помогите понять как работает элемент canvas [закрыт]

var circle = $('#circle') 
 
circle.circleProgress({ 
    value: 0.75, 
    size: 80, 
    fill: "#fdba45", 
  }); 
 
circle.mouseover(function() { 
	circle.circleProgress('value', 1); 
}) 
 
circle.mouseleave(function() { 
	circle.circleProgress('value', 0.75); 
})

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> 
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery-circle-progress/1.2.2/circle-progress.min.js"></script> 
 
<div id="circle"></div>