Javascript Baseline pt. 1

Photo by Joshua Aragon on Unsplash

Recently I’ve dived into ECMA-262 (9th Edition / June 2018) specification and in this article I will try to explain variable hoisting using LexicalEnvironment and VariableEnvironment. This article mainly summarise answers to several StackOverflow questions and my understanding of the specification.

The difference between var and let declarations is scoping…

Story about inferential statistics project

This story won’t be a step by step guide to becoming Data Scientist, because I have no idea what should I do after completing following project. So I decide to write a story each time I have some accomplishments on my way.

Something about my…

Recently, I’ve encountered interesting task. I should create proxy with apache or nginx for weblogic application. So this article will be about it.

Overall configuration is following:

worker_processes  1;error_log  logs/error.log;  
error_log logs/error.log notice;
error_log logs/error.log info;
pid logs/nginx.pid;
events {
worker_connections 1024;
}
http {
include mime.types;
default_type application/octet-stream;

While waiting for the project from outsource company, I’ve started to investigate information about Java Play 2 Framework. And it’s really impressive modern tool, which can be used to create amazing web applications. It also has powerful tool to create REST services.

Outsourced application has Angular.js, Gulp, Node.js on front-end…

I need fast and effective method to get three count from one table for statistic on my current personal project. And then I’ve found easy and elegant way to do so:

select count(*) Total,  
sum(case when is_approved = 't' then 1 else 0 end) PendingCount,
sum(case when is_rejected = 't' then 1 else 0 end) RejectedCount
from project_project

You could add group by statement so this code will show you counts for groups. This code I’ve tested in PostgresSQL. I’ll try to test it with Oracle DB and will write an update.

Artem Dracontis

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