Update build system to use core-js 3 #13981
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waiting for PR angular/angular-cli#13981 to be merged and released
| import 'core-js/es/promise'; | ||
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| // ES2015 object capabilities | ||
| import 'core-js/es/object/create'; |
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Why is it necessary to import each function individually?
Why not import everything at once by import 'core-js/es/object';?
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Angular only requires the ES2015 polyfills. In core-js 3.0, core-js/es/object includes all current ES polyfills (up to ES2019). This was an attempt to reduce the bundle size increase. Using the single imports resulted in an increase of ~15kb to the polyfills file. Further work is currently being done to attempt to close the gap even further.
…rojects Required polyfills are now managed directly by the build system. If additional polyfills are required, packages can be manually added as needed.
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Also, required ES polyfills are now managed directly by the build system. If additional polyfills are required, packages can be manually added as needed. This reduces the number of direct dependencies for a new project.