Please help me my javascript code is not working

Please help me my javascript code is not working
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Please, i need your help. I don’t know why this my javascript code is not working. i have checked it countless times and i can’t find the problem.
This is the code on codepen https://codepen.io/sylva-line/pen/MWwOXJV
What i was hoping to build is a book list that accepts values and display it on a table row. I did it using es5 constructor function.

Please am learning and i will sincerely appreciate all your efforts.

Watch this:

You have an event listener set on the form listening for the submit event but the submit button is not generating this event because you don’t have it set to the correct type. Right now you have

<input type="button">

You don’t want this to be just a plain button, you want it to be a submit button. I wonder what you should change the type to in order to get it to be a submit button?