Vue css modules example

Vue css modules example

Vue css modules example Learn Development at Frontend Masters. So CSS Modules is not an official spec or an implementation in the browser but rather a process in a build step with the help of Webpack or Browserify that changes class names and selectors to be scoped i. What does this look like and why do it? A class is applied in HTML:. The browser understands both those file formats. CSS Modules takes a different approach. During our build step, the compiler would search through that styles. The class attribute and selector. As Hugo Giraudel said in his tutorial on the subject:. This is what is meant by styles being scoped. They are scoped to particular templates. If we have a buttons. Why on earth would we want to work this way? This approach is designed to fix the problem of the global scope in CSS. Have you ever been tempted by a lack of time or resources to simply write CSS as quickly as possible, without considering what else you might affect? Have you ever slapped some random bits and junk at the bottom of a stylesheet, intending to get around to organizing it but never do? Have you ever wondered if you could get rid of some styles without breaking something? Wondered if the styles stood on their own or depended on other things? Or overwrote styles elsewhere? These are questions that can lead to big headaches, bloated project deadlines and sad, wistful looks out of the window. With CSS Modules, and the concept of local scope by defaultthis problem is avoided. In that file we might have the following:. This is for two reasons:. Local scope — Say we have a class like. In another we use the exact same class. Even if a module imports both stylesheets, then it has a custom name which our build process makes specifically for that class. The next article in this series will look at how to get a project up and running with Webpack and CSS Modules.

Vuejs css modules

GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. If nothing happens, download GitHub Desktop and try again. If nothing happens, download Xcode and try again. If nothing happens, download the GitHub extension for Visual Studio and try again. Made to work with CSS Modules! Note, this loader is not limited to SASS resources. It supposedly works with less, post-css, etc. Create your file or files with resources, which are snippets of Sass that you want available to places like CSS modules Sass:. Apply loader in webpack config v1. Note that sass-resources-loader will resolve your files in order. If you want your variables to be accessed across all of your mixins you should specify them in first place. If you are using vue-cli 3, you need create a vue. Then, add the following code :. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the code of conduct. See Contributing to get started. Skip to content. Dismiss Join GitHub today GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. Sign up. SASS resources e. Also works with less, post-css, etc. JavaScript Branch: master. Find file. Sign in Sign up. Go back. Launching Xcode If nothing happens, download Xcode and try again. Latest commit Fetching latest commit…. Supports Webpack 4. Subscribers will also have access to exclusive contentincluding tips and examples.

Vue css modules vs scoped

All compiled CSS are processed by css-loaderwhich parses url and resolves them as module requests. This means you can refer to assets using relative paths based on the local file structure. See Static Asset Handling for more details. If you did not do so, the internal webpack config is still pre-configured to handle all of them. You just need to manually install the corresponding webpack loaders:. Note that when using Dart Sass, synchronous compilation is twice as fast as asynchronous compilation by default, due to the overhead of asynchronous callbacks. To avoid this overhead, you can use the fibers package to call asynchronous importers from the synchronous code path. To enable this, simply install fibers as a project dependency:. Please also be aware, as it's a native module, there may be compatibility issues vary on the OS and build environment. In that case, please run npm uninstall -D fibers to fix the problem. If you want to automatically import files for colors, variables, mixins Here is an example for stylus that imports. You can also use the vue-cli-plugin-style-resources-loader. You can configure PostCSS via. The autoprefixer plugin is enabled by default. To configure the browser targets, use the browserslist field in package. With autoprefixer enabled by default, you should always use only non-prefixed CSS rules. If you want to drop the. If you wish to customize the generated CSS modules class names, you can do so via css. All css-loader options are supported here, for example localIdentName and camelCase :. Sometimes you may want to pass options to the pre-processor's webpack loader. You can do that using the css. This is preferred over manually tapping into specific loaders using chainWebpackbecause these options need to be applied in multiple locations where the corresponding loader is used. Referencing Assets All compiled CSS are processed by css-loaderwhich parses url and resolves them as module requests. You just need to manually install the corresponding webpack loaders: Sass npm install -D sass-loader sass Less npm install -D less-loader less Stylus npm install -D stylus-loader stylus.

