Andrew French


Deno Advanced Development Notes

Reading notes

As of late August 2020, this notebook tutorial is used Deno@v1.3.1. If you need to run the demo instance locally, please ensure that the local operating environment on your computer isDeno@v1.3.1

Book goal

  • An Denointroductory tutorial on technology development
  • From a practical 应用开发level, to learn Denoto use, it will not go into the underlying principle
  • To Denothe ability of native implementation-dependent code does not rely on deno_std(except for unit testing)
  • To TDDdevelop model combines integration testing to ensure that the example demo adapt production environments

About the author


At present, the content of this book belongs to study notes and is not recommended for use in a production environment. Because the Denoofficial functions are in the development stage, this book is and will be in the update stage for a long time. The code content in it is not recommended to be used in the production environment, but I also hope that developers can use it in the production environment and share relevant practical experience.

Book agreement LICENSE MIT

table of Contents

Why write this book

  • 2020 impressions
  • The official Deno API has basically stabilized, and it is officially announced that it will release version 1.0 on the occasion of the second anniversary of May 13, 2020
  • Deno official also published API usage document Deno official API document
  • It means that Deno is approaching perfection and its subsequent use in the production environment is just around the corner
  • 2019 impressions
  • Since Deno was born in June 2018, it has triggered intense discussions in the JavaScript development community. Many developers have misunderstood and even rumored that the rygreat god will Denobe the next generation Node.js, and even made a ridiculous issuebuilding farce.
  • From the end of 2018 to the beginning of 2019, in the JavaScript community, Deno’s related discussions gradually faded, and more talk about TypeScriptwhether it will lead the next wave of front-end development trends and even Denotake off.
  • Since there are new things to play, no matter what others talk about, the tools are good or not until you use them. Facing a new technology, it is not the behavior that a technology developer should do.
  • Taking advantage of the 2019 Spring Festival at home, make good use of this “winter vacation” to play with this new technology. As of early 2019, there Denoare too few domestic and foreign data.
  • In addition to the “Deno Core Guide” and the corresponding denoliblearning documents recommended by the GitHub organization that are more constructive, in addition to the lack of deno development materials.
  • DenoThe basic module and the official standard module deno_std deno_std are in an unstable state during development, with a lot// TODO of code and APIthe uncertainty of frequent changes.
  • Abruptly eating several foreign countries during the 2019 Spring Festival Denopilot project warehouse. I wrote this “Deno Advanced Development Notes”, firstly as Denoa note record for my own study , and secondly, I hope to Denocontribute to the development community.

Features of this book

Since the Denoofficial purpose is to provide efficient, secure scripting environment for modern programmers. The daily WEBdevelopment of this book and the realization of common functions of tool development are the main.

  • TDDExamples of development, are examples of functions in TDD(Test-Driven Development)the development of model-based, a functional module, with the corresponding test units.
  • Travis CI build, Used to integrate Linuxall unit tests in the build test environment
  • Azure Pipelines, Used to integrate Window|Mac|Ubuntuall unit tests in the environment to build and test to ensure that the examples can be executed normally in each production environment.

Download Details:

Author: chenshenhai


Source Code:

#deno #nodejs #javascript #node

What is GEEK

Buddha Community

Deno Advanced Development Notes
Fredy  Larson

Fredy Larson


How long does it take to develop/build an app?

With more of us using smartphones, the popularity of mobile applications has exploded. In the digital era, the number of people looking for products and services online is growing rapidly. Smartphone owners look for mobile applications that give them quick access to companies’ products and services. As a result, mobile apps provide customers with a lot of benefits in just one device.

Likewise, companies use mobile apps to increase customer loyalty and improve their services. Mobile Developers are in high demand as companies use apps not only to create brand awareness but also to gather information. For that reason, mobile apps are used as tools to collect valuable data from customers to help companies improve their offer.

There are many types of mobile applications, each with its own advantages. For example, native apps perform better, while web apps don’t need to be customized for the platform or operating system (OS). Likewise, hybrid apps provide users with comfortable user experience. However, you may be wondering how long it takes to develop an app.

To give you an idea of how long the app development process takes, here’s a short guide.

