Irrespective of the type, a runtime will usually consist of the following;
Web APIs provide access to functionalities like the DOM, timers, and fetch.
The callback queue is tasked with storing callbacks from the Web APIs.
Job queue tasked with storing await operations and promises.
An event loop tasked with checking job queues and callbacks and pushing them to the engine when the queues are empty.
Drop-in Node.js compatibility: Using Bun, you can configure all your node modules on the package.json.
TypeScript support: Bun allows you to execute all the files with .tsx and .ts extensions without extra configuration.
Watch mode: Add the –watch flag to your code, and Bun will automatically restart the process when any imported file changes.
This software has several built-in tools like a test runner, a code linter to help you avoid bugs, and a code formatter to make your code readable and presentable. The platform is built for the cloud, allowing you to deploy your app using Deno Deploy or any other cloud service that suits your needs.
Consistent code: Deno has standard APIs, ensuring that the code that flows between the browser and the backend is consistent.
High-performance networking: Deno offers out-of-the-box HTTP2, Websockets, and HTTPS support.
Deno is compatible with cloud services like Microsoft Azure, Cloudflare, AWS Lambda distribution, Google Cloud Run, etc.
Non-blocking and asynchronous
Event-driven and single-threaded
Comes with Node Package Manager (NPM)
Node.js is designed to handle multiple concurrent connections within a single server. When the tool performs an I/O operation like accessing the database, the tool resumes operations when the response comes back rather than blocking the thread and wasting CPU cycles.
Fast as it uses the Google V8 engine and Rust
Designed to handle data and external APIs as it comes with encoding, parsing, and transforming features
Secure and efficient multi-tenancy
Powerful distributed system primitives
Compatible with Node.js and NPM
Packaged as a Node.js module, but you can also embed it on a system
Comes with a C API
The engine is based on a multi-tiered architecture. This architecture has parallel JIT compilers that produce highly optimized code, an interpreter that aids in fast setup, and a concurrent background GC that allows high UI responsiveness in applications.
WasmEdge is an extensible, lightweight WebAssembly runtime for edge, cloud-native, and decentralized applications. This runtime powers embedded functions, serverless apps, IoT devices, smart contracts, and microservices.
The platform offers a well-defined execution sandbox for the WebAssembly byte code program. This software protects and isolates operating system resources like processes, environment variables, sockets, and file systems.
Easy to embed in a host application
Cloud-native management and orchestration
Ts-node is a REPL for Node.js and a TypeScript execution engine. This tool allows developers to execute TypeScript on Node.js without going through the compilation phase. Ts-node checks your node version and automatically provides defaults that match it.
Integrates with CLI tools, test runners, and debuggers
Allows use of third-party transpilers
Automatic tsconfig.json parsing
Read Evaluate Print Loop (REPL) that takes a single expression as user input and returns the results to the console after execution.
Ts-node is designed to support a variety of options. You can specify these options programmatically, as environment variables, through tsconfig.json, or as CLI flags. The tsconfig.json method is the most preferred.
Optimized for low memory consumption
ECMAScript 5.1 standard compliance
Written in C99 for maximum portability
This engine offers various configuration options which you can use to turn specific features on/off. You can change the option’s configuration value by adding CMake definitions, using arguments in the tools/build.py script, or presenting specific C preprocessor definitions.
Narendra Mohan Mittal
Narendra Mohan Mittal is a Senior Digital Branding Strategist and Content Editor with over 12 years of versatile experience. He holds an M-Tech (Gold Medalist) and B-Tech (Gold Medalist) in Computer Science & Engineering.
Python is a very versatile language, and Python developers often have to work with a variety of files and get information stored in them for processing. One popular file format you’re bound to encounter as a Python developer is the Portable Document Format popularly known as PDF