Cricket Analogy Breaks Down How Hubs, Switches, and Routers Actually Work

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A developer-focused explainer published on DEV Community uses cricket player roles to demystify common networking devices and concepts. A hub is compared to a player with no situational awareness — it blindly broadcasts incoming data to every connected device rather than targeting a specific recipient. A switch improves on this by maintaining a MAC address table, allowing it to send data directly to the correct device on the same network. Routers serve a distinct function by connecting separate networks, such as linking a home network to the broader internet. The article also covers supporting concepts including IP addresses, subnet masks, NICs, and the RJ45 connector to give beginners a fuller picture of how networks are structured.

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Strong CSS architecture starts with defining what CSS should never do

A DEV Community article argues that the foundation of robust CSS architecture lies not in defining capabilities, but in declaring explicit exclusions upfront. The author illustrates how design token systems quietly accumulate misuse — such as storing application state inside CSS custom properties — because nothing in the system is built to refuse such decisions. Without predefined boundaries, stylesheets gradually absorb logic and state that belong elsewhere, making systems harder to maintain over time. The piece contends that exclusions are not gaps in architecture but its most durable component, acting as guarantees rather than limitations. A system that never defines what it will not do, the author warns, will eventually be pressured into doing everything.

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ProgrammingDEV Community ·

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ProgrammingDEV Community ·

GDPR, HIPAA, SOC 2: What Regulated Industries Must Know About Password Managers

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ProgrammingDEV Community ·

Good CSS Architecture Requires Defining What CSS Should Never Do

Strong CSS architecture depends not just on what a system can do, but on explicitly deciding what it must never do. Without declared exclusions, systems tend to accumulate unintended responsibilities over time, such as storing application state inside design tokens. A custom property tracking modal state looks syntactically identical to a spacing token, yet represents a fundamentally different concern that CSS has no business managing. Since browsers cannot distinguish between the two, the refusal must come from deliberate architectural decisions made in advance. Systems that define clear boundaries and exclusions are more maintainable and resilient than those that only react after problems emerge.

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