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Developing Vue Apps with the Quasar Library — Rating Control Options

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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.

Rating Control Color

We can set the color of each icon with the color-selected 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"
      >
        <q-rating
          v-model="ratingModel"
          color="grey"
          size="3.5em"
          :color-selected="ratingColors"
        >
        </q-rating>
      </q-layout>
    </div>
    <script>
      new Vue({
        el: "#q-app",
        data: {
          ratingModel: 4.5,
          ratingColors: [
            "light-green-3",
            "light-green-6",
            "green",
            "green-9",
            "green-10"
          ]
        }
      });
    </script>
  </body>
</html>

We can set a different icon for half scores with he icon-half component:

<!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"
      >
        <q-rating
          v-model="ratingModel"
          size="3.5em"
          color="yellow"
          icon="star_border"
          icon-selected="star"
          icon-half="star_half"
        >
        </q-rating>
      </q-layout>
    </div>
    <script>
      new Vue({
        el: "#q-app",
        data: {
          ratingModel: 4.5
        }
      });
    </script>
  </body>
</html>

We can disable dimming for unselected icons with the no-dimming 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"
      >
        <q-rating
          v-model="ratingModel"
          size="3.5em"
          color="yellow"
          icon="star_border"
          icon-selected="star"
          icon-half="star_half"
          no-dimming
        >
        </q-rating>
      </q-layout>
    </div>
    <script>
      new Vue({
        el: "#q-app",
        data: {
          ratingModel: 3.5
        }
      });
    </script>
  </body>
</html>

Rating Tooltip

We can set the tooltip for each rating by populating the slots for the tooltip content:

<!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"
      >
        <q-rating v-model="ratingModel" size="3.5em" :max="3">
          <template v-slot:tip-1>
            <q-tooltip>Not bad</q-tooltip>
          </template>
          <template v-slot:tip-2>
            <q-tooltip>Good</q-tooltip>
          </template>
          <template v-slot:tip-3>
            <q-tooltip>Very good</q-tooltip>
          </template>
        </q-rating>
      </q-layout>
    </div>
    <script>
      new Vue({
        el: "#q-app",
        data: {
          ratingModel: 2
        }
      });
    </script>
  </body>
</html>

tip-1’s content is shown when we hover over the left star. tip-2 ‘s content is show when we hover over the 2nd to left star, etc.

Readonly and Disable

We can disable rating selection with the readonly or disable 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"
      >
        <q-rating v-model="ratingModel" size="3.5em" :max="3" readonly>
        </q-rating>
      </q-layout>
    </div>
    <script>
      new Vue({
        el: "#q-app",
        data: {
          ratingModel: 2
        }
      });
    </script>
  </body>
</html>

Conclusion

We can add a rating component with various options into our Vue app with Quasar.

By John Au-Yeung

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

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