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JavaScript VS Deno

Compare JavaScript VS Deno and see what are their differences

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Contents:
  1. ยป Base Details
  2. ยป Videos
  3. ยป Reviews
  4. ยป Alternatives

JavaScript logo JavaScript

Lightweight, interpreted, object-oriented language with first-class functions

Deno logo Deno

A secure runtime for JavaScript and TypeScript built with V8, Rust, and Tokio.
  • JavaScript Landing page
    Landing page //
    2023-08-05

We recommend LibHunt JavaScript for discovery and comparisons of trending JavaScript projects.

  • Deno Landing page
    Landing page //
    2023-10-15

JavaScript features and specs

  • Wide Browser Support
    JavaScript is supported by all modern web browsers without the need for any plugins, making it highly versatile for client-side scripting.
  • Asynchronous Programming
    JavaScript supports asynchronous programming with features like callbacks, Promises, and async/await, which helps in efficiently handling tasks such as HTTP requests.
  • Rich Ecosystem and Libraries
    The JavaScript ecosystem includes a vast amount of libraries and frameworks like React, Angular, Vue, and Node.js, which streamline development processes.
  • Community Support
    JavaScript has a large and active community, providing extensive resources, documentation, and forums for troubleshooting and development advice.
  • Event-Driven
    The language is inherently event-driven, making it suitable for developing interactive web applications that react to user inputs.
  • Full-Stack Development
    With the advent of Node.js, JavaScript can be used for both client-side and server-side development, enabling full-stack development using a single language.

Possible disadvantages of JavaScript

  • Security Issues
    Being an interpreted language that runs in the browser, JavaScript code is visible to the user, making it susceptible to security risks such as Cross-Site Scripting (XSS).
  • Browser Compatibility
    While JavaScript itself is widely supported, different browsers may implement JavaScript functions and standards differently, leading to compatibility issues.
  • Performance
    JavaScript is generally slower than compiled languages such as C++ or Java. Heavy computations can lead to performance bottlenecks.
  • Single Inheritance
    JavaScript uses prototypal inheritance instead of classical inheritance, which can be confusing for developers coming from object-oriented programming backgrounds.
  • Dynamic Typing
    JavaScript's dynamic typing can lead to runtime errors that are hard to debug, as variable types are checked at runtime rather than during compilation.
  • Fragmentation
    The ecosystem has many competing libraries, frameworks, and tools, which can make it overwhelming for developers to choose the right technologies for their projects.

Deno features and specs

  • Security
    Deno has a secure-by-default approach, requiring explicit permission for file, network, and environment access, which reduces the risk of malicious code.
  • Built-in Tooling
    Deno includes built-in tools like a dependency inspector, a code formatter, and a test runner, reducing the need for additional setup.
  • Modern JavaScript/TypeScript
    Deno supports modern JavaScript and has built-in TypeScript support, making it easier to work with contemporary codebases without additional configuration.
  • Simplified Module Management
    Deno uses URLs for importing modules, eliminating the need for a package manager like npm and simplifying dependency management.
  • Compatibility with Web Standards
    Deno aims to be browser-compatible, adhering closely to web standards like the Fetch API, making it easier to share code between the server and the client.

Possible disadvantages of Deno

  • Ecosystem Maturity
    Deno's ecosystem is relatively new compared to Node.js, resulting in fewer libraries, tools, and community resources.
  • Breaking Changes
    Due to its rapid development, Deno can have breaking changes between versions, potentially requiring more frequent updates and code adjustments.
  • Performance
    Deno's performance may not match that of optimized Node.js applications, especially for certain workloads where Node.js has been highly tuned.
  • Learning Curve
    Even though Deno is designed to be familiar to JavaScript and TypeScript developers, it introduces new concepts (like secure-by-default) that may require a learning curve.
  • Limited Enterprise Adoption
    Being relatively new, Deno has limited enterprise adoption, which might make it less appealing for large-scale or long-term projects that rely on a robust support ecosystem.

Analysis of Deno

Overall verdict

  • Deno is a strong option for developers who prioritize security and modern JavaScript/TypeScript features. Its out-of-the-box toolchain can simplify development by reducing dependencies on external libraries and tools.

Why this product is good

  • Deno is designed to address some of the shortcomings of Node.js. It includes built-in TypeScript support, a secure-by-default runtime, module management using URLs instead of package managers like npm, and built-in utilities for tasks such as linting, formatting, and testing.

Recommended for

    Deno is recommended for developers who are starting new projects that can benefit from its modern approach, those who prioritize security, and developers who prefer using TypeScript. However, for large-scale projects that depend heavily on Node.js's extensive package ecosystem, the transition might require additional considerations.

