Mode:
Duration:
1
Coding works best on desktop or with an external keyboard.
Quasar Counter with Toggle Theme - Quasar-framework Typing CST Test
Quasar Counter with Toggle Theme — Quasar-framework Code
Switches between dark and light theme for the counter.
<template>
<q-page class="flex flex-center">
<div class="text-center">
<h2>{{ count }}</h2>
<q-btn color="primary" @click="increment">+</q-btn>
<q-btn color="negative" @click="decrement">-</q-btn>
<q-btn color="secondary" @click="reset">Reset</q-btn>
<q-btn color="warning" class="q-mt-md" @click="toggleTheme">Switch Theme</q-btn>
</div>
</q-page>
</template>
<script setup>
import { ref } from 'vue';
const count = ref(0);
const isDark = ref(false);
const increment = ()=>count.value++;
const decrement = ()=>count.value--;
const reset = ()=>count.value=0;
const toggleTheme = ()=>{
isDark.value = !isDark.value;
document.body.className = isDark.value ? 'bg-dark text-white' : '';
};
</script>
<style>.bg-dark{background:#333;color:#fff;}</style>Quasar-framework Language Guide
Quasar Framework is a Vue.js-based framework that allows developers to build high-performance, responsive web apps, mobile apps (via Cordova/Capacitor), and desktop apps (via Electron) using a single codebase.
Primary Use Cases
- ▸Vue.js web applications (SPA and SSR)
- ▸Progressive Web Apps (PWA)
- ▸Mobile apps via Cordova or Capacitor
- ▸Desktop apps via Electron
- ▸Cross-platform apps from a single codebase
Notable Features
- ▸Prebuilt Vue components
- ▸Responsive grid and layout system
- ▸Multi-platform support (Web, Mobile, Desktop)
- ▸Themeable design with light/dark modes
- ▸CLI tools for scaffolding and building apps
Origin & Creator
Created by Razvan Stoenescu in 2015 to enable multi-platform app development with Vue.js.
Industrial Note
Quasar is widely used for enterprise dashboards, mobile hybrid apps, PWAs, and Electron-based desktop applications built with Vue.js.
Quick Explain
- ▸Quasar provides a comprehensive library of Vue components, utilities, and CLI tools.
- ▸It supports multiple platforms including SPA, SSR, PWA, Mobile, and Desktop apps.
- ▸Quasar emphasizes performance, theming, accessibility, and productivity for Vue.js developers.
Core Features
- ▸Vue components like QBtn, QCard, QTable, QDialog
- ▸Flexbox-based layout utilities (QLayout, QHeader, QFooter, QPage)
- ▸Theming and global style overrides
- ▸Cross-platform build targets (SPA, PWA, Electron, Cordova)
- ▸TypeScript support and Vue 3 compatibility
Learning Path
- ▸Learn Vue.js fundamentals
- ▸Understand Quasar CLI and project structure
- ▸Explore Quasar components and layouts
- ▸Practice multi-platform builds (SPA, PWA, Mobile, Desktop)
- ▸Build full-featured cross-platform apps
Practical Examples
- ▸Responsive navigation using QLayout and QToolbar
- ▸Card-based dashboards with QCard and QTable
- ▸Forms using QInput, QSelect, and QBtn
- ▸Dialogs and modals with QDialog
- ▸Mobile-friendly PWA using Quasar CLI
Comparisons
- ▸Multi-platform support vs Vuetify (Web-only)
- ▸Vue-focused vs React libraries (Fluent UI)
- ▸CLI tooling included vs component-only frameworks
- ▸Responsive and accessible by default
- ▸Best for cross-platform Vue apps
Strengths
- ▸Multi-platform support from a single codebase
- ▸Comprehensive component library
- ▸Built-in CLI and development tooling
- ▸Responsive and mobile-first layouts
- ▸Strong community and active maintenance
Limitations
- ▸Vue-only framework
- ▸Bundle size can be large if unused components are not tree-shaken
- ▸Learning curve for advanced Quasar CLI and config
- ▸Opinionated structure for layouts and pages
- ▸Not ideal for projects not targeting multiple platforms
When NOT to Use
- ▸Projects not using Vue.js
- ▸Minimalistic single-page sites with no multi-platform needs
- ▸Apps with non-Material/Quasar design language
- ▸Projects prioritizing minimal bundle size
- ▸For React or Angular ecosystems
Cheat Sheet
- ▸`QBtn`, `QCard`, `QInput` - common components
- ▸`QLayout`, `QPage`, `QHeader` - layout primitives
- ▸`quasar.conf.js` - main config file
- ▸`dark` or `light` props - theme mode
- ▸`cols='12' md='6'` - responsive columns
FAQ
- ▸Is Quasar free?
- ▸Yes - MIT license.
- ▸Does Quasar support mobile apps?
- ▸Yes - via Cordova or Capacitor.
- ▸Is Quasar responsive?
- ▸Yes - built-in grid, flex, and breakpoints.
- ▸Can I customize Quasar?
- ▸Yes - themes, props, CSS variables, and plugins.
- ▸Which browsers/platforms does Quasar support?
- ▸All modern browsers, iOS/Android (mobile), Windows/macOS/Linux (Electron).
30-Day Skill Plan
- ▸Week 1: Basic components (QBtn, QCard, QInput)
- ▸Week 2: Layouts using QLayout, QPage, QHeader, QFooter
- ▸Week 3: Theming and global configuration
- ▸Week 4: Advanced components (QTable, QDialog, QStepper)
- ▸Week 5: Build SPA, PWA, and mobile apps using Quasar
Final Summary
- ▸Quasar Framework is a multi-platform Vue.js framework.
- ▸Provides responsive, accessible, and prebuilt UI components.
- ▸Supports SPA, SSR, PWA, mobile, and desktop apps.
- ▸Developer-friendly with CLI tooling and theming.
- ▸Ideal for cross-platform enterprise and consumer apps.
Project Structure
- ▸src/ - main Vue source folder
- ▸src/components/ - reusable Quasar components
- ▸src/layouts/ - layouts like QLayout
- ▸quasar.conf.js - main configuration file
- ▸package.json - Quasar and dependencies
Monetization
- ▸Build Quasar templates or dashboards
- ▸Offer Vue app development services
- ▸Create reusable component libraries
- ▸Consulting for multi-platform apps
- ▸Rapid prototyping services
Productivity Tips
- ▸Use prebuilt components for faster development
- ▸Leverage layout system for flexible design
- ▸Use theme variables for consistency
- ▸Lazy-load heavy components
- ▸Use TypeScript for type safety
Basic Concepts
- ▸Components: QBtn, QInput, QCard, QTable, QDialog
- ▸Layouts: QLayout, QHeader, QFooter, QPage, QPageContainer
- ▸Theming: light/dark, color palettes, CSS variables
- ▸Styling: props, classes, scoped CSS, SASS variables
- ▸Responsive design: flex utilities, breakpoints, grid system