Closures - TechnoScripts

Groovy Memoization – Cache Function Results with memoize() (10+ Examples)

Groovy memoize with memoize() offers built-in caching, memoizeAtMost(), memoizeBetween(), and memoizeAtLeast(). 10+ tested examples for caching closure results. “The fastest computation is the one you never have to do. Memoization turns expensive functions into instant lookups.” Donald Knuth, The Art of Computer Programming Last Updated: March 2026 | Tested on: Groovy 5.x, Java 17+ | Difficulty: Intermediate | Reading Time: 17 minutes When a function takes 3 seconds to compute and you call it with the same arguments 10 times, ... Read More

Groovy Method References & Method Pointers Explained with 12 Examples

Groovy method references and method pointers with the .& operator. 12 examples covering instance, static, and constructor references. Tested on Groovy 5.x. “A method pointer is a closure that was always hiding inside your method – Groovy just gives you the key to unlock it.” Kent Beck, Smalltalk Best Practice Patterns Last Updated: March 2026 | Tested on: Groovy 5.x, Java 17+ | Difficulty: Intermediate | Reading Time: 18 minutes If you’ve been working through the closures section of this ... Read More

Groovy Curry and Partial Application – Complete Guide with 10 Examples

Learn Groovy curry, rcurry, ncurry, and partial application with 10+ tested examples. Build reusable closures, loggers, validators, and pipelines on Groovy 5.x. “Currying is the art of asking for less — turning a function that needs three ingredients into one that already has two.” Haskell Curry, Mathematician Last Updated: March 2026 | Tested on: Groovy 5.x, Java 17+ | Difficulty: Intermediate to Advanced | Reading Time: 16 minutes Groovy curry lets you take a closure with multiple parameters and pre-fill ... Read More