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The JavaScript Call Stack

  • What is a ‘call’? With the call() method, you can write a method that can be used on different objects.

  • How many ‘calls’ can happen at once? one

  • What does LIFO mean? Last In, First Out,it means that the last function that gets pushed into the stack is the first to be pop out, when the function returns.

  • Draw an example of a call stack and the functions that would need to be invoked to generate that call stack.

image

  • What causes a Stack Overflow? A stack overflow occurs when there is a recursive function (a function that calls itself) without an exit point. The browser (hosting environment) has a maximum stack call that it can accomodate before throwing a stack error.