Vue-cli css modules

Vue css modules example Due to using a single state tree, all state of our application is contained inside one big object. However, as our application grows in scale, the store can get really bloated. To help with that, Vuex allows us to divide our store into modules. Each module can contain its own state, mutations, actions, getters, and even nested modules - it's fractal all the way down:. Inside a module's mutations and getters, the first argument received will be the module's local state. Similarly, inside module actions, context. If you want your modules to be more self-contained or reusable, you can mark it as namespaced with namespaced: true. When the module is registered, all of its getters, actions and mutations will be automatically namespaced based on the path the module is registered at. For example:. Namespaced getters and actions will receive localized gettersdispatch and commit. In other words, you can use the module assets without writing prefix in the same module. Toggling between namespaced or not does not affect the code inside the module. If you want to use global state and getters, rootState and rootGetters are passed as the 3rd and 4th arguments to getter functions, and also exposed as properties on the context object passed to action functions. If you want to register global actions in namespaced modules, you can mark it with root: true and place the action definition to function handler. When binding a namespaced module to components with the mapStatemapGettersmapActions and mapMutations helpers, it can get a bit verbose:. In such cases, you can pass the module namespace string as the first argument to the helpers so that all bindings are done using that module as the context. The above can be simplified to:. Furthermore, you can create namespaced helpers by using createNamespacedHelpers. It returns an object having new component binding helpers that are bound with the given namespace value:. You may care about unpredictable namespacing for your modules when you create a plugin that provides the modules and let users add them to a Vuex store. Your modules will be also namespaced if the plugin users add your modules under a namespaced module. To adapt this situation, you may need to receive a namespace value via your plugin option:. You can register a module after the store has been created with the store. The module's state will be exposed as store. Dynamic module registration makes it possible for other Vue plugins to also leverage Vuex for state management by attaching a module to the application's store. For example, the vuex-router-sync library integrates vue-router with vuex by managing the application's route state in a dynamically attached module. You can also remove a dynamically registered module with store. Note you cannot remove static modules declared at store creation with this method. It may be likely that you want to preserve the previous state when registering a new module, such as preserving state from a Server Side Rendered app. You can achieve this with preserveState option: store. When you set preserveState: truethe module is registered, actions, mutations and getters are added to the store, but the state is not.


Some information might be out of date, as I don't always update older articles. Today Adam released 0. The tailwind utilities directive no longer has to be added into every Vue component, but you can still use the apply directive in your components to write your CSS classes. I've changed the repository mentioned in the article with this pull request. I've also striked through and edited some of the text parts, which are no longer important. One part of my day job is to write JavaScript widgets. Our customers can place widgets in their websites to allow their users to signup for certain services. We've decided to use Vue as we've used it on a smaller scale in other parts of our projects and were very happy with it. One issue we've always faced over the years is scoping and namespacing CSS. Of course we could use! This solved some of the CSS collision problems but it was quite cumbersome to use the prefix in the code. While evaluating our next tech stack I discovered "scoped CSS". Right there in the documentation I discovered CSS modules and started reading a lot more about it. The widgets we create are actually very powerful, applications. CSS Modules is best described in this quote:. During your build process CSS Modules will parse it, convert it into a JavaScript object and change the class name to a random string. Depending on your configuration the final rendered HTML will look like this. By replacing the. If a parent site also implements a. For example if you have a color. If you use. If we take our. I've used other utility based CSS frameworks before, like Tachyons or BassCSSbut none of the them provided a great toolset to move your utility classes to components. Tailwind is built with PostCSS and comes with a handy apply directive to build components out of utility classes. What I especially like about Tailwind is its configuration file. In it you define your colors, spacing levels and font weights. I think it's a great way to keep the CSS of a project maintainable by just using the apply directive and the colors defined in your configuration file. No longer you have to remember which HEX-colors is your primary one or use different magic numbers for your paddings and margins. You just use apply text-primary and your good to go. If you want to know more about utility based CSS frameworks I highly recommend reading Adam Wathans article about that topic. So how do we get all the parts together? Let's create a very simple Vue application. As I often work with Laravel and I would like to keep this post a short as possible, I will use Laravel Mix to keep my webpack configuration simple. You can see the following changes also in this pull request on GitHub. This will allow us to create a dev build npm run deva production build npm run prod and watch for changes npm run watch. We do this by adding a postcss. At the time of writing this article the current version of Tailwind was 0. Things might change the time your reading this. The documentation tells us to create a new config file:.

