Dynamically Create a Calendar with JavaScript

This question came up in my Interview Questions Tool, and it seemed straightforward at first, but there are some important considerations to keep in mind.

To create a graphical representation of the months, we need to position each first day of the month after the last day of the previous month. This requires careful planning and placement. If each month had exactly 28 days, this would be easier, but that's not the case.

This leads to the second consideration: Months with more than 28 days consume more than a full four weeks, and they can have different numbers of days, adding another layer of complexity.

Thirdly, there's the issue of Leap Year, which can be a significant challenge if not accounted for. The key is understanding how to use the Date() function. The code in the CodePen below demonstrates my approach to addressing these challenges. Feel free to reach out to me directly with questions or post them in the comments box at the bottom of this page.


See the Pen Calendar in JavaScript by Mike (@DarkMG73) on CodePen.

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