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IT Services Circle

Delivering cutting-edge internet insights and practical learning resources. We're a passionate and principled IT media platform.

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Latest from IT Services Circle

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IT Services Circle
IT Services Circle
Oct 10, 2026 · Fundamentals

Why .catch() Fails to Catch Sync Errors: Promise.try() & async Solutions

The article explains why .catch() doesn't catch synchronous exceptions thrown before a Promise is returned, illustrates common scenarios like validation and JSON.parse, shows debugging clues (Uncaught Error vs unhandledRejection), and presents solutions: Promise.try(), async functions, and try/catch with await, including browser/Node support and a polyfill for older runtimes.

Async/AwaitError HandlingJavaScript
0 likes · 15 min read
Why .catch() Fails to Catch Sync Errors: Promise.try() & async Solutions
IT Services Circle
IT Services Circle
Oct 10, 2026 · Fundamentals

What Regex Can't Do: SNOBOL Did It in 1962 with 32KB

This article explores SNOBOL, a 1962 string-processing language that pioneered first-class patterns, automatic garbage collection, a portable virtual machine, and associative arrays—features decades ahead of their time—yet lost to simpler regex-based tools like AWK and Perl.

Bell LabsGarbage CollectionSNOBOL
0 likes · 13 min read
What Regex Can't Do: SNOBOL Did It in 1962 with 32KB
IT Services Circle
IT Services Circle
Oct 9, 2026 · Backend Development

Why ZXing Became the Global Standard for QR Code Processing

ZXing is a 19-year-old open-source Java library that powers QR code scanning in WeChat, Alipay, and Android; it offers zero dependencies, a two-line API, multi-format support, and the fastest detection speed among open-source libraries, though it struggles with inverted colors and tiny codes.

AndroidJavaOpen Source
0 likes · 14 min read
Why ZXing Became the Global Standard for QR Code Processing
IT Services Circle
IT Services Circle
Oct 9, 2026 · Frontend Development

VS Code Adds Vite+ as Official Script Runner, Signaling Unified JS Toolchain

Microsoft's VS Code now officially supports Vite+ as a script runner, marking the toolchain's entry into the mainstream JavaScript ecosystem; Vite+ aims to unify fragmented tooling (TypeScript, ESLint, Prettier, Vitest, etc.) under a single `vp` command, leveraging Rust-based tools like Oxlint, Oxfmt, and Rolldown for faster, cohesive development workflows.

JavaScript toolchainOxlintRolldown
0 likes · 6 min read
VS Code Adds Vite+ as Official Script Runner, Signaling Unified JS Toolchain
IT Services Circle
IT Services Circle
Oct 5, 2026 · Databases

Redis Distributed Locks: 7 Critical Pitfalls and How to Avoid Them

This article details seven common pitfalls in Redis distributed locking, covering atomic acquisition, ownership verification, lease expiration, watchdog limitations, replication risks, Redlock assumptions, and the need for fencing tokens, with code examples and comparisons to ZooKeeper and etcd.

Martin KleppmannRedisRedisson
0 likes · 32 min read
Redis Distributed Locks: 7 Critical Pitfalls and How to Avoid Them
IT Services Circle
IT Services Circle
Oct 5, 2026 · Industry Insights

AI Writes Code, But Programmers Deliver Certainty

The article argues that despite AI coding tools boosting productivity, programmers remain essential because they provide certainty through understanding implicit requirements, making risk-aware decisions, and maintaining legacy system context—three dimensions where AI falls short.

AI codingSoftware Engineeringcertainty
0 likes · 6 min read
AI Writes Code, But Programmers Deliver Certainty