Weekly Recap – June 22nd, 2025

Spring Boot, Java, TypeScript, Gradle, and Rust

Another week down and I finally got around to posting some Rust content I’ve been meaning to make. There’s one on how Rust handles memory without a garbage collector, one on trait objects and dynamic dispatch, and another on lifetimes, what they do and where they show up. I also posted my first couple of TypeScript articles this week, covering how declaration merging works and why tuple length inference falls apart when things get dynamic.

Outside of Substack, I’ve been rounding out a lot of beginner-friendly Java and Spring Boot content, plus some shorter stuff on JavaScript features that work behind the scenes like ResizeObserver and FontFace. There’s also a LeetCode post if you’re brushing up on interview problems.

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Substack Exclusive

How TypeScript Handles Declaration Merging

Why Tuple Length Inference Fails in TypeScript

Lifetimes in Rust and Why They Matter in Function Signatures

Trait Objects in Rust and the Mechanics Behind Dynamic Dispatch

How Rust Handles Memory Safety Without a Garbage Collector

LeetCode #12: Integer to Roman — Solved in Java

Throttling Failed Login Attempts in Spring Boot

Medium Articles

Java Topics

• Turning a Java List into a Comma-Separated String

• Looping Through an Array in Java with the For Each Loop for Beginners

• Comparing Java Strings for Matches and Differences

• Breaking Large Tasks Into Smaller Methods in Java for Beginners

• Checking if a String Contains a Word or Phrase in Java

Spring Boot Topics

• Adding a Grace Period Before Deletion in Spring Boot APIs

• Shutdown Hook Mechanics in Spring Boot Services

• Serving Dynamic PDF Files in a Spring Boot Web App

• Making a Basic Password Reset Workflow in Spring Boot

• Creating a CSV Export Feature in a Spring Boot API

• Adding a Basic Audit Trail to a Spring Boot API

• Injecting Configuration from the Command Line in Spring Boot

JavaScript Topics

• Monitoring Resizes with the JavaScript ResizeObserver API

• How getBoundingClientRect Works and What It Returns

• Working with JavaScript DOMTokenList for Class Management

• Loading Fonts Dynamically With JavaScript FontFace API

• Parsing Large Files in the Browser Using JavaScript Streams API

• Detecting Idle Time in the Main Thread in JavaScript

Kotlin Topics

• Kotlin Safe Calls and How They Compile to Null Checks

• Kotlin Property Getters and Setters Behind the Scenes

Gradle Topics

• How to Set Up a Java Project with Gradle for Beginners

This coming week, I’m taking a break from JavaScript articles on Medium and switching to TypeScript. After spending the last few weeks covering browser features and DOM behavior, it felt like a good time to branch into something that builds on those concepts a bit more directly. I’ve also got a couple more Gradle articles lined up, so if you’ve been following the Java setup articles, those will fill in a few more missing pieces. And of course, there’ll be more Spring Boot and Java content as well.