The setTimeout function is non-blocking, which means that while waiting for the delay to finish, other code can execute. This is useful for creating animations, for example, where you want to delay the execution of some code to create a pause in the animation.
However, it’s important to note that setTimeout is not a precise timing mechanism. The actual delay time may be longer or shorter than the specified time, depending on various factors such as the load on the CPU and other running processes.
Note that setTimeout is non-blocking, meaning that other code can execute while waiting for the delay to finish. If you need to pause the execution of the entire script, you can use the sleep function, but it is not recommended, as it will freeze the browser tab or node.js process.