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diff --git a/node_modules/date-fns/docs/webpack.md b/node_modules/date-fns/docs/webpack.md deleted file mode 100644 index 37b043d..0000000 --- a/node_modules/date-fns/docs/webpack.md +++ /dev/null @@ -1,48 +0,0 @@ -# webpack - -## Removing unused languages from dynamic import - -If a locale is imported dynamically, then all locales from date-fns are loaded by webpack into a bundle (~160kb) or split across the chunks. This prolongs the build process and increases the amount of space taken. However, it is possible to use webpack to trim down languages using [ContextReplacementPlugin]. - -Let's assume that we have a single point in which supported locales are present: - -`config.js`: - -```js -// `see date-fns/src/locale` for available locales -export const supportedLocales = ['en-US', 'de', 'pl', 'it'] -``` - -We could also have a function that formats the date: - -```js -const getLocale = (locale) => import(`date-fns/locale/${locale}/index.js`) // or require() if using CommonJS - -const formatDate = (date, formatStyle, locale) => { - return format(date, formatStyle, { - locale: getLocale(locale), - }) -} -``` - -In order to exclude unused languages we can use webpacks [ContextReplacementPlugin]. - -`webpack.config.js`: - -```js -import webpack from 'webpack' -import { supportedLocales } from './config.js' - -export default const config = { - plugins: [ - new webpack.ContextReplacementPlugin( - /^date-fns[/\\]locale$/, - new RegExp(`\\.[/\\\\](${supportedLocales.join('|')})[/\\\\]index\\.js$`) - ) - ] -} -``` - -This results in a language bundle of ~23kb . - -[contextreplacementplugin]: https://webpack.js.org/plugins/context-replacement-plugin/ |