App Idea & Research


_Average time spent: two to five weeks _

This is the initial stage and a crucial step in setting the project in the right direction. In this stage, you brainstorm ideas and select the best one. Apart from that, you’ll need to do some research to see if your idea is viable. Remember that coming up with an idea is easy; the hard part is to make it a reality.

All your ideas may seem viable, but you still have to run some tests to keep it as real as possible. For that reason, when Web Developers are building a web app, they analyze the available ideas to see which one is the best match for the targeted audience.

Targeting the right audience is crucial when you are developing an app. It saves time when shaping the app in the right direction as you have a clear set of objectives. Likewise, analyzing how the app affects the market is essential. During the research process, App Developers must gather information about potential competitors and threats. This helps the app owners develop strategies to tackle difficulties that come up after the launch.

The research process can take several weeks, but it determines how successful your app can be. For that reason, you must take your time to know all the weaknesses and strengths of the competitors, possible app strategies, and targeted audience.

The outcomes of this stage are app prototypes and the minimum feasible product.

#android app #frontend #ios app #minimum viable product (mvp) #mobile app development #web development #android app development #app development #app development for ios and android #app development process #ios and android app development #ios app development #stages in app development

Mitchel  Carter

Mitchel Carter


Developer Career Path: To Become a Team Lead or Stay a Developer?

For a developer, becoming a team leader can be a trap or open up opportunities for creating software. Two years ago, when I was a developer, I was thinking, “I want to be a team leader. It’s so cool, he’s in charge of everything and gets more money. It’s the next step after a senior.” Back then, no one could tell me how wrong I was. I had to find it out myself.

I Got to Be a Team Leader — Twice

I’m naturally very organized. Whatever I do, I try to put things in order, create systems and processes. So I’ve always been inclined to take on more responsibilities than just coding. My first startup job, let’s call it T, was complete chaos in terms of development processes.

Now I probably wouldn’t work in a place like that, but at the time, I enjoyed the vibe. Just imagine it — numerous clients and a team leader who set tasks to the developers in person (and often privately). We would often miss deadlines and had to work late. Once, my boss called and asked me to come back to work at 8 p.m. to finish one feature — all because the deadline was “the next morning.” But at T, we were a family.

We also did everything ourselves — or at least tried to. I’ll never forget how I had to install Ubuntu on a rack server that we got from one of our investors. When I would turn it on, it sounded like a helicopter taking off!

At T, I became a CTO and managed a team of 10 people. So it was my first experience as a team leader.

Then I came to work at D — as a developer. And it was so different in every way when it came to processes.

They employed classic Scrum with sprints, burndown charts, demos, story points, planning, and backlog grooming. I was amazed by the quality of processes, but at first, I was just coding and minding my own business. Then I became friends with the Scrum master. I would ask him lots of questions, and he would willingly answer them and recommend good books.

My favorite was Scrum and XP from the Trenches by Henrik Kniberg. The process at D was based on its methods. As a result, both managers and sellers knew when to expect the result.

Then I joined Skyeng, also as a developer. Unlike my other jobs, it excels at continuous integration with features shipped every day. Within my team, we used a Kanban-like method.

We were also lucky to have our team leader, Petya. At our F2F meetings, we could discuss anything, from missing deadlines to setting up a task tracker. Sometimes I would just give feedback or he would give me advice.

That’s how Petya got to know I’d had some management experience at T and learned Scrum at D.

So one day, he offered me to host a stand-up.

#software-development #developer #dev-team-leadership #agile-software-development #web-development #mobile-app-development #ios-development #android-development

Christa  Stehr

Christa Stehr


Offshore Software Development - Best Practices

With the rise of globalization and the worldwide lockdown due to the pandemic, most of the work has been done by remote working processes and professionals from their homes. This lockdown has proved the efficiency of remote development and enhanced the trust in offshore software development industry.

To make the most out of the benefits of offshore software development, you should understand the crucial factors that affect offshore development. This is why you should read this guide for the best practices when hiring an offshore software development company. Despite the size and the industry of the business, offshore software development is not beneficial for every entrepreneur in many aspects to make the optimum use of talents in technology across the globe.

Here are some of the top reasons why offshore development is beneficial for your business.

