Let’s start from SOLID principles to get the basic understanding of this stuff. There are 5 principles: – Single responsibility; – Open-closed; – Liskov substitution; – Interface segregation; – Dependency inversion;
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This article will deal with how to create a web server in Node.js, which will return a file to a user from a public directory. You may wonder: why do we need Node.js here? Why can’t we use another server? You question surely does make sense. Yes, for returning files other servers are generally more effective. From the other side, Node.js works pretty well, too. Second, before returning a file it can also perform some intellectual activities: for example, refer to a database, check out whether a user is permitted to access the file and give the file to him, if it’s permitted.
To become proficient in SQL, however, remote developers should really take their time to study this field — and test their knowledge via technical interviews.
With bots’ popularity rising every year, many people tried to prophesize that bots would revolutionize the entire IT industry … but as we all know, that didn’t quite happen. So what gives? In this article, we’ll examine the ins and outs of modern bots: what their functionality looks like, which websites, services, and software they can be applied on, and which technologies can be used to create them.
