As a backend developer, I am facing JWT token expired exception (JWTExpiredException) at functional testing ?. I think many of us facing same problem in the daily life coding ?. Want to come out with this problem. Then this article is for you.? Let’s dive in the code without wasting your time.⌚ You can download […] The post Refresh Token : Create JWT token with No Expiration Spring Boot Example appeared first on DasJs ..read more

Learn how to create a reactive microservices architecture with Spring Boot, Spring Cloud Gateway, Spring Cloud Config, Spring WebFlux, Java, and JHipster. Even though it only came to prominence a few years ago, Java has been at the forefront of microservice architecture. Spring Cloud, Spring Data, and Spring Security, Java are well-known high-quality frameworks. Spring […] The post Spring Boot and JHipster With Reactive Microservices? appeared first on DasJs ..read more

What is the concept behind the Friedman number? This number is little bit complex in first time hearing. Find the given number is Friedman number or not. The post Friedman Number: How to Solve using Java? appeared first on DasJs ..read more

If you are Javascript developer then you would aware of console.log() and use many time. But are you aware with other amazing and advanced javascript console methods? If answer is no then this article is for you. At the end of this article, you would be pro debugger and impress your friends with your debugging […] The post Advanced Javascript Console Tips to become Pro Debugger with Bonus appeared first on DasJs ..read more

Lazy Loaded Module is a feature of Angular 10 which decreases the application bundle transmitted over the user's browser. The post Speed up your Angular Application using Lazy Loaded Module appeared first on DasJs ..read more

Handle null is a biggest nightmare for any developers. As I, developer faced this problem multiple time. That's why I come with the solution. In this article we are discussing two best way to handle null in Typescript. The post What are the Best ways to Handle Null in TypeScript? appeared first on DasJs ..read more

Dark mode is a current trending functionality. So today I am going to show you How to add theme switcher lazy load CSS in Angular application. And it would be lazy load which gives a great effect to our application. Do you have any demo for your reference? Yes, OfCourse, you can see demo below: […] The post How to Add Theme Switcher Lazy load CSS in Angular application? appeared first on DasJs ..read more

Debugging is a great tool for every developer. And Angular 9 introduced new Debugging API which make our life easy. Generally, debugging is a crucial part of troubleshooting a code. In Angular 9, it has been added a global “ng” object to make your easier. Ok, where can I use this Debugging API ?? Nice […] The post Do you know about these hidden Debugging API for Angular 9? appeared first on DasJs ..read more

Hey Buddies, we already covered the Crash Course of RxJS Operators. And today I have some bonus RxJS Operators which will ease your work. RxJS transformation operators are useful for generating data by Observers. In this article we’re going to see the Rxjs transformation operators like bufferTime, bufferToggle, bufferWhen, and concatMap operators. Let’s start the RxJS […] The post Bonus RxJS Transformation Operators Every Developers need to Know appeared first on DasJs ..read more

Today, we are going to create a Deno CRUD REST API with simple example. Recently, I covered the tutorial on VDOM (Vue, Deno, Oak, and MongodB) stack application. Deno is the infant secure runtime for JavaScript and TypeScript. Many of the reader asked me to write an article to create rest api using Deno. Generally, […] The post Deno CRUD REST API Example appeared first on DasJs ..read more