  • Offshore development teams can work on flexible timing to provide you with the best possible software development practices.
  • Get access to the talents across the world from your home to develop the top of the line software with the help of offshore development companies.
  • Assured high quality and next-generation technology expertise with duly NDA signed with respect to the priorities of the business.
  • With flexible recruitment models, you can hire the freelance developers, remote development team, or an entire offshore development company with respect to the size of your business.
  • Build high-end software applications from one corner of the world by hiring software developers across the world.
  • Get immediate access to the best resources without hiring them on a permanent basis.

To avail of all these benefits, you should have clear goals, a list of requirements, and features that are mandatory for your software product.

Here are a few tips to help you find the best offshore software development company. Build a top-notch software application by following the listed best practices.

#web development #how to start offshore software development company #offshore meaning #offshore software development best practices #offshore software development company #offshore software development company in india #offshore software development cost #offshore software development statistics #outsource software development

aviana farren

aviana farren


IDO Development | Initial DEX Offering Development | IDO Development Platform

Initial DEX offering, commonly abbreviated as IDO, is a digital fundraising opportunity for the investors and business developers in a decentralized platform. IDO is the representation of the digital assets, with zero exchange fees being paid. Distributing tokens and fundraising are at ease through the IDO platform. IDO is considered as the combination of both ICO & IEO.

The benefits of IDO are as follows:

  • Fair & open fundraising opportunity
  • Immediate trading
  • Immediate liquidity
  • Safe & faster transaction
  • Affordable price
  • Low exchange fee

The steps involved in the Initial DEX offering development are as follows:

  • Roadmap creation: This step includes analyzing & characterizing the model, for making the model user-friendly and targeting the audience’s needs. It should also be beginner-friendly to make the beginner comfortable with the model…
  • White paper creation: The creation of the White paper should be carefully done as this is the important step. The creation means the features and the functionalities of the product. The features must satisfy the user demands at a convenient price.
  • Token development: The developers will specially design the tokens according to the customer request. The smart contact enabled, and blockchain like Ethereum makes the transaction more secure.
  • Listing tokens & marketing: It is necessary to choose the right decentralized exchange to list the tokens so as to reach the right audience. The marketing technique enables the selling of tokens to the next level.

Infinite Block Tech offers the Initial DEX offering development with a team of highly specialized blockchain engineers, and marketing specialists to deliver the best for the users. The cost of IDO development depends upon the features and functions demanded by the users. Thus, the cost may increase or decrease from one IDO development project to another. So, it’s the right time to step into our IDO development marketplace to raise the funds effectively.

#initial dex offering development #ido development #ido development platform #cost of ido development #ido development project #ido development marketplace

Cash Advance App Development - Launch Your Cash Advance App in Few Days!

One of the emerging online services that have created a massive demand is cash advance apps. People use the cash advance app because the app lets users avail of payday loans via smartphones and pay them back seamlessly via the online platform. Smartphones made people’s lives comfortable and more accessible, almost in every aspect digitizing all operations online.

Users enjoy doorstep services with just a few taps, be it shopping, ordering food, and availing for courier and repairing services, etc.

Easy approval
The usual practice of getting a loan is approaching a trusted bank in person and requesting a loan from them. Accessing and getting loan approval is complicated and a long term process, and it takes more time to sanction the loan. But, the cash app gives instant support and acceptance to the users, becoming people’s favorite. Cash advance apps provide instant approval, transferring funds to people’s accounts in no time.

Digitized operations
Gone are the days where banks used a load of paperwork to and fro from banks. The process and the assurance of keeping those data safe can be daunting and cannot be guaranteed 100%. There are higher chances of missing and mishandling those files. But with the cash advance app, there will be no necessity to handle such huge files; instead, operate all the data online with digital technology used in the app, thus reducing the burden.

Banks cannot provide flexibility when giving loans to people, especially with bank time constraints. But with the cash app, users can avail and get any financial help at any time, enhancing the flexibility and comfort for them. It offers service at any time, and at any day.

Providing zero commission fee
They offer loan charging with high interest in regular banks where people find it extremely difficult to pay with a commission fee. With the Cash advance app, Users need not pay any commission fee. This feature widely attracts audiences in no time.

The cash advance apps allow users to instantly access cash with zero commission and zero-interest providing easy accessibility and enhancing business by reaching users globally.

##money advance app development ##advance payday app development ##cash advance app development company