Parse notes
A testing strategy that relies heavily on end-to-end tests can cause a lot of issues in reality. While end-to-end tests seem like a good idea in theory, they often lead to delays in bug identification and fixes, as well as flaky test results. Instead, a better approach is to focus on unit tests and integration tests, which are often faster and more reliable.
Rate limiting is used to control traffic on a service by blocking requests that exceed a set limit. Three common algorithms for rate limiting are fixed windows, sliding windows, and token buckets. Fixed windows are easy to understand and implement, sliding windows are better for high traffic, and token buckets allow for bursts of traffic while enforcing a long-term average rate.
JSDoc is used to document JavaScript packages. It helps users understand how to use your code and provides additional context within their workflow. The key is to provide clear and concise information: write succinct summaries, include accurate type information, use tags to describe parameters and return values, and provide examples for clarity.
System tests often fail to live up to their promise. They are slow, prone to errors, and rarely provide a good return on investment. While they can be useful for basic functionality checks, they are not the best tool for testing business logic or UI interactions compared to manual testing.
Engineers give their opinion on how YouTube seems to stream video for free. Google has special relationships with major US ISPs to get low bandwidth costs and also have the advantage of scale.
This developer used a waitlist approach to validate the demand for their failed product, PresetBot, an API to apply Lightroom presets on images. They used Google Ads to drive traffic to a landing page, but after attracting 250 signups and building the product, no one purchased it. The developer realized that most of the signups were likely from bots and click farms.
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Got a Next.js project in the works? Check out Netlify's recent launch of Next.js Runtime v5 [11]—focused on improving site reliability, performance, and ease of maintenance. Developers now have access to powerful features [11] such as App Router, automatic fine-grained caching, on-demand + time-based revalidation, and more.
Bend is a massively parallel, high-level programming language. It has the feeling and features of Python while also having the speed and parallelization capabilities of lower-level languages.
Lightweight Charts is an easy way to display interactive charts online with HTML5. It keeps web page loading speeds low and the size of the library is close to static images.
Remix and React Router are converging, with Remix's features being integrated into React Router v7 to streamline the upgrade process for users.
OpenAI's announcement of GPT-4o's new talking ability was overshadowed by the resignation of two key figures on its superalignment team, Ilya Sutskever and Jan Leike. While Sutskever gave a standard resignation message, Leike resigned due to conflicts about the direction OpenAI was going safety-wise.
This developer created cursive handwriting for their web projects. They created a tool to manually define paths for each letter, then adjusted these paths based on the surrounding letters to connect them smoothly.
Usage-based pricing is great for core infrastructure for applications, where the growth of your customers' business means their spend with your business will also grow. Subscription pricing works best for end-user tools that help a certain function do their job better.
Even if you are happy in your current job, it is useful to occasionally interview at other companies because it allows you to better assess your current role and potential opportunities while keeping your skills sharp in case you need to look for a new job later.
100 exercises to learn Rust's core concepts, syntax, type system, standard library, and ecosystem.
GitHub open-sourced Dependabot, which is a tool it uses to monitor and update the dependencies of projects hosted on its platform.
A recent Cisco study revealed that developers are spending 57% of their time troubleshooting application performance issues instead of innovating due to a lack of tools and visibility into the IT environment.