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Photograph: Simon Hill A Quick Word on eSIM Apple has supported eSIM technology since the iPhone XS. It’s basically an electronic SIM card instead of the tiny, physical chip you insert into your phone for cellular connectivity. The iPhone 14 series was the first to completely get rid of the physical SIM card slot (in…
In today’s post, I want to share my experience building a Gratuity Calculator. The goal of the project was simple: help employees easily calculate gratuity based on salary and years of service. While the calculator itself worked fine, I realized one major feature was missing:Social Media Sharing Buttons so that users can share their calculated…
The original version of this story appeared in Quanta Magazine. The Chinese AI company DeepSeek released a chatbot earlier this year called R1, which drew a huge amount of attention. Most of it focused on the fact that a relatively small and unknown company said it had built a chatbot that rivaled the performance of…
Disclosure: This post includes affiliate links; I may receive compensation if you purchase products or services from the different links provided in this article. Hello folks, System design interviews are a crucial part of technical hiring, especially for senior engineering roles. When preparing for these interviews, two of the most popular resources are ByteByteGo by…
On an earnings call this summer, Meta CEO Mark Zuckerberg made an ambitious claim about the future of smart glasses, saying he believes that someday people who don’t wear AI-enabled smart spectacles (ideally his) will find themselves at a “pretty significant cognitive disadvantage” compared to their smart-glasses-clad kin. Meta’s most recent attempt to demonstrate the…
Hey Dev.to! 👋 I’m 12 years old and I’ve been coding for 2 years. Last month, I set myself a challenge: build 5 complete projects in 30 days using HTML, CSS, JavaScript, PHP, and React. Here’s what happened—and what I learned: 1️⃣ Start Small, Finish Fast Instead of aiming for huge apps, I broke ideas…
Today is Expand.That means: add “depth” to what already exists. Good additions: Let users edit or delete what they made Show them what happened (notifications) Add retries that don’t break things Bad additions: Refactors that touch everything New concepts that don’t belong here “Since we’re in the code…” detours The temptation is real; who hasn’t…
Please find the previous class if you missed that here. This week we looked at Linux Admin Essentials. Let’s dive in shall we? Linux Administration Essentials Linux powers the majority of web servers, enterprise systems, and cloud platforms worldwide. Its reliability, flexibility, and security make it the operating system of choice for businesses and developers…
Automating Partition Cleanup in Oracle with PL/SQL and DBMS Scheduler The procedure begins by reading from the configuration table CMN_DROP_PARTITION, which defines which partitioned tables need cleanup, how many partitions should be retained, and which partitions must be excluded. For each active table entry, it retrieves the table owner, table name, and retention count. Next,…
Imagine a world where instead of trusting a centralized database, every record you access is validated, immutable, and visible to all. Sounds futuristic? That’s what blockchain promises—but is it really a practical alternative to traditional databases like MySQL, PostgreSQL, or MongoDB? Let’s break it down. Why People Consider Blockchain as a Database Immutability: Once data…
