It’s been a fairly busy for the last couple of months for the Ethereum javascripters. To start with, there was a really great hackathon with IPFS. You can read Dan Finlay’s excellent write up here. Also, during this time Aaron Davis (Kumavis) made some ex... (more…)

I was recently working on an application at work which was stable but had no automated test coverage. As it got bigger, I grew more worried about the fact that I couldn’t keep the entire code base in my head anymore.As an app gets larger, it becomes harde... (more…)

As the saying goes: never trust user input. How to validate input in JavaScript with Joi. (more…)

Today, while I was working, someone sent an interesting little script in a chat group: http://jsbin.com/nijohi/edit?js,output. (more…)

Some real programs are designed to produce output based solely on input. Ideally, compilers output the same binaries provided the same input files, for example. More frequently, however, programs require state, and user input together with the current sta... (more…)