Browse trusted health articles by topic. Use the filters and A-Z index to quickly find related medical content.
Mobile Phones/Cell Phones is the fundamental element in every moment or second in our life. But this most useable phone has some health effect that are...
Read articleProgramming languages are the foundation of software development and computer science. They provide a medium through which humans can instruct machines to perform specific tasks. Here’s...
Read articleAnd note some fundamentals of Promise – When you create a new Promise, you’re really just creating a plain old JavaScript object. This object can invoke...
Read articleThis tutorial teaches FIWARE users how to alter the context programmatically. The tutorial builds on the entities created in the previous stock management example and enables a user...
Read articleIn this file, you will write the functions that dispatch an action. These functions will be linked to your component props by the container’s mapDispatchToProps function....
Read articleA lifecycle hook that is called after Angular has fully initialized a component’s view. Define an ngAfterViewInit() method to handle any additional initialization tasks. interface AfterViewInit...
Read articleAggregation in MongoDB is nothing but an operation used to process the data that returns the computed results. Aggregation basically groups the data from multiple documents...
Read articleFiber, the new React reconciliation algorithm, has the ability to start and stop rendering as needed for performance benefits. One of the trade-offs of this is...
Read articleFirst a re-cap of the basic CSS Chain/Descendant Selector 1> Chain Selectors – https://stackoverflow.com/questions/13444647/css-class-definition-with-multiple-identifiers .class1.class2 will match only the elements that have both of the classes defined....
Read articleBasically, the Company asked to create an Android “screen” that would allow a user to enter and submit the following data from an American Express, Discover,...
Read articleAccording to original Documentation the pipable operator is that function take observables as a input and it returns another observable .previous observable stays unmodified. pipe(...fns: UnaryFunction<any,...
Read articleOne of the main goals of Angular is to help the developer create reusable and composable components. I think ng-content is one of the simplest ways...
Read articleAnd note some fundamentals of Promise – When you create a new Promise, you’re really just creating a plain old JavaScript object. This object can invoke...
Read articlePromise object is used for handling asynchronous computations which has some important guarantees that are difficult to handle with the callback method (the more old-school method...
Read articleAns: Node.js uses a library called libuv, to bring an asynchronous event driven model to Javscript. It piggy backs on Chrome’s Javascript Engine called V8 to enable the...
Read articlelocalStorage and sessionStorage both extend Storage. There is no difference between them except for the intended “non-persistence” of sessionStorage. That is, the data stored in localStorage persists until explicitly...
Read articleCookie-based authentication has been the default, tried-and-true method for handling user authentication for a long time. Cookie-based authentication is stateful. This means that an authentication record or...
Read articleThe pipe() function reads data from a readable stream as it becomes available, and writes it to a destination writable stream. It does all “reasonable” things...
Read articleIf you’ll recall, Express works with a request-response cycle in which callback functions are tied to specific routes and have access to request and response objects,...
Read articleThe very basic steps of express-session and cookie-based session management The first time a browser makes a request to our server, express session generates a unique...
Read articlePassport is a framework, and a Node.js middleware, that is extremely flexible and modular. It allows you to work with the main authentication strategies: Basic &...
Read articleExplanation so, basically it removes all the create and start server code from your app.js and let you focus only on the application logic part. Note: If you...
Read articleSince version 6.3, Node.js provides a built-in DevTools-based debugger which mostly deprecates Node Inspector, see e.g. this blog post to get started. The built-in debugger is...
Read articlelocalForage improves the offline experience of your web app by using asynchronous storage (IndexedDB or WebSQL) with a simple, localStorage-like API. Official site An important step...
Read articleFirst note, in a typical node app, the token is generated with jsonwebtoken npm package using jwt.sign() function in the auth.js backend route or controller. So...
Read articleA JSON Web Token(JWT), defines an explicit, compact, and self-containing secured protocol for transmitting restricted informations. This is often used to send information that can be...
Read articleWe can speak about the graceful shutdown of our application, when all of the resources it used and all of the traffic and/or data processing what...
Read articleAns: First, a classic use of callback methods. Second, using Promises. Finally, in a more sophisticated way, we can use reactive extensions (RxJS) to define pipelines the...
Read articleSo you don’t have to repeat same code over and over again. Node.js is a low-level I/O mechanism which has an HTTP module. If you just...
Read articleThere are four main ways to deliver an error in Node.js: throw the error (making it an exception). pass the error to a callback, a function...
Read articleA> https://medium.com/@alexishevia/using-cors-in-express-cac7e29b005b Cross-origin resource sharing (CORS) allows AJAX requests to skip the Same-origin policy and access resources from remote hosts. https://www.infoworld.com/article/3173363/application-development/how-to-enable-cors-on-your-web-api.html Security restrictions on your browser’s security...
Read articleThe cookie parser parses cookies and puts the cookie information on req object in the middleware. It will also decrypt signed cookies provided you know the...
Read article
