Deno specifically performs the function of runtime manager and package manager within a single executable instead of having a separate package management system.
Deno is more secure and It supports Typescript this is the reason that every software development company prefers deno over the node.
Deno js and its advantages/ importance
DenoJS aims to be a secure and productive scripting platform that will provide a simple experience for software developers of the modern age. NodeJS developers had raised many questions about the functionality of NodeJS. They had expressed concerns about Node’s protection, how Node treated packages, and other legacy APIs within Node that, among other things, never will change.
Benefits of using Deno
Some most important benefits of Deno’s compared to Node is given below:
- Secure by default: You need to give specific permission to access the device, network, or environment just like mobile applications. Despite this, you no longer need to be afraid of one corrupted package stealing your personal information.
- Simplicity: Deno ships to build your application as a single executable that provides everything you need. No need to set up a package.json file, or other external config files.
- Support for TypeScript out of the box: Deno has TypeScript at its core, which in several different ways provides a huge benefit like first-class TypeScript support.
- Built-in utilities such as a bundler and code formatter: In another way, there is no need for those tasks for external dependencies like Prettier or Webpack.
- Browser compatible API: Deno strives to be as browser-friendly as possible by including, for example, a built-in fetch and the global window object. Both of these advantages turn into two things. First, you boost developer experience dramatically, contributing to potentially shorter development cycles, and second, you reduce the likelihood of downtime and loss of data due to vulnerabilities from unsecured scripts.
Node.js suffers from three major problems with the design, according to Dahl:
- System module badly designed, with centralized distribution;
- Plenty of legacy APIs which must be supported;
- Less secure
Comparison between Deno js and node js
- Deno’s core written in Rust programming language (core emphasis on safety) and Tokyo. Nodejs had been on C++.
- Typescript is suitable for broad applications.
- ES6 import declarations a decentralized approach to the management of dependencies, whereas Node.js uses CommonJS
- No npm, meaning it doesn’t use any package manager like npm and doesn’t have the package.json for the module handling.
- Deno removes unmanaged exceptions which are not the case for NodeJS.
- Deno needs to have a clear device, network, and system access permissions.
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