Angular polyfills are fallbacks for missing JavaScript behavior. Target: JavaScript language version for emitted JavaScript. If you're not familiar with these things, here's what they are. You'll change the target variable in tsconfig.json, and populate the polyfills file that came with the Angular project. This approach has been abandoned as a standard after Angular 7.Imports a lot of polyfills and bloat bundle for legacy AND modern browsers.Faster builds than using Differential Loading.Configuration prepares building and local development for IE 11 support.You'll also need to populate your Angular project polyfills.Īdvantages of updating tsconfig.json and including polyfills: You can update your tsconfig.json to target ES5. Update tsconfig.json and populate polyfillsīy default, Angular compiles ES6 or ES7. You should customize the user experience because if you don't, users will get a blank screen. Or you could decide to drop support for IE 11.
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