“Do” is another reserved keyword in JavaScript that cannot be used as a variable, label, or function name. However, this reserved keyword cannot stand alone and is closely connected to another reserved keyword – “while”. Together “do” and “while” keywords create a loop and in that loop, the do keyword executes (does) some part of the code. Let’s go through a few examples and see what is the purpose of the “do” keyword in the do-while loop.
…