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27.1: Single threaded - Coggle Diagram

- - - - typically written in C++
    - - that can handle certain tasks in the background
      - like
        
        making requests
        
        setTimeout
  - - - run a timer for 3 seconds
      - push your anonymous callback function
        
        onto the task queue
        
        aka the callback queue
        
        part of the JS Runtime Environment
    - - monitors the
        
        JS call stack
        
        and the task queue #
      - if the call stack is empty
        
        and there's something on the task queue
        
        it moves it onto the call stack
      - also part of the JS Runtime Environment
- - - - which would need to be nested
  - - - one for each scenario
- - - - > Sendding request to server! > END OF FILE REACHED!!! > Here is your data from the server... <- 3 seconds later
    - - setTimout
        
        ie. it is not coordinated in time
        
        is asynchronous
- - - - at a time
      - one line of code
  - - - one function
      - at a time