Published in Level Up Coding·Mar 2How to Design Reliable MicroservicesA microservice application with an uptime percentage of 99.9% can be considered highly available, but a downtime of 0.1% quickly becomes pronounced as volumes increases. Per 1000 requests, there might be only one failure, but per million requests? That’s 1000 failures. It’s impossible to eliminate failure in microservice applications. Instead…Programming9 min read
Published in JavaScript in Plain English·Dec 22, 2021Level Up Your MongoDB Query Skills IIMaster MongoDB Aggregation — This article is the second part of Level Up Your MongoDB Query Skills (Master MongoDB Queries). Level Up Your MongoDB Query Skills Master MongoDB Queriesjavascript.plainenglish.io Hence, to avoid repetition, I’ll reuse some of the programs in that article, which includes how to create a MongoDB connection, the creation of a User collection and documents, and how to perform CRUD…Programming8 min read
Published in JavaScript in Plain English·Sep 4, 2021How to Structure a Unit TestBest practices for writing unit tests — I don’t like writing tests. Most developers don’t enjoy it either, but software development is not about likes and dislikes. It involves building the best possible products. A lot is at stake — business, money, reputation, and in some cases, life, too. According to Forte group: Unit testing ensures that all code meets quality standards…Programming4 min read
Published in JavaScript in Plain English·Apr 9, 2021How To Authenticate and Authorize Using JWT with Node.jsI bet it would be frustrating if you were required to log in every time, on your favorite app. In this article, we’ll explore JWTs (JSON Web Tokens). JWTs provides a nice system for issuing and validating authentication tokens. …Programming6 min read
Published in JavaScript in Plain English·Feb 23, 2021|| and && Are Not “Logical Operators” In JavaScriptA more apt name would be “selector operators.” — Hear me out. If you’ve written software with PHP or any statically typed language, you’d know that the value of any expression including either || or && will return a boolean. Enter JavaScript. The name logical operators doesn’t completely describe the function of || and && in JavaScript. …Java Script2 min read
Published in JavaScript in Plain English·Feb 17, 2021Level Up Your MongoDb Query SkillsMaster MongoDb Queries — Every web developer loves MongoDB. Okay, fine, almost every web developer. It’s no coincidence that it is the market leading document-based database platform. MongoDB is flexible and allows developers to quickly store large amounts of unstructured data. In this guide, we are going to learn how to write MongoDB queries…Programming10 min read
Published in Analytics Vidhya·May 5, 2020LOOSE EQUALS (==) || STRICT EQUALS (===)I asked a colleague the difference between the “double equal to” and the “triple equal to” (that’s what we call it), and he looked me in the eye in such a way that would make my girlfriend jealous and said: “The double equal to” checks if the values are equal…Java Script5 min read
