Angular Interview : is Angular Service Singleton ?

One of the most popular Angular interview questions is, whether a service is singleton? By default, when you create a service using the below CLI command, ng g s app AppService is singleton, however it can be re-provided to create more objects of it. Say, you again re provide AppService in one of the components, … Continue reading Angular Interview : is Angular Service Singleton ?

Closures in JavaScript: Video

A JavaScript closure is a function which remembers the environment in which it was created. We can think of it as an object with one method and private variables. JavaScript closures are a special kind of object which contains the function and the local scope of the function with all the variables (environment) when the … Continue reading Closures in JavaScript: Video

Video – Step by Step Create Node.js REST API with SQL Server Database

In this video, learn to create a Node.js API to perform CRUD operations on a database in SQL Server. https://www.youtube.com/watch?v=Uvy_BlgwfLI You can find the source code here : https://github.com/debugmodedotnet/sqlservernodejsrestapi For notifications of the further videos, subscribe to the <geek97/> Youtube channel here : https://www.youtube.com/c/geek97

Video – Step by Step using TypeScript in a Node.js Application

This video explains steps to use TypeScript in a Node.js application. You can read step by step article on the same here -  here Download source code from here https://www.youtube.com/watch?v=fOkAMBVyuo0   To start with create a folder and run npm init command inside the folder. After that install these dependencies,  npm install -D typescript npm install … Continue reading Video – Step by Step using TypeScript in a Node.js Application