I come back after a long timeout because my relocation to Cyprus. In this video I'll remind you about last discussing lifecycle angular component hooks. Also we'll consider the special decorators for getting access to child component from parentAngular has termines...
Every Angular component has its own lifecycle. Lifecycle includes several optional methods, which you can realize for response to different component events (change detection run for example)To describe lifecycle method (hooks) you need implement interface contains...
Angular app is components tree. When something has changed in component (DOM changes, run timeout, intervals, promises, http requests), Angular checks all components for changes. It can affect negatively to app performance. In this video we'll consider change...
Today we'll consider interaction between parent and child Angular components. Components with different levels of nesting can interact with middl service (we'll talk about it in next videos).We have to use @Input() and @Output() decorators for using interaction...
In this video we'll talk about several built-in Angular directives - ngStyle, ngClass, ngSwitchCase, ng-templateAlso we'll discuss local templates inside ngFor element template. Especially I notice about importance of trackBy. This param increase Angular apps...
In this tutorial we'll consider Angular structural directives - *ngFor and *ngIf and the special directive ng-containerAngular has hot three kinds of directives structural - it changes DOM structure. attributes - it changes the element view/behaviour. components...
In this video we'll discuss modules. Modules are "global building blocks" of Angular applications. Angular always has one root module AppModule. Angular module is a class with the NgModule decorator. This decorator gets metadata with next props: declarations - the...
Angular pipes are analogues of AngularJS filters. They transform data before output it in component template.Angular has several built-in pipes (date, uppercase, lowercase, currency, decimal, percent). Also developer can create his own pipes. Pipe is a class, realize...
Services in Angular are simple classes, who make specific non-component operations (calculations, read data from remote HTTP server and etc).Services have the special decorator @Injectable(), which define this class as the service. The decorator has a param...