We will explain it based on the actual code, so let's deepen our understanding.
In addition, we also introduce a site where you can learn JavaSript for introductory, so please also see it.
What is a combo box?
A combo box (select box, drop-down list) is one of the HTML elements that allows you to select a value from multiple values.The following is the setting screen of Chrome, but the combo box is used for selecting the font size and so on.
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