Matching

Choosing the Right Visual

How to match Power BI visual types to the shape of your data and the question you're actually answering, and the common chart-selection mistakes to avoid.

Regular Expressions in Tcl

How to match, extract, and rewrite text patterns in Tcl using the regexp and regsub commands and Tcl's Advanced Regular Expression syntax.

Pattern Matching in F#

Understand how F#'s match expression destructures values, enforces exhaustiveness, and replaces verbose conditional logic with concise, type-safe branching.

Binary Pattern Matching

Erlang's bit syntax lets you construct and deconstruct binary data with precise, declarative pattern matches, making it a natural fit for parsing network proto…

Guards and Clauses

How Erlang guards extend pattern matching with safe boolean conditions to express multi-way branching without if/else.

Pattern Matching in Erlang

How Erlang's = operator, function clauses, and guards use pattern matching to bind variables and control program flow.

Pattern Matching in Elixir

How Elixir's = operator performs structural pattern matching rather than simple assignment, and how that idea powers destructuring, function clauses, and contr…

Pattern Matching in Haskell

Learn how Haskell lets you destructure values directly in function definitions and case expressions to write clear, exhaustive branching logic.

Regular Expressions in Perl

Learn how Perl's built-in regex engine lets you match, capture, and substitute text patterns using operators like m//, s///, and tr///.

Pattern Matching in Depth

Go beyond basic match expressions to guards, type patterns, list deconstruction, custom extractors, and compiler-checked exhaustiveness over sealed hierarchies.

Locations and Matching Rules

How Nginx's location block matching algorithm actually works — prefix, exact, and regex modifiers, and the precedence order that trips up most misconfiguration…

Naive String Matching and KMP

Compare brute-force substring search with the Knuth-Morris-Pratt algorithm, which uses a failure function to avoid re-scanning characters.

Regular Expressions in PHP

Learn PCRE-based pattern matching in PHP with preg_match, preg_replace, and preg_match_all for validating, extracting, and transforming text.

Pattern Matching

Survey C#'s pattern matching features — type patterns, property patterns, relational and logical patterns, and switch expressions — for expressive, safe branch…

Elixir Cheat Sheet

Elixir syntax, pattern matching, pipe operators, and OTP concurrency primitives for building fault-tolerant BEAM applications.