Introducing our series: #TechTips​​​​! In these videos, our in-house developer team at Hackages share with you the tech tips you need to become a better developer! Check out our other series 'Tech Tips' videos.Sick of writing if (myArray.length -angled bracket- 0) ? In this video, Florian Pasteur, software engineer at Hackages, shows you how to strongly type your arrays to have mandatory elements in Typescript.