JavaScriptCore - The Holy Grail of Cross Platform thumbnail

The perfect cross-platform solution. The Holy Grail. The El Dorado of app development. The dream that multiple languages have promised, but none have delivered. As we speak, there are likely a dozen cross-platform projects in the R&D phase—all with a couple years worth of funding and all being built with…

How to Debug Disk Full Errors in Redshift thumbnail

When working with Amazon’s Redshift for the first time, it doesn’t take long to realize it’s different from other relational databases. You have new options like COPY and UNLOAD, and you lose familiar helpers like key constraints. You can work faster with larger sets of data than you ever could…

Mobile Test Automation That Works thumbnail

At Lucid, we automated half of our manual regression testing for our Lucidchart Android app—knocking the regression cycle down from six to three hours.  As Lucid moves toward a continuous release cycle, we are working to reduce manual QA testing for server and native releases to only one hour of…

Compile-time Dependency Injection With Play thumbnail

The Play Framework provides a lot of features, which makes it incredibly easy to scale infrastructure. However, scaling a codebase is more difficult. As developers create new components and more complex relationships, the codebase can become unruly for all. To help with this problem, one can use a dependency injection…

I recently finished a project which required me to modify an annotation macro for Scala using the Scala Macros Paradise project. Because I was extensively modifying a macro that we were already using, I wanted to write tests to prevent breaking our current workflow and to check that the new…

How to handle folder uploads in Angular 2+ thumbnail

At Lucidpress, we recently decided to revamp our image manager experience by creating a completely new image manager written in Angular 2 and Typescript. One of the key new features we wanted to add was bulk image upload, which is the ability to upload a folder with all of its…

5 Angular directives you can use in your project thumbnail

In a recent blog, we showed off some examples of Angular pipes we use in our code base. Now, we’d like to talk about directives. Angular directives allow you to attach behavior to elements in the DOM and reuse it across your project. The framework already comes with a number…

How to Build Automated Dashboards with Google Apps Script and Google Sheets thumbnail

Dashboards are a powerful way to communicate data to your team. One use for dashboards is tracking the progress of key performance indicators (KPIs). One KPI tracked at Lucid is the ranking and performance of our products in third-party marketplaces. Although there are enterprise-grade products to gather and visualize this…

The 6 deadly sins of Google Apps Script Add-on development thumbnail

So you want to build an add-on for Google Docs, Sheets, or Slides, but you’re worried about ending up on the highway to development hell? You’ve come to the right place, then. As someone who has been down that road before, I’d like to share some of the mistakes, missteps,…

Functional Programming Principles Every Imperative Programmer Should Use thumbnail

Sometimes it seems like functional programmers are a totally different breed. Even by programmer standards, they seem more nerdy than the rest. They use weird terms, such as "monad," "for-comprehension," and "lambda." They use languages that don’t end every line with a semicolon. And, no matter how uneasy Java programmers…