Variables with the same name in JavaScript? What will be logged to the console?
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In the first line, we see an array animals that holds 5 strings.
The length of this array is used in the loop condition, so the loop will continue spinning up to the point when i becomes equal to 5.
Inside of the loop, a new array is declared with the same name animals. There are no issues with such a declaration and no errors will be thrown.
It’s important to remember, though, that the value animals.length in the loop condition is attributed to the external array with 5 elements but the console.log picks up the inner array, which has only 2 elements in it.
Once we go out of bounds there will be no error like in C++ or Java. Instead, we’ll get undefined as the result of the last 3 iterations of the loop.
ANSWER: The strings Whale, Dolphin will be logged to the console, followed by undefined, undefined, undefined.