I couldn't understand what is the challenge (to force the value to be 42), maybe is just me
Shouldn't be IDE's and linters handle this mistakes for us? (not double declare something). I guess that is the purpose, to raise awareness of this possible problem.
a better challenge would be that wouldn't require to solve it with a bad practice (redeclare/overwrite a definition).
This is not a "best practice" use case, but one feature of ecmascript that should be known by developers.
The challenge itself is an introduction to a given scenario where you can control only part of the website, such as in a Reflected XSS, yet need to change the behavior of a constant.
In another language, I would expect the secret variable to be safe and tamper-proof, yet it is not thanks to Function Hoisting.
Of course I wouldn't recommend anyone to use this knowledge in clean code, but I definitely can see this being part of a CTF challenge or causing innatention bugs.
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I couldn't understand what is the challenge (to force the value to be 42), maybe is just me
Shouldn't be IDE's and linters handle this mistakes for us? (not double declare something). I guess that is the purpose, to raise awareness of this possible problem.
a better challenge would be that wouldn't require to solve it with a bad practice (redeclare/overwrite a definition).
Hey there, thanks for the feedback!
This is not a "best practice" use case, but one feature of ecmascript that should be known by developers.
The challenge itself is an introduction to a given scenario where you can control only part of the website, such as in a Reflected XSS, yet need to change the behavior of a constant.
In another language, I would expect the secret variable to be safe and tamper-proof, yet it is not thanks to Function Hoisting.
Of course I wouldn't recommend anyone to use this knowledge in clean code, but I definitely can see this being part of a CTF challenge or causing innatention bugs.