivr.net/npm/vue@^2.0.0/dist/vue.min.js"></script>
    <script src="https://cdn.jsdelivr.net/npm/quasar@1.12.13/dist/quasar.umd.min.js"></script>
    <div id="q-app">
      <q-layout
        view="lHh Lpr lFf"
        container
        style="height: 100vh;"
        class="shadow-2 rounded-borders"
      >
        <div class="q-pa-md row">
          <q-card style="max-width: 300px;">
            <q-item>
              <q-item-section avatar>
                <q-skeleton type="QAvatar"></q-skeleton>
              </q-item-section>

              <q-item-section>
                <q-item-label>
                  <q-skeleton type="text"></q-skeleton>
                </q-item-label>
                <q-item-label caption>
                  <q-skeleton type="text"></q-skeleton>
                </q-item-label>
              </q-item-section>
            </q-item>

            <q-skeleton height="200px" square></q-skeleton>

            <q-card-actions align="right" class="q-gutter-md">
              <q-skeleton type="QBtn"></q-skeleton>
              <q-skeleton type="QBtn"></q-skeleton>
            </q-card-actions>
          </q-card>
        </div>
      </q-layout>
    </div>
    <script>
      new Vue({
        el: "#q-app",
        data: {}
      });
    </script>
  </body>
</html>

We set the type prop to set what kind of skeleton we want to show.

QAvatar shows an avatar placeholder.

QBtn shows a button placeholder.

text shows a text placeholder.

Other options for the type prop include:

  • QSlider
  • rect
  • circle
  • QBadge
  • QChip
  • QToolbar
  • QCheckbox
  • QRadio
  • QToggle
  • QRange
  • QInput

We can add animation effects for q-skeleton components.

We can set it by setting the animation prop:

<!DOCTYPE html>
<html>
  <head>
    <link
      href="https://fonts.googleapis.com/css?family=Roboto:100,300,400,500,700,900|Material+Icons"
      rel="stylesheet"
      type="text/css"
    />
    <link
      href="https://cdn.jsdelivr.net/npm/quasar@1.12.13/dist/quasar.min.css"
      rel="stylesheet"
      type="text/css"
    />
  </head>
  <body class="body--dark">
    <script src="https://cdn.jsdelivr.net/npm/vue@^2.0.0/dist/vue.min.js"></script>
    <script src="https://cdn.jsdelivr.net/npm/quasar@1.12.13/dist/quasar.umd.min.js"></script>
    <div id="q-app">
      <q-layout
        view="lHh Lpr lFf"
        container
        style="height: 100vh;"
        class="shadow-2 rounded-borders"
      >
        <div class="q-pa-md row">
          <q-card flat bordered style="width: 250px;">
            <q-card-section>
              <div class="text-caption">wave</div>
            </q-card-section>

            <q-separator></q-separator>

            <q-card-section>
              <q-skeleton animation="wave"></q-skeleton>
            </q-card-section>
          </q-card>
        </div>
      </q-layout>
    </div>
    <script>
      new Vue({
        el: "#q-app",
        data: {}
      });
    </script>
  </body>
</html>

Other options for the animation prop include:

  • pulse
  • pulse-x
  • pulse-y
  • fade
  • blink
  • none

We can set the size of the q-skeleton with the size , width and height props:

<!DOCTYPE html>
<html>
  <head>
    <link
      href="https://fonts.googleapis.com/css?family=Roboto:100,300,400,500,700,900|Material+Icons"
      rel="stylesheet"
      type="text/css"
    />
    <link
      href="https://cdn.jsdelivr.net/npm/quasar@1.12.13/dist/quasar.min.css"
      rel="stylesheet"
      type="text/css"
    />
  </head>
  <body class="body--dark">
    <script src="https://cdn.jsdelivr.net/npm/vue@^2.0.0/dist/vue.min.js"></script>
    <script src="https://cdn.jsdelivr.net/npm/quasar@1.12.13/dist/quasar.umd.min.js"></script>
    <div id="q-app">
      <q-layout
        view="lHh Lpr lFf"
        container
        style="height: 100vh;"
        class="shadow-2 rounded-borders"
      >
        <div class="q-pa-md">
          <q-skeleton type="circle" size="100px"></q-skeleton>
          <br />
          <q-skeleton width="150px"></q-skeleton>
          <br />
          <q-skeleton height="150px"></q-skeleton>
        </div>
      </q-layout>
    </div>
    <script>
      new Vue({
        el: "#q-app",
        data: {}
      });
    </script>
  </body>
</html>

We can add a border to the skeletons with the bordered prop:

<!DOCTYPE html>
<html>
  <head>
    <link
      href="https://fonts.googleapis.com/css?family=Roboto:100,300,400,500,700,900|Material+Icons"
      rel="stylesheet"
      type="text/css"
    />
    <link
      href="https://cdn.jsdelivr.net/npm/quasar@1.12.13/dist/quasar.min.css"
      rel="stylesheet"
      type="text/css"
    />
  </head>
  <body class="body--dark">
    <script src="https://cdn.jsdelivr.net/npm/vue@^2.0.0/dist/vue.min.js"></script>
    <script src="https://cdn.jsdelivr.net/npm/quasar@1.12.13/dist/quasar.umd.min.js"></script>
    <div id="q-app">
      <q-layout
        view="lHh Lpr lFf"
        container
        style="height: 100vh;"
        class="shadow-2 rounded-borders"
      >
        <div class="q-pa-md">
          <q-skeleton bordered type="circle"></q-skeleton>
          <br />
          <q-skeleton bordered></q-skeleton>
          <br />
          <q-skeleton bordered square></q-skeleton>
        </div>
      </q-layout>
    </div>
    <script>
      new Vue({
        el: "#q-app",
        data: {}
      });
    </script>
  </body>
</html>

Conclusion

We can add placeholders to display when items are loading with the q-skeleton component.

By John Au-Yeung

Web developer specializing in React, Vue, and front end development.

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