Earlier than Angular 19, when server-side rendering is enabled, by default Angular will server-side render all parameterized routes and pre-render all routes with out parameters. With path-level rendering mode, Angular gives a brand new interface, ServerRoutewhich permits builders to configure whether or not particular person paths needs to be rendered server-side, pre-rendered, or rendered client-side.
Additionally in Angular 19, occasion playback is enabled by default. A standard drawback in server-side rendered purposes is the hole between a consumer occasion and the browser that downloads and executes the code accountable for dealing with the occasion. An occasion dispatch library was shared final Could to deal with this use case. Occasion dispatch captures the preliminary loading occasions and performs them when the code accountable for dealing with the occasions is out there.
Angular 19 is a sizzling module substitute (HMR) for out-of-the-box kinds. The discharge permits experimental assist for the HMR template behind a flag. Earlier than this enchancment, when a developer modified the model or template of a element and saved the file, Angular CLI would rebuild the applying and ship a notification to the browser, which might replace. The brand new HMR will compile the up to date model or template, ship the end result to the browser, and patch the applying with out refreshing the web page or shedding state. This gives sooner response and an uninterrupted state of stream.
