Intermediate terms
Memory Pressure Detection PHP 7.0+
Proactively identifying when a PHP process approaches its memory limit so corrective action can be taken before a fatal error.
2d ago
performance intermediate
Database Query Result Streaming PHP 8.0+
Processing large result sets row-by-row without loading the entire dataset into memory - essential for PHP CLI scripts handling millions of rows.
5d ago
database intermediate
Error Recovery Patterns
Design strategies for gracefully handling failures and restoring system functionality without data loss or user disruption.
6d ago
general intermediate
NoSQL Injection PHP 5.4+
Attacker-controlled input embedded into NoSQL queries (MongoDB, Redis, Couchbase) that subverts query intent — bypassing auth, exfiltrating data, or executing server-side code.
CWE-943 OWASP A3:2021
1w ago
security intermediate
8.8
Prompt Caching
API feature where a static prompt prefix (system instructions, large context) is cached server-side, dramatically reducing cost and latency on repeated calls that share the prefix.
1w ago
ai_ml intermediate
Reasoning Models & Test-Time Compute
A class of LLMs trained to allocate extra inference-time compute to internal reasoning before answering, achieving large gains on math, code, and logic at the cost of latency and tokens.
1w ago
ai_ml intermediate
Server-Side Includes (SSI) Injection
Attacker-controlled SSI directives (`<!--#exec ... -->`) injected into pages parsed by Apache or another SSI-enabled server, achieving file disclosure or remote command execution.
CWE-97 OWASP A3:2021
1w ago
security intermediate
9.8
Internal Developer Platform (IDP)
A curated, self-service layer on top of cloud and CI/CD infrastructure that product teams use to ship services without filing tickets — paved roads that make the right thing the easy thing.
3w ago
devops intermediate
Load Balancer Types — L4 vs L7
Layer-4 load balancers forward raw TCP/UDP packets based on IP and port; layer-7 load balancers terminate HTTP and route based on paths, headers and cookies — different trade-offs for different traffic.
3w ago
cloud intermediate
Shadow DOM
A browser feature that attaches a scoped, encapsulated DOM subtree to an element — styles and IDs inside the shadow tree do not leak in or out, enabling true component isolation on the web.
3w ago
frontend intermediate
Software Composition Analysis (SCA)
The practice and tooling for identifying all open-source and third-party components in a codebase, detecting known vulnerabilities (CVEs) in them, and flagging licence risks — distinct from static analysis of your own code.
3w ago
security intermediate
Discriminated Unions 2.0 A union of types that each carry a shared literal field (the discriminant) allowing TypeScript to narrow exhaustively — the canonical way to model mutually exclusive states.
4w ago
typescript intermediate
Type Guards & Narrowing 2.0 Type guards are expressions that narrow a union type to a more specific type at runtime — telling TypeScript exactly which branch of a union you're in.
4w ago
typescript intermediate
async / await in JavaScript ES2017
async functions always return a Promise; await pauses execution inside an async function until a Promise settles — giving asynchronous code the readability of synchronous code without blocking the event loop.
4w ago
javascript intermediate
Brute-Force Protection
Defences against automated credential-guessing attacks — rate limiting login attempts, account lockout, CAPTCHA, and multi-factor authentication to make guessing passwords computationally infeasible.
CWE-307 OWASP A7:2021
4w ago
security intermediate
ES Modules (ESM) ES2015
The official JavaScript module system — import and export statements enable static dependency graphs, tree-shaking, and native browser module loading without a bundler.
4w ago
javascript intermediate
Memory Management in JavaScript
JavaScript uses automatic garbage collection — the engine reclaims memory when objects are no longer reachable. Memory leaks occur when references are unintentionally retained, preventing collection.
4w ago
javascript intermediate
OAuth 2.0
An authorisation framework that lets users grant third-party applications limited access to their resources without sharing passwords — using short-lived access tokens issued via defined flows for different client types.
CWE-287 OWASP A7:2021
4w ago
security intermediate
Canonical URL (rel=canonical)
A <link rel='canonical'> tag that tells search engines which URL is the authoritative version of a page — preventing duplicate content from splitting ranking signals across multiple URLs.
1mo ago
frontend intermediate
Core Web Vitals
Google's three field-measured performance metrics — LCP (loading), INP (interactivity), CLS (visual stability) — used as direct search ranking signals since 2021.
1mo ago
performance intermediate