Buefy is an open source UI component library based on Vue.js and Bulma CSS for quickly building beautiful and easy-to-maintain web applications. Due to the life cycle and componentized nature of Vue.js, Buefy is able to provide some clearly hierarchical components so that users can organize and use their code more clearly.
Buefy already comes with many feature-rich components, including forms, tab bars, modal boxes, sliders, date pickers, carousels, progress bars, dialog boxes, menus and other components, as well as some Auxiliary tools and plug-ins.
In this article, we’ll take a deep dive into Buefy’s main components and how to use them, and provide actionable code examples to help you gain a deeper understanding of this useful component library.
Installation
Before you start using Buefy, you need to install it in your Vue.js application. You can install it via the npm package manager as follows:
npm install buefy
When you have successfully installed Buefy, you need to introduce it in your Vue.js application. You can introduce it directly in a Vue.js component, or introduce it in a global Vue.js instance to make it available throughout your application. The following is a sample code for referencing Buefy in a Vue.js component:
<template> <div> <b-button>Click me</b-button> </div> </template> <script> import Buefy from 'buefy'; import Vue from 'vue'; Vue.use(Buefy); </script>
Here, we have created a simple button component using Buefy and referenced it in the Vue.js instance through the Vue.use() method Got it.
Using
Now that you have Buefy installed and successfully referenced, let’s take a closer look at its main components and how to use them.
Form
The form components in Buefy are very powerful, including input, selection, checkbox, radio button and switch components. Here is a basic form example using Buefy:
<template> <div> <b-field label="Username"> <b-input placeholder="Enter your username"></b-input> </b-field> <b-field label="Password"> <b-input type="password" placeholder="Enter your password"></b-input> </b-field> <b-field label="Gender"> <b-radio-group> <b-radio name="gender">Male</b-radio> <b-radio name="gender">Female</b-radio> </b-radio-group> </b-field> <b-field label="Favorite Colors"> <b-checkbox-group> <b-checkbox name="color">Red</b-checkbox> <b-checkbox name="color">Green</b-checkbox> <b-checkbox name="color">Blue</b-checkbox> </b-checkbox-group> </b-field> <b-field> <b-switch></b-switch> <span>Remember me?</span> </b-field> <b-field> <b-button type="is-primary">Submit</b-button> </b-field> </div> </template> <script> import { BField, BInput, BRadioGroup, BRadio, BCheckboxGroup, BCheckbox, BSwitch, BButton } from 'buefy'; export default { components: { BField, BInput, BRadioGroup, BRadio, BCheckboxGroup, BCheckbox, BSwitch, BButton, }, }; </script>
This form includes components such as input, password, radio and multi-select boxes, switches, and submit buttons. Each component is included in Buefy's form fields to help us create and manage form inputs more easily.
Tab bar
The tab bar is a common UI element that can be used to group page content or group navigation links together. The tab bar in Buefy is very easy to use, just add the appropriate tabs. Here is an example of a basic tab bar using Buefy:
<template> <div> <b-tabs> <b-tab-item label="Home"> Welcome to the homepage </b-tab-item> <b-tab-item label="Profile"> Here is your profile information </b-tab-item> <b-tab-item label="Messages"> You have 15 new messages </b-tab-item> </b-tabs> </div> </template> <script> import { BTabs, BTabItem } from 'buefy'; export default { components: { BTabs, BTabItem, }, }; </script>
This tab bar contains three tabs, titled "Home", "Profile" and "Messages". Each tag has corresponding content that will be displayed based on the selected tag.
Modal box
Modal box can be used to display some prompts, confirmation information or highlight certain content. Modals in Buefy are very flexible and customizable to meet different needs. Here is a basic modal example using Buefy:
<template> <div> <b-button @click="showModal = true">Show Modal</b-button> <b-modal :active.sync="showModal"> <p>Are you sure you want to delete this item?</p> <b-button type="is-danger" @click="deleteItem">Yes, delete it</b-button> <b-button @click="showModal = false">Cancel</b-button> </b-modal> </div> </template> <script> import { BButton, BModal } from 'buefy'; export default { components: { BButton, BModal, }, data() { return { showModal: false, }; }, methods: { deleteItem() { console.log('Item deleted!'); this.showModal = false; }, }, }; </script>
This modal contains a "Show Modal" button that when clicked will show the modal. The modal contains some text, as well as a "Yes, delete it" button and a "Cancel" button. When the user clicks the "Yes, delete it" button, the deleteItem() method will be executed and the modal box will be closed.
Slider
A slider is a useful UI component if you need to adjust numerical values in your application. Sliders in Buefy provide multiple options and custom events so that you can use slider form controllers. Here is a basic slider example using Buefy:
<template> <div> <b-slider v-model="sliderValue" min="0" max="100"></b-slider> <p>{{ sliderValue }}</p> </div> </template> <script> import { BSlider } from 'buefy'; export default { components: { BSlider, }, data() { return { sliderValue: 50, }; }, }; </script>
This slider allows the user to adjust the value between 0 and 100. The position of the slider will move according to the user's drag, and will be in The currently selected value is shown below.
Date Picker
A date picker is a very useful UI component if you need to let the user select a date or date range. Date pickers in Buefy include radio, range and calendar views, as well as options such as custom catalog and week start day. Here is a basic date picker example using Buefy:
<template> <div> <b-datepicker v-model="selectedDate"></b-datepicker> <p>Date selected: {{ selectedDate }}</p> </div> </template> <script> import { BDatepicker } from 'buefy'; export default { components: { BDatepicker, }, data() { return { selectedDate: null, }; }, }; </script>
This date picker allows the user to select a date and the selected date will be displayed below.
Progress Bar
Progress bars can be used to display the progress or status of an operation in an application. Progress bars in Buefy come with a variety of styles and customization options to help you have more control over their appearance and behavior. Here is a basic progress bar example using Buefy:
<template> <div> <b-progress :value="progressValue" :max="maxValue" type="is-primary"></b-progress> <p>Progress: {{ progressValue }}%</p> <b-button @click="increaseProgress">Increase Progress</b-button> </div> </template> <script> import { BProgress, BButton } from 'buefy'; export default { components: { BProgress, BButton, }, data() { return { progressValue: 25, maxValue: 100, }; }, methods: { increaseProgress() { if (this.progressValue < this.maxValue) { this.progressValue += 25; } else { this.progressValue = 0; } }, }, }; </script>
This progress bar will display the current progress, and an "Increase Progress" button that will increase the progress value and will restart when the maximum value is reached.
Conclusion
In this article, we took a deep dive into Buefy’s main components and how to use them, and provided actionable code examples to help you gain a deeper understanding of this library of useful components. Buefy is an easy-to-use and highly customizable UI framework that both beginners and experienced developers can use to create beautiful web applications. Therefore, if you develop web applications using Vue.js, Buefy will be a very useful tool.
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