What's new in Angular 6?
What does that change?
All decorators are presently inlined straightforwardly into their classes (it's the same for @Injectable, @Pipe, @Directive) and can be generated with just the learning of the present decorator. This is the thing that the Angular group calls the "region chief": to re-gather a segment, there is no compelling reason to break down the application once more.
The generated code is marginally littler, yet more significantly a few conditions are currently decoupled, taking into account a quicker recompilation when you change one a player in the application. It likewise plays considerably more pleasant with present-day bundlers like Webpack, and will now truly tree-shake the parts of the framework that you don't utilize. For instance, in the event that you have no pipe in your application, the code in the framework that is important to translate pipes is excluded in the last package.
Angular used to deliver overwhelming code. That is not really an issue, but rather a Hello World application was far too overwhelming: 37kb after minification and pressure. With Ivy-generated code, the tree-shaking process is considerably more productive, bringing about littler packs \o/. The Hello World is currently 7.3kb minified, and just 2.7kb after pressure, which is a gigantic contrast. The TodoMVC application is 12.2kb after pressure. These numbers are from the Angular group, and we couldn't accompany some others as despite everything you need to physically fix Ivy to influence it to fill in at this very moment.
Look at the Keynote from ng-conf in the event that you need to take in more.
Similarity with existing libraries:
You may ponder what will occur with libraries that have just been distributed utilizing the past bundling position if your task utilizes Ivy. Try not to stress, the renderer will create an Ivy-good form of the conditions of your task, regardless of whether they are not ordered with Ivy. I'll save you the shocking points of interest, however, it ought to be straightforward to us.
We should perceive what new features we'll have with this new renderer.
Private properties in templates
The new renderer includes a new component or potential change.
It is an immediate consequence of the way that the format work is inlined in a static field of the segment: we would now be able to have private properties of our segments utilized in templates. This was impractical until at that point and constrained us to have every one of the fields and techniques for the part utilized in the layout to be open, as they wound up in an alternate class (the ngfactory). Getting to a private property from another class would have fizzled the TypeScript assemblage. This is not true anymore: as the format work is inside a static field, it approaches the private properties of the segment.
I saw a remark from the Angular group saying that it was not prescribed to utilize private properties in templates, regardless of whether it is presently conceivable, as it may not be the situation later on… So you ought to most likely keep on using just open fields in your templates! Anyway, it makes unit tests simpler to compose, as the test can investigate the condition of the part without having to really produce and examine the DOM to do as such.
Note this new renderer will now permit to have the much-anticipated probability of having "runtime i18n". This isn't totally prepared, however, we saw a couple of submits that are great signs!
The cool thing is that you ought not to need to change your application a considerable measure in the event that you are now utilizing i18n. Be that as it may, this time as opposed to building your application one time for every region you need to help, you will have the capacity to simply stack a JSON containing the translations for every area, and Angular will deal with the rest!
Libraries with AoT code
At the present time, a library discharged on NPM must distribute a metadata.json record, and can't distribute the AoT code from its parts. Which is tragic, in light of the fact that we need to pay the cost of this work in our applications. With Ivy, the metadata document is not any more essential and library creators ought to have the capacity to straightforwardly deliver AoT code to NPM!
Better stack traces
The generated code should now take into account better stack traces when you have an issue in your templates, by yielding a decent blunder with the line of the layout to blame. It will even enable us to put break focuses in the templates and see what truly is going ahead in Angular.
NgModule will vanish?
It is a far-fetched objective, yet later on, we probably won't require NgModules any longer. This is the thing that tree-shakeable suppliers are beginning to let us know, and it would seem that Ivy has the fundamental beginning squares for the group to endeavor to evacuate the requirement for NgModules (or possibly make them less irritating). This isn't for the present moment however, we'll be persistent.
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