Object is defined but JavaScript says it is not

JavaScript
2

Kinda… container.name is indeed undefined which is a special value in JS; however by concatenating it to a string in this line

console.log("container is now a "+container.name);

you’re implicitly coercing the value of undefined to the string 'undefined', which again is not actually undefined. So the expression container.name == 'undefined' will evaluate to false, while

if (container.name == undefined) {
  // ...
}

would pass your test.

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