JavaScript videos

+ Add

Learn JavaScript in 7 minutes | Create Interactive Websites | Code in 5

More videos:

  • Review - Top 10 JavaScript Interview Questions
  • Review - Learn JavaScript in 12 Minutes

Deno videos

+ Add

Why nobody is using Deno?

More videos:

  • Review - What is Deno & Will it replace Node.js?
  • Review - Will Deno replace Node.js: Which programming language is better? | TechLead

Category Popularity

0-100% (relative to JavaScript and Deno)

JavaScript

Deno

Programming Language
100 100%
Programming Language
0% 0
Typescript
0 0%
Typescript
100% 100
OOP
100 100%
OOP
0% 0
JavaScript
0 0%
JavaScript
100% 100

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare JavaScript and Deno

JavaScript Reviews

Top 10 Rust Alternatives
In simple words, the main goal of JavaScript is to develop web pages and is used for authentication procedures. Some of the pros of using JavaScript as an alternative to Rust are follows.
Source: blog.back4app.com
Top 15 jQuery Alternatives To Know
ExtJS, as the name suggests, stands for Extended JavaScript. As an offering from Sencha, it depends on YahooUserInterface. ExtJS helps in creating data intensified HTML5 apps with JavaScript. It consists of a huge collection of customizable and high-performance widgets that assist in creating cross-platform mobile and web apps, for any type of modernized device.
Source: www.spec-india.com
The 10 Best Programming Languages to Learn Today
JavaScript skills are always in high demand โ€“ most of the world's top websites and apps rely on JavaScript in one way or another. Plus, JavaScript is a great springboard for learning more complex programming languages.
Source: ict.gov.ge

Deno Reviews

We have no reviews of Deno yet.
Be the first one to post

Social recommendations and mentions

Based on our record, Deno seems to be more popular. It has been mentiond 201 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

JavaScript mentions (0)

We have not tracked any mentions of JavaScript yet. Tracking of JavaScript recommendations started around Mar 2021.

Deno mentions (201)

  • 100 Most Useful Open Source Projects
    Deno โ€” https://deno.land Technology: JavaScript/TypeScript runtime. Backed / sponsored by: Deno Company + open source community. How to generate revenue: Paid hosting, enterprise support, managed Deno services, training. Description / details: Secure by default runtime by Nodeโ€™s original author; integrates TypeScript natively. - Source: dev.to / 10 months ago
  • Benchmarking in Node.js vs Deno: A Comprehensive Comparison
    Deno.bench("URL parsing", () => { new URL("https://deno.land"); }); Deno.bench("Async method", async () => { await crypto.subtle.digest("SHA-256", new Uint8Array([1, 2, 3])); }); Deno.bench({ name: "Long form", fn: () => { new URL("https://deno.land"); }, }); Deno.bench({ name: "Date.now()", group: "timing", baseline: true, fn: () => { Date.now(); }, }); Deno.bench({ name:... - Source: dev.to / over 1 year ago
  • Deno 2.0 REST API Explained: Faster, Secure JavaScript Development
    // Importing the serve function from Deno's standard library Import { serve } from "https://deno.land/std@0.196.0/http/server.ts"; // Function to handle requests Async function handler(req: Request): Promise { const { pathname, searchParams } = new URL(req.url); // Handling different routes if (pathname === "/api/greet" && req.method === "GET") { const name = searchParams.get("name") ||... - Source: dev.to / almost 2 years ago
  • Building a Simple Todo App with Deno and Oak
    Import { Application, Router } from "https://deno.land/x/oak/mod.ts";. - Source: dev.to / almost 2 years ago
  • LogTape: Zero-Dependency Logging for JavaScript That Just Works
    LogTape is a shiny new logging library for JavaScript and TypeScript that's designed with one goal in mind: to make logging simple, flexible, and hassle-free across all your JavaScript environments. Whether you're building applications for Deno, Node.js, Bun, edge functions, or browsers, LogTape has got you covered. - Source: dev.to / almost 2 years ago
View more

What are some alternatives?

When comparing JavaScript and Deno, you can also consider the following products

Python - Python is a clear and powerful object-oriented programming language, comparable to Perl, Ruby, Scheme, or Java.

Bun.sh - Bun is an all-in-one JavaScript runtime & toolkit designed for speed, complete with a bundler, test runner, and Node.js-compatible package manager.

Java - A concurrent, class-based, object-oriented, language specifically designed to have as few implementation dependencies as possible

Node.js - Node.js is a platform built on Chrome's JavaScript runtime for easily building fast, scalable network applications

PHP - A popular general-purpose scripting language that is especially suited to web development

Fresh Framework - Fresh is a next generation web framework, built for speed, reliability, and simplicity.

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