Programming

RxJS Methods. Part 1

The methods that are covered in this video are map, filter, reduce, take/skip and distinct. Most of them are array-like primitives they will give you the basis of your further work with RxJs and introduce main instruments from this large swiss knife!

Category: Programming
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Vagrant Tutorial #part 2

Hello, everyone! Last time we have discussed how to use vagrant boxes. Now we are going to make our own vagrant box. This presentation will be useful for big teams starting from 15 developers or just for geeks from dev ops world.

Category: Programming
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Programming Patterns. Publisher/Subscriber, Mediator

Our today's heroes are Publisher / Subscriber pattern and the Mediator pattern. Basically, I created this video to explain the difference both to patterns and Observer pattern ...

Category: Programming
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RxJS Introduction

Our today’s topic is a library for working with streams and events. It’s RxJS and it represents the idea of reactive programming. In the simple words, the meaning of this idea semantically is a representation of all operations as the stream, more specifically, as the sequence of events. Programmatically it means for our usage of two patterns: iterator (for establishing of the sequence itself and going through this one) and observer (for changes propagation).

Category: Programming
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Vagrant Tutorial

From my experience many times customers asked me to install new environment for myself, help newbies to set the same environment. Another case was to upgrade software packages, e.g. Postgres 5.4 to 5.5. These tasks are not the complexity of ‘rocket science’ but if you are front-end developer it can take much of your time. The best is to give DevOps work to DevOps engineers.

Category: Programming
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Programming Patterns. Strategy, Observer, Iterator

Use when you want to select between different algorithms in the process of task resolving. So basically all that you need to realize this pattern are strategies (each of them in the separated component/class, but with the same interface) and strategy selector (decides what strategy is more effective at the moment and uses it).

Category: Programming
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Programming Patterns. Facade, Adapter, Decorator

The main idea is a creation of simplified interface to application functionality. Basically, when you create components of your application the interfaces of these ones can be really complicated for outside usage. So to resolve this problem and provide easy-to-go solution, you can use Façade.

Category: Programming
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Programming Patterns. Module, Singleton, Factory

"Module" pattern is usually used to encapsulate some logic inside the component and return only the part that supposed to be public. It brings the encapsulation that’s natively not supported in JavaScript.

Category: Programming
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Programming Patterns. SOLID principle

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;

Category: Programming
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Programming Patterns. Introduction

Patterns are the part of programming that needs to be studied regardless of the specific language, so that doesn’t matter what exactly you use: C, C++, C# or JavaScript, each of them uses some of the programming patterns, but there is the most interesting point how to implement the concept according to language specifics.

Category: Programming
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