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Converting a Tree to a List in JavaScript
With the meteoric rise of JavaScript MVC frameworks, data structures and algorithms long handled server-side are now managed on the client. JavaScript references objects thru memory addresses, making...
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JavaScript's Map, Reduce, and Filter
As engineers we build and manipulate arrays holding numbers, strings, booleans and objects almost everyday. We use them to crunch numbers, collect objects, split strings, search, sort, and more. So...
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Events, Concurrency and JavaScript
Modern web apps are inherently event-driven yet much of the browser internals for triggering, executing, and handling events can seem as black box. Browsers model asynchronous I/O thru events and...
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Build Better Apps with ES6 Modules
ES6 is packed with features like iterators, generators, maps, sets, symbols, template strings and more. One of the biggest game changers to app architecture is the new modules, and different than the...
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Designing Normalized SQL Tables
SQL databases are reliable for complex queries, partial updates, transactions, and decoupling data modeling from application specific contexts. In this post we’ll cover how to normalize tables in 1NF,...
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Rediscovering MVC and How to Write without a Framework
If you’ve paid much attention to front-end development in the last few years you’ve heard about Angular, Backbone, Ember, and other JavaScript MV* frameworks. They offer structure, bundled APIs and...
View ArticleSQL Performance of Join and Where Exists
Sometimes we need to identify record sets with at-least-one relationships. Find customers who’ve placed an order, products categorized as books, or cities that have airports. In this post we’ll compare...
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RabbitMQ Message Broker Patterns
RabbitMQ uses variety of asynchronous architectural patterns to decouple applications. Here we’ll cover round robin, next available worker, and publish/subscribe models, and features such as routing,...
View ArticleJava 8 Streams
Streams brought a functional and declarative style to Java. They convey elements from a source, such as a collection, through a pipeline of computational operations, But different than collections,...
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Exploring REST API Architecture
When building APIs to handle HTTP messages we often set up URL structures, request methods, headers, payloads, response status codes, safe and idempotent behavior, and more. These HTTP features...
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