Go developers have everything needed to start writing automated unit tests using the
go testcommand baked directly into the compiler toolchain. By hooking into thetestingpackage’s lifecycle and importing Docker’s client libraries, we can automate integration tests that manage their own Docker containers.
Source: Automating Go Integration Tests With Docker, an article by James Dudley.
The ES2018 introduced us with the concept of the
restandspreadoperators. Though the ES2015 already introduced us thespreadoperator, ES2018 further expanded the syntax by adding spread properties to object literals. Both of them become very useful when we need to copy an array or object, or when we need to pass an indefinite amount of arguments into a function. Here, we'll discuss both therestandspreadoperators.
Source: The Three Dots of JavaScript: Rest and Spread Operator, an article by Subha Chanda.
Riccardo D'Ambrosio recently released RSLint, a linter for JavaScript that is written entirely in Rust. RSLint strives to be as fast as possible, customizable, and easy to use. RSLint is still in the early phase of its development and features basic Visual Studio Code integration.
Source: RSLint, a New, Fast JavaScript Linter Written in Rust, an article by Bruno Couriol.
Recently a cool new experimental feature was added to Chrome. We can get an overview of the CSS used on a website. For example: information about CSS elements, external stylesheets, colors, fonts, media queries and also unused declarations (if you want to optimize things you may want to check it out).
Source: Chrome DevTools - CSS Overview, an article by Boris Bay.
When I tried this on Chrome version 85.0.4183.121 running on macOS Mojave 10.14.6 using Plurrrr the browser kept showing Processing Page. After an upgrade to version 86.0.4240.75, CSS Overview worked as expected. This is a tool I am for sure going to use; highly recommended.
