Deno and Node

Deno and node in both of them whose are better for learning, let’s see the difference of both of them.

  • Deno are uses rust under the hood but also use V8 engine just like Nodejs.
    In Node.js, you can load CommonJS modules using the require keyword and they all are, standard and third-party, and they implicitly come from
  • Deno are not supported NPM packages and also not support node modules directory, but Deno can load ES modules using the import keyword and explicitly state the URL. As compare to node, Deno are asking for system to executed the code.
    In Nodejs we can use a language JavaScript but in Deno we can use JavaScript and typescript both.
  • Machine Execution in Deno are Tokio, rusty_v8 bindings and other libraries written in Rust.
    In nodejs machine execution are Libuv + other patching libraries maintained by node project.

We can see both the language as a security purpose so Nodejs is that once node app is running it can easily access the file system but in the other hand Deno provide command line flag ‘-allow-net’ to give access to all external permissions for script and Deno are also uses command-line arguments to allow or disable access to different security features.

Deno is a secure runtime for JavaScript and Typescript that is based on the Rust programming language and the deno is created by Ryan Dahl. Two years development deno finally reached version 1.0 in May2020, deno supports all web worker API, Workers can be used to run code on multiple threads.

Deno have a new way to manage module nodejs has a bloated package.json file a lock file, deno has code. In web, deno has no centralized package repository, such as NPM. Instead file are imported where needed and downloaded when they do not exist in the module cache. Six Companies reportedly use deno in their tech stacks, including the lonero foundation, cloudless and SOLID engineer. Deno has mainly features- They are Dependency inspector, Code formatter, Bundling, Runtime type info.

Deno are runtime built on Google’s V8 JavaScript engine, the same engine used in Google Chrome. They have internal event loops and provide command-line interfaces for running scripts and a wide range of system utilities. Though deno performs better in the -c100 test, which means deno is doing better than node in a higher traffic network.

Bootstrap is a front-end framework used to create modern websites and web apps. Bootstrap is open-source and free to use,and in this bootstrap we have HTML and CSS templates for UI interface elements. Bootstrap also supports Javascript extensions. Bootstrap has so many versions but recently bootstrap has released a new version is Bootstrap5 alpha. Many important changes have been made in this version. Bootstrap 5 alpha was released in june 2020.

The Bootstrap 5 framework has dropping jQuery in favor of vanilla javascript. It saved 85KB of minified Javascript, which could be significant as google starts to use page speed as a ranking factor for mobile web sites and soon for desktop web sites.Bootstrap team does this because Bootstrap5 also no longer supports Internet Explorer.Besides dropping jQuery, Bootstrap5 also brings some notable feature.

Bootstrap 5 has an updated UI look and feel to focus more on-page content. It has a redesigned and better-looking set of custom form controls. For web sites that make heavy use of icons, the new SVG allow developers to load all icons in a single SVG file and then use them as needed.Bootstrap 5 has also added a new CSS custom properties and in this bootstrap 5 they have also improved customizing docs.

WordPress is a free and open-source content management system and they paired with a MySQL or MariaDB database. It stores content and enables a user to create and publish WebPages, requiring nothing beyond a domain and a hosting service. WordPress has a web templates system using a template processor. Its architecture is a front-controller, routing all requests for non-static URIs to a single PHP file which parse the URI and identifies the target page.

Although WordPress was released on 27 may 2003, but since then many versions of WordPress have come and recently a new version has come WordPress5.5 In this version they added lazy-loading images, XML sitemaps by default, auto-updates to plugins and themes and improvements to the block editor. On mobile, lazy loading can also keep browsers from loading large files meant for other devices, saving battery life and data usage. WordPress 5.5 includes an XML sitemap that helps search engines discover your content when it goes live.

The Dash icons library has received its final update in 5.5. It adds 39 block editor icons, along with 26 others. In WordPress 5.5 they are also introduced to a new block-based editing environment which is called the block-editor. Besides a few changes in the UI, this release introduces us to block patterns and the new block directory. This directory contains WordPress plugins that can add new blocks to your editor and the you can also find lots of new blocks available.

Blockchain technology bitcoin block explorer service. A blockchain is a digital record of transactions. The name comes from its structure are linked together in single list, called a chain. Blocks on the blockchain are made up of digital pieces of information, Blocks stored information about transactions like the time, date and the dollar amount of your recent purchase from amazon.

A single block on the bitcoin blockchain can actually store around 1mb data, depending on the size of  transactions. Basically Blockchain are based on peer to peer topology. Blockchain is a distributed ledger technology that allows data to be stored globally on thousands of servers. Block stores new data it is added to the blockchain,with the other public records of information,  like the securities exchange commission, wikipedia, or your local library there are someone in charge of waiting a new data entries.

Each computer in the blockchain network has its own copy of the blockchain  which means they are thousands.  Although each copy of the blockchain is identical, Blockchain technology accounts for the issues  of security and trust in several ways,new blocks are always stored linearly and chronologically.  Traditional centralized database needs to only checks the data once but the blockchain needs to check the data thousands of times.