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Trailblazer tutorial: move business logic from controller - part 2.

Since we have basic cases and success flow tested and implemented, it is time to focus on our business logic which we want to move from controller to Operation. Our first identified logic is to ...

Adam

Adam Piotrowski

Trailblazer tutorial: fat controller - part 1.

Introduction We write web development software for ~20 years, we used Perl, PHP, Python, C#, and Java during the first 13 years of our existence. Now for the last 7 years, we decided to focus on o...

Adam

Adam Piotrowski

Synchronous and Asynchronous JavaScript for Beginners

A lot of water in the river has passed since my last posts about Javascript. It was not easy to find time for the next part. But ... I succeeded and would like to share something that has been both...

Bartek

Bartosz Łogwiniuk

ES6 for beginners - Part 6 (Destructuring, Template Strings)

destructuring In the current post, we will start with the code using ES5 syntax. var expense = { type: "Business", amount: "50$" }; Imagine we have a simple code like that somewhere in the pr...

Bartek

Bartosz Łogwiniuk

ES6 for beginners - Part 5 (Array Helper Methods)

In the past, we had to have access to external libraries to use most of these methods. They were very popular and therefore it was decided to enter the ES6 standards. Now we have 7 Array Helper Met...

Bartek

Bartosz Łogwiniuk

ES6 for beginners - Part 4 (Rest, Spread)

REST What is rest in ES6? The rest parameter syntax allows us to represent an indefinite number of arguments. We know that in JavaScript functions can have any number of parameters. Besides, we d...

Bartek

Bartosz Łogwiniuk

ES6 for beginners - Part 3 (Classes)

Classes Before we start discussing Classes in JavaScript, one thing needs to be explained. Classes in JavaScript are more like syntatic sugar than the new feature. Nevertheless, as in the case of ...

Bartek

Bartosz Łogwiniuk

ES6 for beginners - Part 2 (Arrow Functions)

(Fat) Arrow Functions We all wrote a lot of functions but let's start with a simple one that adds two arguments. var add = function(a,b) { return a + b; } Of course, everything is correct a...

Bartek

Bartosz Łogwiniuk

ES6 for beginners - Part 1 (Let, Const)

Introduction In the beginning, I would like to congratulate everyone who has read some of my posts about JavaScript! Of course, there is nothing to prevent you from starting from here, but I th...

Bartek

Bartosz Łogwiniuk

JavaScript - Part 20 (Bind, Call, Apply)

You can find previous part of this series here. We already know that a function is a special type of object and has several properties, we already discussed it. To better understand what we are go...

Bartek

Bartosz Łogwiniuk