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Array.prototype.foo = 1;
 
// somewhere deep in other javascript code...
var a = [1,2,3,4,5];
for (let x in a){
    console.log(x);
}

Runtime error #stdin #stdout #stderr 0s 105856KB

stdin

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Standard input is empty

stdout

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Standard output is empty

stderr

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prog.js:6:4 ReferenceError: console is not defined

https://ideone.com/Zm8dbi

language:

JavaScript (SMonkey 60.2.3)

created:

visibility:

public

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