Recent Articles Changed

Email - Quoted Printable Encoding (3D, ..)

Modified Dec 08 - 12:22

The quoted printable encoding is: an encoding scheme that is applied to the body of an email part and is given by the Content-Transfer-Encoding header. Example Example Text Raw form: In the Quoted-Printable encoding: Html Encoded:

Anatomy of a letter - With which components is a letter written

Modified Dec 06 - 21:30

This page lists the structure or elements that you can find in a letter

A page with snippets of thymeleaf Java template engine

Modified Dec 06 - 21:26

HTML, Text or any other thymelaf snippet

Vertx - Serving a static web site (Static content)

Modified Dec 06 - 13:43

How to server a static website with vertx Default Configuration Root directory: The default static file directory is called webroot Cache : cache-control is set to max-age=86400 (controlled by setMaxAgeSeconds) Cache .vertxworking directoryDisablin "...

NPM - Script

Modified Dec 06 - 10:03

Package.json - Script npm scripts are command line that are specified in the script element of package.json. Management Run Command line To run a script, you would execute the following npm command All To run the script sequentially on all platform. "...

Javascript Package - Package.json

Modified Dec 06 - 10:02

Package.json is used by npm to store metadata for projects published as npm modules. Package.json: serves as documentation for what packages your project depends on. allows you to specify the versions of a package that your project can use usingse "...


Modified Dec 05 - 10:27

is a front-end framework base on the virtual dom technology If the data (state) changes, UI should change. Learn once, write anywhere Babel for JSX and (also known as ES2015) Inventor: Jordan Walke ?? Library

Recent Articles Created

Email - Content-transfer-encoding header

Created Dec 08 - 12:20

The Content-Transfer-Encoding is a header value of an email part that defines the encoding. The mechanism value may be: 7bit 8bit binary quoted printable base64 ietf-token / x-token

Email - Quoted Printable Encoding (3D, ..)

Created Dec 08 - 12:04

The quoted printable encoding is: an encoding scheme that is applied to the body of an email part and is given by the Content-Transfer-Encoding header. Example Example Text Raw form: In the Quoted-Printable encoding: Html Encoded:

URI template

Created Nov 28 - 16:05

URI A URI Template is a compact sequence of characters for describing a range of Uniform Resource Identifiers through variable expansion. Example URL template literal URL URL template in code URL Usage to create URI that follows a pattern to defi...

PCAP Api (Packet Capture)

Created Nov 17 - 14:39

pcap is an application programming interface (API) for capturing network traffic. pcap means packet capture.

DNS - Application / Library / Software

Created Nov 17 - 12:08


Sqlite - If Statement

Created Nov 17 - 10:55

Most SQL database does not use the if construct but the conditional case statement to express a condition. Example For example where Saturday and Sunday are marked as weekend and the other days as midweek

SQLite - Case statement

Created Nov 17 - 10:53

The case statement in sqlite Example Value based Format The value base format with the weekday name from its number (o being sunday). Conditional expression base case The conditional based format Example where Saturday and Sunday are marked as weeken...

RSA Private Key

Created Nov 16 - 16:46

This article is the private key generated by the RSA implementation Command Info With openssl rsa module Create a public key Create a public key Convert from PEM to pkcs8 base64 PEM Convert a private key to PKCS#8 unencrypted format with Convert fr...

Data all the way

Always keep one hand firmly on data, Amos liked to say.

Data is what set psychology apart from philosophy, and physics from metaphysics.

Amos Tversky (The undoing project)

Data Warehouse Subsystems

Developing a data warehouse means assembling a lot of subsystems in order to create a whole and coherent data application.

Discovers the 34 Kimball Subsystems and drill down to discover them

Data Warehouse Subsystems

Data Processing

Data processing has changed a lot since 1940 :) and luckily, we are not using punch card anymore.

Stream processing is becoming the norm in data integration task while batch processing stays the king in data analysis.

Data Processing

ENIAC, 1946

The first fully electronic digital computer

Data Modeling

Data Modeling is the translation of process into the world of data. The process is tricky but not insurmountable.

Data Modeling

Dimensional Data Modeling

Dimensional Data Modeling permits you to model a (hyper)cube and analyse a process through different perspective. You define dimensions, measures and metrics.

Dimensional Data Modeling

Most programs process some input to produce some output; that’s pretty much the definition of computing.


A Function is the basic block of all reusable code component. It is also becoming the central component of any serverless architecture.


Knowledge isn't free. You have to pay attention.

Computing Division at the Department of the Treasury, mid 1920s

Table / Relation

The table format (known also as a relation) is the most important data structure used in data analysis. Did you know that its name originate from the medieval counting table ?


Education isn't something you can finish.

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