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Showing posts from August, 2024

Angular full tutorial

  Understanding the Basics What is Angular? Angular is a framework for building web applications. It provides tools and libraries that help you build robust, maintainable, and scalable applications. It follows the Model-View-Controller (MVC) architecture, which helps separate concerns in your code, making it more organized and easier to manage. 1. Setup Environment: Install Node.js : Angular requires Node.js to run. Download and install it from nodejs.org . Verify Installation: Open Terminal. Type node -v and npm -v to check the installed versions. node -v  - Node.js installed. Node.js is a JavaScript runtime used for running JavaScript code outside of a browser, like on servers or for building tools. npm -v - (Node Package Manager) installed.   npm is used to manage packages (libraries or tools) that you can use in your Node.js projects. Install Angular CLI :  The Angular CLI (Command Line Interface) helps with creating and managing Angular proj...
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Angular bootstrap

Angular Bootstrap  Angular Definition : Angular is a front-end framework developed by Google for building dynamic single-page web applications. Bootstrap Definition : Bootstrap is a CSS framework developed by Twitter that provides pre-designed UI components like buttons, forms, modals, and grid layouts. Angular Bootstrap Definition : Angular Bootstrap refers to the practice of using Bootstrap’s design system within an Angular application to quickly build responsive and modern UIs. Install Bootstrap: Navigate to your Angular project directory and install Bootstrap via npm; npm install bootstrap Include Bootstrap in Your Angular Project: Open the angular.json  file and add the Bootstrap CSS to the styles array: "styles" : [   "node_modules/bootstrap/dist/css/bootstrap.min.css" ,   "src/styles.css" ], Include Bootstrap in Your Angular Project: Open the  angular.json  file and add the Bootstrap CSS to the  styles  array:   "scripts" : [ "node...
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JAVASCRIPT interview question

                                                              java script interview question  1.What is JavaScript? JavaScript is a high-level, interpreted programming language used to create dynamic and interactive web pages. 2.What are the different data types in JavaScript? JavaScript supports several data types, including number, string, boolean, object, function, and undefined. Additionally, there's a special data type called null. 3.What is the difference between == and === in JavaScript? == is used for loose equality comparison, which means it only checks if the values are equal. === is used for strict equality comparison, which not only checks if the values are equal but also checks if they have the same data type. 4.What is the difference between nu...
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HTML interview question

                                 Html interview question  1.What is HTML? HTML stands for HyperText Markup Language. It is the standard markup language used to create web pages. 2.What are the basic building blocks of HTML? The basic building blocks of HTML are elements. These elements are represented by tags enclosed in angle brackets,  such as <p> for paragraphs, <h1> for headings, <a> for links, etc. 3.What is the latest version of HTML? The latest version of HTML is HTML5. 4.Explain the purpose of the DOCTYPE declaration in HTML. The DOCTYPE declaration specifies the document type and version of HTML being used in the document.  It helps browsers to render the web page correctly by ensuring compatibility and standards compliance. 5.What are semantic elements in HTML5, and why are they important? Semantic elements in HTML5, such as <header>, <fo...
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CSS interview question

                                                  C ss interview question  1.What is CSS?           CSS stands for Cascading Style Sheets. It's a style sheet language used for describing the presentation of a document written in HTML. 2.What are the different ways to include CSS in a web page?                CSS can be included in a web page using three methods: Inline CSS      : Using the style attribute within HTML elements. Internal CSS  : Including CSS within <style> tags in the <head> section of an HTML document.        External CSS: Linking an external CSS file using the <link> tag in the <head> section of an HTML document. 3.What is the difference be...
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HTML

 what is html : HTML (HyperText Markup Language) is the standard language used to create and design webpages.  HTML is the standard markup language for creating Web pages.
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function and anonymous function , type of function

function  &  anonymous function  : The key difference between a function and an anonymous function lies in how they are defined and used. Let's break it down. Named Function (Regular Function): A named function is a function that has a name by which it can be invoked. const add = function ( a : number , b : number ) : number {   return a + b ; }; add ( 10 , 20 ); // Calling the function using the variable name "add" Anonymous Function: An anonymous function is a function without a name . It is typically used in situations where a function is passed as an argument or assigned to a variable. const add = function ( a : number , b : number ) : number {   return a + b ; }; add ( 10 , 20 ); // Calling the function using the variable name "add"   Comparison: Aspect Named Function Anonymous Function Name Has a name (e.g.,  add ) No name; assigned to a variable Usage Called by its name Called using the variable it’s assigned to Ho...
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Add HTTP communication to your app

  Step 1 - Configure the JSON server : JSON Server is an   open source tool used to create mock REST APIs. You'll use it to serve the housing location data that is currently stored in the housing service.   Install  json-server  from    npm  by using the following command.                                                npm install -g json-server In the root directory of your project, create a file called   db.json . This is where you will store the data for the  json-server . Open  db.json    and copy the following code into the file. {   "locations" : [   {   "id" : 0 ,   "name" : "Acme Fresh Start Housing" ,   "city" : "Chicago" ,   "state" : "IL" ,   "photo" : "https://angular.io/assets/images/tutorials/faa/bernard- hermant-CLKGGwIBTa...
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http call

 Observable: An Observable is a powerful way to manage asynchronous data. It is part of the Reactive Extensions for JavaScript (RxJS) library. which is widely used in Angular applications.   Observables can emit multiple values over time .  Making them ideal for handling data streams like HTTP requests, user inputs, or WebSocket messages. Key Concepts : Observable :  An object that represents a stream of data that can be observed. Observer :  An object that subscribes to the Observable to receive data or notifications. Subscription :  A connection between the Observable and the Observer. It can be used to cancel the data stream. Operators :  Functions that allow you to manipulate the data stream, like filtering, mapping, or merging data.
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Json

  JSON JSON (JavaScript Object Notation). JSON  is a lightweight     that's easy for humans to read and write, and easy to findout .  machines to parse and generate.  It is often used for transmitting data in web applications. Data Types: Object:   A collection of key-value pairs, similar to a dictionary or a map. In JSON, an object is represented with curly braces {} . Syntax Rules: {   "name" : "John" ,   "age" : 30 ,   "isStudent" : false } Array:  An ordered list of values, similar to a list or an array. In JSON, an array is represented with square brackets [] . Syntax Rules: Arrays: Contain values separated by commas. [   "apple" ,   "banana" ,   "cherry" ] String: A sequence of characters, surrounded by double quotes " " . Syntax Rules: Strings: Enclosed in double quotes. "Hello, World!"           Number: A numerical value. JSON does not differentiate between integers and flo...
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