ES6, also known as ECMAScript 2015, is a significant update to the language, and the first update to the language after ES5 was standardized in 2009. In this series of posts, I will try to cover the main changes that have been introduced in ES6.

Code editor keyboard shortcuts can save you a lot of time. They can replace several operations with just one. So a programmer who actively uses keyboard shortcuts will surpass the speed of writing code for a programmer that does not use shortcuts if they are equal in level of knowledge…

In a single HTML document possible that some CSS rules will conflict with one another. CSS uses a mechanism called the cascade to resolve any such conflicts. Before describing how the cascade works, we need to consider two of its main components — specificity and inheritance. Specificity

CSS selector is the part of a CSS rule set that actually selects the content you want to style. Let’s look at all the different kinds of selectors Universal Selector Universal selector selects all the elements on a webpage. Example: * { margin: 0; padding: 0; } Element Selector Also referred to simply as a…

Background Last week I needed to implement authorization via SAML Security Assertion Markup Language (SAML) is an open standard for exchanging authentication and authorization data between parties, in particular, between an identity provider and a service provider. …

A well-written project is more stable, easier to maintain, more enjoyable to work with. In the following post, we will discuss some best practices that will allow you to take your project to a new level. Best Practices Deliver Working Software Pair programming is a development technique in which two programmers work on a specific…

Background After the client requests to connect to the database, the client will be prompted to enter the user password. If the client does not enter the password, the database server will disconnect after a timeout period. In other words, before the server actively disconnects, the connection needs to occupy a…

There are several types of indexes in PostgreSQL. Beginners or those who have little to do with the databases use the index that PostgreSQL creates by default (B-tree) or do not create them at all. It is necessary to know what indexes are used in which situations to speed up…

In a previous post, we looked at principles to avoid when writing code. You can read it here. In this post, we will look at SOLID design principles, programming standards that all developers must understand well to create good architecture. SOLID is a mnemonic acronym for: Single Responsibility Open-closed Liskov…