However, you can set a more restrictive type to get autocomplete and error checking. Typing message IDs and locale īy default, the type for the id prop of and formatMessage is string. In order to use react-intl in TypeScript, make sure your compilerOptions's lib config include. React-intl is written in TypeScript, thus having 1st-class TS support. When using React Intl you'll be interacting with Intl built-ins, React Intl's API, and its React components: There are a few API layers that React Intl provides and is built on. These are a great way to see React Intl's core concepts in action in simplified applications. There are several runnable example apps in this Git repo. Defining default messages for extraction.Formatters (Date, Number, Message, Relative).Here's an example using, components, and the imperative API to setup an i18n context and format data: (This is similar to the connect-to-stores pattern found in many Flux implementations.) It will wrap the passed-in React component with another React component which provides the imperative formatting API into the wrapped component via its props. React Intl's imperative API is accessed via injectIntl, a High-Order Component (HOC) factory. The API should be used when your React component needs to format data to a string value where a React element is not suitable e.g., a title or aria attribute, or for side-effect in componentDidMount. The components provide an idiomatic-React way of integrating internationalization into a React app, and the components have benefits over always using the imperative API directly. React Intl has two ways to format data, through React components and its API. Whether you use the ES6, CommonJS, or UMD version of React Intl, they all provide the same named exports: This way when using the "main" module in Node all locale data is loaded, but ignored when bundled for the browser.Īn ES6 version of React Intl is provided as "jsnext:main" and "module" in package.json and can be used with Rollup.ĭevelopment-time warnings are wrapped with _ENV != 'production', this allows you to specify NODE_ENV when bundling and minifying to have these code blocks removed. The "browser" field in package.json is specified so that only basic English locale data is included when bundling. We've made React Intl work well with module bundlers like: Browserify, Webpack, or Rollup which can be used to bundle React Intl for the browser: Unbundled dependencies, "module" in package.json, warnings in dev. Unbundled dependencies, "main" in package.json, warnings in dev. The react-intl npm package distributes the following modules (links from unpkg): Install the react-intl npm package via npm: If you cannot use the Intl variant of JSC (e.g on iOS), follow the instructions in Runtime Requirements to polyfill those APIs accordingly. If you're using react-intl in React Native, make sure your runtime has built-in Intl support (similar to JSC International variant). If your node version is missing any of the Intl APIs above, you'd have to polyfill them accordingly. Get compiled with full-icu using these instructions.If using React Intl in an earlier version of Node.js, your node binary has to either: Starting with Node.js 13.0.0 full-icu is supported by default. If you need Intl.DisplayNames, include this polyfill in your build along with individual CLDR data for each locale you support. If you're supporting browsers that do not have Intl.RelativeTimeFormat (e.g IE11, Edge, Safari 12-), include this polyfill in your build along with individual CLDR data for each locale you support. Polyfill Intl.NumberFormat with Intl.DateTimeFormat with you're supporting browsers that do not have Intl.PluralRules (e.g IE11 & Safari 12-), include this polyfill in your build. If you're supporting browsers that do not have Intl, include this polyfill in your build. If you need to support older browsers, we recommend you do the following: This can be polyfilled using this package. (Optional) Intl.DisplayNames: Required if you use formatDisplayName.Intl.RelativeTimeFormat: This can be polyfilled using this package. Intl.PluralRules: This can be polyfilled using this package.Intl.DateTimeFormat: Available on IE11+.We support IE11 & 2 most recent versions of Edge, Chrome, Firefox & Safari. Feel free to open a pull request and contribute to the docs to make them better. Welcome to React Intl's docs! This is the place to find React Intl's docs.
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