Import css modules

You can edit this file directly with your editor of choice to change the saved options. See the Browser Compatibility section in guide. You can also use the vue field in package. Deprecated since Vue CLI 3. This is the equivalent of webpack's output. By default, Vue CLI assumes your app will be deployed at the root of a domain, e. If your app is deployed at a sub-path, you will need to specify that sub-path using this option. The value can also be set to an empty string '' or a relative path. This allows the built bundle to be deployed under any public path, or used in a file system based environment like a Cordova hybrid app. This value is also respected during development. If you want your dev server to be served at root instead, you can use a conditional value:. The directory where the production build files will be generated in when running vue-cli-service build. Note the target directory will be removed before building this behavior can be disabled by passing --no-clean when building. A directory relative to outputDir to nest generated static assets js, css, img, fonts under. Specify the output path for the generated index. Can also be an absolute path. By default, generated static assets contains hashes in their filenames for better caching control. Build the app in multi-page mode. Each "page" should have a corresponding JavaScript entry file. The value should be an object where the key is the name of the entry, and the value is either:. When building in multi-page mode, the webpack config will contain different plugins there will be multiple instances of html-webpack-plugin and preload-webpack-plugin. Make sure to run vue inspect if you are trying to modify the options for those plugins. Whether to perform lint-on-save during development using eslint-loader. When set to true or 'warning'eslint-loader will emit lint errors as warnings. By default, warnings are only logged to the terminal and does not fail the compilation, so this is a good default for development. To make lint errors show up in the browser overlay, you can use lintOnSave: 'default'. This will force eslint-loader to actually emit errors. Setting it to 'error' will force eslint-loader to emit warnings as errors as well, which means warnings will also show up in the overlay. When lintOnSave is a truthy value, eslint-loader will be applied in both development and production.

Vue import css

CSS frameworks are great for many reasons; code is more universally understood, web applications are easier to maintain, and prototyping becomes less of an extra step and more part of the development process. Generally speaking, integrating each framework is generally the same so the installation process will work with either Bootstrap, Bulma, or Foundation. However, best practices apply to all. This is intended to be a general overview and not as a robust guide. If you're interested in learning Vue in a comprehensive and structured way, I highly recommend you try The Vue. Learning from a premium resource like that is a serious investment in yourself. Plus, this is an affiliate linkso if you purchase the course you help Alligator. After you initialize a new Vue project, download Bootstrap 4 with npm. If your application fails to build, just install the popper. After that, it should build properly. Congrats, Bootstrap 4 is installed! After Bulma is downloaded, open up your main. No extra steps. Bulma is ready to use in your Vue. The Bulma Docs are a great resources to get you started. Foundation is a framework created by the fine folks at Zurb. Foundation has two frameworks; one for email and one for websites. Install Foundation Sites and import it into your main. Down to their core, these three frameworks are very similar: they all work with rows and columns. This grid lets you easily change the width of your columns by device width just by adding or changing the classes that are appended to an element. As stated before, the examples below are using Bootstrap 4. However, these best practices with row-column based frameworks apply to all. Each of these frameworks have been carefully crafted for ease-of-use, scalability, and customization. Instead of creating your own button with its own classes, just create a button using Bootstrap, Bulma, or Foundation. When working with any CSS framework and Vue. What do I mean by that? This navigation may be intended to be used in both the header and the footer. Both of which should look very different but contain the same information. CSS Frameworks make your life as a developer much easier. Bootstrap, Bulma, and Foundation are just the three widely used frameworks right now. Tweet It.

