Go’s built-in support for concurrency separates it from other popular programming languages. It’s the main reason I recommend Go.

Other programming languages were developed before multi-core processors and hyperthreading. Back then, the biggest innovation in operating systems working on single processors was time slicing, in which each thread got its own tiny sliver of time. If you play music while surfing the web on a single-processor machine, your OS will divide time between those tasks.

Eventually, we started seeing hyperthreading, and after that, multiple cores in the same processors. That changed how developers wrote code. Now they had multiple processors at their disposal to handle tasks simultaneously. The multithreading models of older languages had to be retrofitted to exploit the power of the new hardware. Not Go. It was the first programming language to embrace concurrency from the start.

In fact, for developers, concurrency in Go is easier to implement and faster than in any other major programming language.