One Pager Cheat Sheet

• Create a generic, parameter-accepting method that returns a string of the data type of the given input.
• We can parse a given data's type by calling Object.prototype.toString() and slicing/splitting the result.

This is our final solution.

To visualize the solution and step through the below code, click Visualize the Solution on the right-side menu or the VISUALIZE button in Interactive Mode.

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function detectType(data) {

  return Object.prototype.toString

    .call(data)

    .slice(1, -1)

    .split(" ")[1]

    .toLowerCase();

}

That's all we've got! Let's move on to the next tutorial.

If you had any problems with this tutorial, check out the main forum thread here.