A key strategy to work around this problem is to launch a child process, or a process created by another process, when faced with long-running tasks. As mentioned earlier in this series with the How To Write Asynchronous Code in Node.js tutorial, because only one thread can run on one process, operations that take a long time to execute in JavaScript can block the Node.js thread and delay the execution of other code. Within that process, Node.js executes programs on a single thread.
When a user executes a single Node.js program, it runs as a single operating system (OS) process that represents the instance of the program running. The author selected the COVID-19 Relief Fund to receive a donation as part of the Write for DOnations program.
