The modern web on a slow connection

"A couple years ago, I took a road trip from Wisconsin to Washington and mostly stayed in rural hotels on the way. I expected the internet in rural areas too sparse to have cable internet to be slow, but I was still surprised that a large fraction of the web was inaccessible."

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The Pros and Cons of DRY Code

"Clean code is like clean garbage – it’s only truly clean if it doesn’t exist. In other words, the only clean code is no code. Let’s start with an acknowledgment that a perfectly clean (empty) codebase is useless."

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Security Overview of AWS Lambda

"This whitepaper presents a deep dive into the AWS Lambda service through a security lens. It provides a well-rounded picture of the service, which is useful for new adopters, and deepens understanding of Lambda for current users."
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Understanding DynamoDB Condition Expressions

"If you’re working with DynamoDB, you’re likely to rely on Condition Expressions when manipulating items in your table. Condition Expressions can ensure you don’t overwrite existing users, allow bank account balances to drop below $0, or give Admin access to every user in your application."

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Configure DynamoDB in CDK

"We are now going to start creating our resources using CDK. Starting with DynamoDB. Add the following to infrastructure/lib/DynamoDBStack.js."

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LayerCake : Guide

"These are the props you can set on the LayerCake component itself. You set them all like so: A list of data items. If this is not a flat data array of objects, you'll also need to set flatData."

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Release v0.5.0 · serverless-stack/serverless-stack

"Source code (zip)"

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[codepen_embed height="265" theme_id="light" slug_hash="dypqrPO" default_tab="js,result" user="ainalem"]See the Pen <a href='https://codepen.io/ainalem/pen/dypqrPO'>Scroll to choose topic</a> by Mikael Ainalem (<a href='https://codepen.io/ainalem'>@ainalem</a>) on <a href='https://codepen.io'>CodePen</a>.[/codepen_embed]
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Using WebAudioRecorder.js to Record MP3, Vorbis and WAV Audio on Your Website

"This is the 2nd post in our new recording audio in HTML5 series. In the 1st we’ve discussed Recorder.js. In this blog post, we’ll cover using WebAudioRecorder.js to record mp3, vorbis and wav audio on your website."

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Advanced Promise Patterns: Promise Memoization

"In this post, we’ll show how a common caching implementation exposes a race condition. We’ll then show how to fix it, and (unlike most optimizations) we’ll simplify our code in the process."

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