What will the final count log show in Javascript? And why? Go! @GoogleDevelopers
What will the final count log show in Javascript? And why? Go! @GoogleDevelopers
Uploaded March 2026 | Updated September 2026, 1 week ago
A quick JavaScript brain teaser. We start with an array created using new Array(3). Then we run a small piece of code that looks completely reasonable. At the end, we log a value, which may not be what you expected. What number appears, and why? Watch the video and share your answer in the comments.

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Speaker: Sayali Godbole
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What will the final count log show in Javascript? And why? Go!

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