Vue css variables

Sponsor webpack and get apparel from the official shop! All proceeds go to our open collective! In modular programmingdevelopers break programs up into discrete chunks of functionality called a module. Each module has a smaller surface area than a full program, making verification, debugging, and testing trivial. Well-written modules provide solid abstractions and encapsulation boundaries, so that each module has a coherent design and a clear purpose within the overall application. On the web, however, support for modules has been slow to arrive. Multiple tools exist that support modular JavaScript on the web, with a variety of benefits and limitations. In contrast to Node. A few examples are:. Loaders describe to webpack how to process non-JavaScript modules and include these dependencies into your bundles. The webpack community has built loaders for a wide variety of popular languages and language processors, including:. And many others! Overall, webpack provides a powerful and rich API for customization that allows one to use webpack for any stackwhile staying non-opinionated about your development, testing, and production workflows. For a full list, see the list of loaders or write your own. Print Section. Dependency Graph. Targets Usage Multiple Targets Resources. You are reading webpack 5 documentation. Change here to: webpack 4 documentation. Edit Document Print Document. Modules In modular programmingdevelopers break programs up into discrete chunks of functionality called a module. What is a webpack Module In contrast to Node. An image url in a stylesheet url Supported Module Types webpack supports modules written in a variety of languages and preprocessors, via loaders.

Nuxt css modules

Vue css modules example In one of my earlier articles, I wrote about how to use functional Vue. This way, functional components are perfect for creating simple base components. In this article, we take a look at how we can simplify and generalize the process of creating new functional base components by automatically creating new Vue. Above, you can see a usage example for how we can utilize makeCssModuleComponent to create a functional base component directly from a CSS module file. All the boilerplate code is generated automatically. Furthermore, all the component props we need to modify the styling of our component, are dynamically generated based on the modifier and state classes defined in the BaseCard. If you want to take a look at the final code, you can check out the full code on GitHub. You can also take a look at a live demo hosted on Netlify. This means we have to find another way to reuse the boilerplate code we can see in the example beneath in other components without having to repeat it for all our base components. Here you can see the code necessary to make a straightforward, functional component behave like a transparent component. In the following example, you can see the same component automatically generated with the makeCssModuleComponent function we create next. The first step to achieve this is to convert our template into a render function. A render function is a regular JavaScript function so we can easily share it and modify its behavior via the arguments we pass to it. Here you can see a first iteration of the makeCssModuleComponent function, which currently only returns a simple functional component. It is already able to spare us all the ceremony work of creating a transparent functional component but lacks the functionality to add style modifier and state props. In the next chapter, we extend it with the ability to generate all necessary props automatically. Manually adding props for every possible modifier or state class can be cumbersome. We can make this a lot easier by letting our makeCssModuleComponent function do the heavy lifting and automatically generate all necessary props based on the CSS code. The parseProps function is the most critical function for the final result. Next, we take a look at the conditionalClasses function, which is responsible for dynamically applying the classes onto the root element of our final component. Now we already have reached our goal to provide the same functionality as the specific BaseCard. But we can even do better and add prop validation. Register for the Newsletter of my upcoming book: Advanced Vue. Here you can see how we can make this possible without having to do any extra work when creating a new functional component with makeCssModuleComponent. On the BaseLayoutItem component, you can see that the width prop can even except an array of width options. Vue JS 2 Tutorial #20 - Component CSS (scoped)