Skip to main content

Posts

Showing posts from February, 2023

ngModel in Angular

 ngModel :-                                                             ================== ngModel is a directive in angular that allow two way data binding. it bind th value of an HTML control (such as input, select, or textarea) to a prperty on the component and updates that property when the user changes th evalue in the control. To use "ngModel" in Angular, you need to import the formModule in your module And add it to the "imports" array. Then you can add the "ngModel" directive to an HTML controlin your template and  bind it to a property on ypur component using square brackets. Here is an example of using "ngModel" in a simple input form: Example:- <!-- component.html --> <input [(ngModel)]="name"> <!-- component.ts --> export class MyComponent {   name: string; } ================================== E...

Architecture Of Angular

  Architecture Of Angular The architecture of an Angular project can vary depending on the size and complexity of the project, but it typically follows a modular structure. Modules: Angular applications are composed of several modules, each with a specific purpose. The root module,  named AppModule, is the starting point of the application and defines the components, services, and other parts  of the application that are required. Additional modules can be created to organize the code and provide a clear  structure for the application. Components:  ============ Components are the building blocks of an Angular application and define the view and behavior of a  specific part of the application. A component is composed of a template, a class, and metadata that defines the component's behavior. Services:  ========= Services provide a way to share data and logic across multiple components in an Angular application. Services  can be used to encapsulate ...

Observables different from Promises

 💪Difference between Observables and Promises😐 observables                                         Promises ======================================================== 1.They handle multiple asynchronous      1. They deal with asynchronous event at a time events over a period of time 2.They are lazy . they are not                2. They are not lazy. they are executed immediately  executed until we                                  after creation  was the subscribe() method 3.  Cancellable subscriptions                3.Promisses are not cancellable using the unsubscribe() method. 4. They deliver errors to the                4. They push the errors t...

All form module some example

 Angular Some Tool FormBuilder:  =========== It's a helper class in Angular that allows you to build complex forms with less code.  It makes creating instances of FormControl and FormGroup easier. FormGroup:  ============ It's a class in Angular that represents a group of form controls. It allows you to validate  the entire form as a whole, rather than validating each control individually. FormControl: =============  It's a class in Angular that represents a single form control, such as a text input.  It allows you to validate a single form control, track its value, and set its behavior, such as disabling the control. ngModel: =========  It's a directive in Angular that allows two-way data binding between a form control and a model.  It makes it easier to keep the value of a form control in sync with a model. FormModule: ============  It's a module in Angular that contains the necessary logic and components for  creating forms in yo...

Angular directive

 1.                        👇💪  Angular Directive                   ================================================  An Angular directive is a special kind of component that adds behavior to an HTML element  or an Angular component. Directives can manipulate the DOM (Document Object Model),  modify the appearance and behavior of an element, or create new components dynamically. ==================================================================  There are three types of Angular directives: 1. Component Directive:  This is the most commonly used type of directive, and it is responsible  for defining custom elements that act as reusable components. Component directives have their  own template and styles and can receive data and events through input and output bindings. Exp:-Here's an example of a component directive in Angular: import { C...

Basic knowledge of Angular

 1.What is TypeScript? ==================== TypeScript is a superset of JavaScript that offers excellent consistency. It is highly recommended,  as it provides some syntactic sugar and makes the code base more comfortable to understand and maintain.  Ultimately, TypeScript code compiles down to JavaScript that can run efficiently in any environment.  2.What is data binding? Which type of data binding does Angular deploy? ============================================================================= Data binding is a phenomenon that allows any internet user to manipulate Web page elements using a Web browser.  It uses dynamic HTML and does not require complex scripting or programming. We use data binding in web pages  that contain interactive components such as forms, calculators, tutorials, and games.  Incremental display of a webpage makes data binding convenient when pages have an enormous amount of data.  Angular uses the two-way binding. Any ch...

What why and how to use angular

 What is Angular ================ Angular is a JavaScript framework for building web applications. It allows developers  to create dynamic, single-page applications with a clean and efficient   architecture. Angular uses a declarative approach to coding, which makes  it easier to understand and maintain. It also provides a wide range of  features, such as two-way data binding, modular architecture, and a  rich set of built-in directives, to make development faster and easier. Why Angular very Popular ======================== Angular has become popular for several reasons: 1.Widely used and supported: Angular is an open-source framework maintained by  Google and has a large community of developers and users. This makes it easier  to find help and resources when developing with Angular. 2.Declarative approach to coding: Angular uses a declarative approach, which makes  it easier to understand and maintain code compared to imperative coding...

Angular Interview Question

 Angular Interview Question **********Angular Developer Key Skills and things to know********** 1. Angular 7 recommended and Angular latest version with differences 2. Complete life cycle of Angular Project, Project folder structure, Angular Components 3. How to create Component, Service, Model class, Interface, loader, Interceptor 4. What is angular dependency 5. What is Provider, Import, Export in terms of Angular component configuration 6. npm 7. Angular CLI 8. HTML and CSS 9. Angular 10. TypeScript 11. RxJS 12. Git 13. Empathy 14. Testing and Debugging 15. Responsive Design ====================================== Answer every question ============================ 1. Interface ============= 1.Interface is a structure that define the syntax of classes to follow 2.Interface define a properties , method,and event which are the member of the  interface interfacce contain only declaration of the member Example: create a a interface file  1. Empl...