Eloquent JavaScript
VS Code
CodePen
GitHub
Node.js
RegExr
JSFiddle
CodeSandbox
Langfuse
Helicone AI
LangSmith
LangChain
Openlayer
Braintrust.dev
Portkey
PromptLayer
Langfuse is an open-source LLM engineering platform designed to empower developers by providing insights into user interactions with their LLM applications. We offer tools that help developers understand usage patterns, diagnose issues, and improve application performance based on real user data. By integrating seamlessly into existing workflows, Langfuse streamlines the process of monitoring, debugging, and optimizing LLM applications. Our platform's robust documentation and active community support make it easy for developers to leverage Langfuse for enhancing their LLM projects efficiently. Whether you're troubleshooting interactions or iterating on new features, Langfuse is committed to simplifying your LLM development journey.
Eloquent JavaScript LangfuseBased on our record, Eloquent JavaScript should be more popular than Langfuse. It has been mentiond 218 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.
If you havenโt read Eloquent JavaScript , go check it out. Itโs one of my all-time favourite programming books โ hands down. - Source: dev.to / 9 months ago
Videos, blogs, text-based teachings, YouTube project-based learning, books, and the like are all examples of various methods and mediums of acquiring skills, especially in the software engineering industry. As I continue to navigate this challenge, I've made major changes, one being that I will now document the journey, and the other, I switched to reading books on JavaScript. I currently use the book ELOQUENT... - Source: dev.to / over 1 year ago
Seconded. I won't recommend it and no one I know has recommended it for a decade. It's hard for someone who doesn't know JS to know which parts has changed and is no longer the way to do things. https://github.com/getify/You-Dont-Know-JS are the 2 best source for learning JS. If you don't have time to read both, just go with https://eloquentjavascript.net/ If one needs to go further, go through... - Source: Hacker News / almost 2 years ago
> Do you have any tip for learning js at it's fundamentals? I would recommend: - https://eloquentjavascript.net/ - https://javascript.info/. - Source: Hacker News / almost 2 years ago
Eloquent JavaScript is a free online book by Marijn Haverbeke. It's a great resource for learning JavaScript from scratch, with a focus on writing clean and effective code. - Source: dev.to / almost 2 years ago
In this project we will build a Python banking assistant agent using Strands Agents and make it observable and continuously evaluated using Langfuse โ step by step. - Source: dev.to / 11 days ago
Langfuse is the open-source standard for LLM observability. It traces every LLM interaction โ prompts, completions, latency, token usage, cost โ and provides the tooling to debug, evaluate, and optimize LLM applications in production. Think of it as "Datadog for LLM calls" with a focus on prompt engineering workflows. - Source: dev.to / 29 days ago
You're monitoring production traffic. You need Langfuse / Phoenix / Helicone / Braintrust for that. Online eval is a different problem class: implicit feedback, drift detection, hallucination rates on your data, not on HellaSwag. - Source: dev.to / about 1 month ago
Gateway or proxy attribution. A reverse proxy in front of the model-provider API records the request, computes the cost, and exposes per-customer breakdowns. Open-source options include Helicone, LiteLLM, Langfuse, and OpenLLMetry. Hosted equivalents serve as the AI cost observability layer for teams that want centralized visibility: LangSmith, Datadog LLM Observability, Arize Phoenix. Adds a network hop.... - Source: dev.to / about 1 month ago
Same approach works with Langfuse, Phoenix, Braintrust, or your existing OTel pipeline โ the metadata.userId pattern is the universal part. - Source: dev.to / about 2 months ago
VS Code - Build and debug modern web and cloud applications, by Microsoft
Helicone AI - Open-source LLM Observability for Developers
CodePen - A front end web development playground.
LangSmith - Build and deploy LLM applications with confidence
GitHub - Originally founded as a project to simplify sharing code, GitHub has grown into an application used by over a million people to store over two million code repositories, making GitHub the largest code host in the world.
LangChain - Framework for building applications with LLMs through composability
