What is the call stack?
It is an internal data structure the computer uses to keep track of active functions. It remembers where to return after a function finishes execution.
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Control flow refers to the order in which individual statements, instructions, or function calls are executed or evaluated in a program.
By default, yes. However, control flow statements like loops, conditionals, and function calls force the execution path to branch, jump, or repeat.
The program pauses its current line, saves its location on the call stack, jumps to execute the function, and then returns to the saved location once done.
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