ESLint comes with support to require or disallow trailing commas. This option is also known as “comma-dangle”. Trailing commas are supported in JavaScript by ECMAScript v5. Here’s a simple example: const futurestudio = { team: ['Marcus', 'Norman', 'Christian'], } The comma after team: ['Marcus', 'Norman', 'Christian'], is a trailing comma. This tutorial …

JavaScript supports the BigInt data type representing whole numbers larger than the Integer rage (2^53 - 1). An app of ours has database tables using a BigInt number for primary keys. ESLint showed an issue that “BigInt is not defined” while mapping the primary key values from the database …

NPM is a powerful package manager. It supports a scripts property in the package.json file. These scripts allow you to run commands for the current project. A typical command is to run the test suite for the project. You can also combine scripts or add CLI flags to individual …

In the previous two tutorials, you've learned how to set up custom fonts on Android the modern way. Either as fixed font style (such as Noto Serif bold) or as font family (such as Noto serif in several weights). However, so far you've only used XML designs to configure app …

In the last tutorial, we've explored the modern way of implementing custom fonts on Android. However, it broke the support for dynamically changing the font style and weights (for example, bold or italic). In this tutorial, we'll fix this drawback and configure a font family with different styles. {{outline}} {{video} …

Last week we’ve learned about CoreOS’ components and technologies within the ecosystem. This week, we’re directly diving into the practical part and get our hands dirty. If you read the first post, you already know that CoreOS is an operating system geared towards high-availability. Setting up a cluster …