javascript - How will the stack of this function will look like? -

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when following:

function makeaddfunction(amount) {   function add(number) {     return number + amount;   }   return add; }  var addtwo = makeaddfunction(2); var addfive = makeaddfunction(5); alert(addtwo(1) + addfive(1));

will each instance of makeaddfunction have separate stack or of them use same stack? , order of variables entering , leaving stack matter?

each function call creates new function (-context). answer quickly, yes have separate "stacks" in terms of ecmascripts execution contexts.

i'm not sure mean "the order of variables entering , leaving stack".

ecmascript contexts (objects). there stack of execution contexts called in order. after 1 context finished, parent context continues run until it's finished (and forth). principle lasts long there contextes if not, global context gets attention again.


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