Maintaining JavaScript applications in the long term - Great writeup of the tech stack used by the developers of the OECD Data Portal, discusses the choices they made and migrations they undertook during this long running project, it’s an interesting mix of modern (D3, ESNext, Typescript) and boring (Backbone, JQuery) web development technologies with some good advice about how to test code and being careful with abstractions - I like their approach to using Typescript via JSDOC, and also their use of progressive enhancement to make sure the site is accessible to the wide ranging user base they have all around the globe9elements.com #