Endospores are hardy, defensive structures that enable some bacteria to survive harmful environmental conditions, such as starvation, high temperatures, desiccation (drying out), chemical disinfectants and extremes in pH.
Recursive formula is a formula that is used to determine the next term of a sequence using one or more of the preceding terms.
Recursion is one of the initial courses we take in every CS university, with the most used example being the Fibonacci sequence: let recursive = (n) => { if(n <= 2) { return 1 } else { return recursive(n - 1) + recursive(n - 2); } }; This works great in most of the languages we've been taught, but with asynchronous environments such as Node.js, things are getting tricky. Using asynchronous functions, we need to wait for the function to end before call the next iteration of the recursion.