7

While studying TCO I came across a fancy error:

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Can someone explain to me what the "call stack" is here and why is it overflowing?

There are no function calls in this expression to operate on the call stack. And according to the specification, when creating a literal array, execution contexts are not used. What is the problem?

MaximPro
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  • Does this answer your question? ["RangeError: Maximum call stack size exceeded" Why?](https://stackoverflow.com/questions/22123769/rangeerror-maximum-call-stack-size-exceeded-why) – Jaydeep Jan 07 '20 at 08:13
  • I try to run the snippet on Firefox 66, the error message is `too much recursion`. Apparently different errors on different browsers anyway: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Errors/Too_much_recursion – vahdet Jan 07 '20 at 08:17
  • @JD I don't think it does. – CertainPerformance Jan 07 '20 at 08:17
  • @JD not entirely, It says that there is a restriction on arguments in a function. And I do not have any functions and close. – MaximPro Jan 07 '20 at 08:17
  • @vahdet different browsers may interpret the error in different ways. My error - chrome, your - firefox – MaximPro Jan 07 '20 at 08:21
  • I can't find `RangeError` relating to something like this in the specification, so it looks to be implementation-dependent. – CertainPerformance Jan 07 '20 at 08:22
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    I'm pretty sure, that the JS engine doesn't create an array from a string without calling any functions internally. Also nesting into 5120 levels deep is not practical. – Teemu Jan 07 '20 at 08:23
  • @Теему you are right. If you look at the specification, then the expression of such an array will be processed recursively – MaximPro Jan 07 '20 at 08:29
  • @CertainPerformance there is no such error in the specification. Therefore, yes, it is probably a matter of implementation. Although the specification could impose some restrictions on this matter, on the choice of implementation – MaximPro Jan 07 '20 at 08:32
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    @vahdet `too much recursion` and `Maximum call stack size exceeded` is the same error with different wording. – nick zoum Jan 07 '20 at 08:32

0 Answers0