JavaScript Archives - bol.com Techlab

TypeScript, where we love strict

Introduction It sparked in the episode Interactive heavy applications we should record a podcast episode on TypeScript. Around the same time, we came in contact with Hackages. A company focusing on learning tech. Time to bring the engineers together and dive deeper into TypeScript. Typescript is mentioned amongst the 5 most promising languages in 2020. We talk about: What is typescript and how do you benefit? What are good implementation strategies? Bol.com examples Examples from Hackages Maturity in the usage of Typescript Guests Niels van Midden; Front End software engineer…

Our ride to peak season frontend performance

Edwin van der Graaf, on 25-02-2020
Category: Development Tags: Scalability JavaScript Peak Season performance frontend development

We can imagine that at a regular company your colleagues might become very nervous when you worsen the frontend performance by more than a second on the onload, just before the peak season. In this story we’d like to share our journey from experiencing a setback in performance that was caused by us innovating, to the point where we became the retailer with the second fastest frontend response times (Twinkle and Computest benchmark study) in the Netherlands. Before diving into the details, it’s worth mentioning that we as software engineers…

Our ride to peak season frontend performance

Test automation with a great new tool: Cypress

Pim Rebholz, on 10-07-2018
Category: Development, Testing Tags: Testing Cypress JavaScript Test automation

Early October 2017 saw the release of a new tool for test automation, Cypress 1.0. It’s not just another tool, it’s a tool with specific goals in mind.