Articles by Wealthfront Engineering :
Data drives everything we do here at Wealthfront, so ensuring it’s stored correctly and efficiently is of the utmost importance. To make sure we’re always as informed as possible we gather data from our online databases very frequently. However, this has the unfortunate side effect of creating a large amount of small files, which are… Read more
When building the new Add Funds flow for iOS, we needed a date picker to select the start date for a recurring deposit. Apple’s pre-built date picker (UIDatePicker) does not allow for visual customization. Having mostly dark backgrounds and light foregrounds, we needed to build our own date picking component (WFDatePicker). We already had a… Read more
New to Reactive.js? Check out last week’s introduction. All visualizations are ultimately a composition of smaller elements; data sets, scales, individual lines, and labels to name a few. Those elements relate to each other in different ways, and to manage their interdependency we typically find ourselves writing a master “render” method — something that can… Read more
A great article over at Gamasutra outlines a toy 3D engine that uses a spreadsheet to do the calculations. Instead of the imperative approach, this “engine” is more functional-reactive. As mentioned in our post on Reactive.js the other day, Excel serves as a good metaphor when starting to grok functional reactive programming.