A theme for productivity at work

Simplifying the To-Do List

I have started to simplify how I manage tasks by using journaling as my tool. It's just one page, and all I need to do is write down what I need to do each day. This page will be archived weekly, and no personal kanban is needed anymore. I feel that this approach is sufficient for the job.

Focus Mode

I rarely get any notifications during the week.

- I use macOS Focus Mode "Mindfulness" as my default.

- I uninstall desktop apps that make noise, such as Slack, Outlook, Teams, and Messenger. Instead, I use the web in my browser.

- I use Flow as my Pomodoro app.

- I use macOS Shortcuts to define most of the tasks I do at work.

Keeping in Mind...

When I was too engaged in work, it was easy to get exhausted. There are two things that I should always keep in mind to avoid burnout:

- Always save time for adapting to changes.

- Do not expect too much from outsiders.

Comments

What the heck is Meteor DDP?

I was using Meteor for my messenger project. I was so curious about the real time connection. I wanted to know how exactly this mechanism works. In this post, I will go through the DDP Specification, an overview of WebSocket, and a simple demo about how to subscribe a publication of Rocket.Chat (containing a DDP server) from an external webpage. At a glance, I knew that Meteor invented a protocol called DDP which uses for handling real time connection. So then, what is DDP? "DDP (Distributed Data Protocol) is the stateful WebSocket protocol that Meteor uses to communicate between the client and the server." [1] All right! Why does DDP matter? "DDP is a standard way to solve the biggest problem facing client-side JavaScript developers: querying a server-side database, sending the results down to the client, and then pushing changes to the client whenever anything changes in the database" . [2] In order to understand deeply the protocol, I decided ...

Set up a web server for learning HTTP headers

Motivation We all follow the client-server model using the HTTP protocol for most of our web apps today. In development, we simply may have a backend API server and a frontend (web pages or mobile apps) only. However, it seemed that a proxy server is always required for production. In fact, most of the hardest issues in production come from integration. The requests and responses might be modified by the proxy server. Therefore, the understanding of HTTP protocol is one of the key skills to resolve those issues. I wanted to dive deep into HTTP with some core concepts such as caching, cookies, and CORS. I didn't intend to go quickly rather than moved slowly to have a well understanding of what I do. Prepare a server The easiest way is to use my laptop as a server then I can just use "localhost". I can also use ngrok to make my web server online. Finally, I use an online tool such as RedBot to check the HTTP headers. To make it more excited though, I deployed the app on A...

Validate date with Datejs

Datejs is an open source JavaScript Date library for parsing, formatting and processing. Website: http://www.datejs.com function isValid(date, pattern){ if(pattern == null){ return false; } var parseExact = Date.pareExact(date, pattern); if(parseExact !== null){ return true; } return false; } Another popular date library is Moment.js

Strategy Design Pattern

For example, I have a program with an Animal abstract class and two sub-classes Dog and Bird. I want to add new behavior for the class Animal, this is "fly". Now, I face two approaches to solve this issue: 1. Adding an abstract method "fly" into the class Animal. Then, I force the sub-classes should be implemented this method, something like: public abstract class Animal{ //bla bla public abstract void fly(); } public class Bird extends Animal{ //bla bla public void fly(){ System.out.println("Fly high"); } } public class Dog extends Animal{ //bla bla public void fly(){ System.out.println("Cant fly"); } } 2. Creating an interface with method "fly" inside. The same issue to an abstract class, I force the classes these implement this interface should have a method "fly" inside: public interface Flyable{ public void fly(); } public class Bird implements Flyable{ //bla bla public void fly(){ System.out.pr...

Managing JAR files with Apache Maven

Apache Maven (Maven) is a software project management and comprehension tool. Based on the concept of a project object model (POM), Maven can manage a project's build, reporting and documentation from a central piece of information. Why Maven? Let’s learn about the Maven’s history here https://maven.apache.org/background/history-of-maven.html to understand why Maven is created. There are a lot of useful things that we should use Maven. In my opinion, the most important thing is that Maven solves the problems with managing jar files. It centralizes these files in one place and it is easy to use by declaring dependencies in a xml file (pom.xml). Using Maven to manage JAR files Firstly, I would like to give you an example about using some JAR files without Maven. In my project, I need some JAR files such as SNMP4J.jar, jta26.jar, jgraphx.jar, etc… so I had to search them on the Internet with visiting a lot of websites, download and add these files into my proje...

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