Why doesn't the color change when adding a class?

• 0
  I add a new class to the element, but the color does not change.
  How can I change the color by adding or removing this class?
  https://jsfiddle.net/5mqekaL2/

  JavaScript Anonymous, Sep 4, 2020

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1 Answers
• 0
  ssList.add ("red");
  
  
  
  In this case, a class without a dot is written.
  
  
  
  

  document.querySelector(".box").addEventListener("click", function(e) {
  
  	e.target.classList.toggle("red");
  
  })

  
  
  https://jsfiddle.net/nwrg8qhu/9/
  
  
  
  It is very easy to remember this. If you cannot specify anything besides a class, then you do not need to specify ".", Which indicated that this is a class.

  Anonymous

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