Posted by: Pdfprep
Post Date: October 29, 2020
You are troubleshooting a web page that includes the following code. (Line numbers are included for reference only.)
What is displayed in the alert from line 11?
A . Div
B . Function
C . Button
D . Document
Answer: C
Explanation:
* The event handler here normalizes event object (passed as a first argument) and invokes handleCellClick in a proper context (i.e. referring to an element that was attached event listener to). The element is the button elButton.
* addEventListener
Syntax: element.addEventListener(event, function, useCapture)
Reference: HTML DOM addEventListener() Method
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