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JavaScript JavaScript and the DOM (Retiring) Responding to User Interaction Event Delegation

Igor Pavlenko
Igor Pavlenko
12,925 Points
Posted by Igor Pavlenko
Igor Pavlenko
12,925 Points

challenge question

did not the get the part why you have to capitalise tags in the if statement?

plz explain?

listHide.addEventListener('mouseover', (event) => { if (event.target.tagName == 'LI') { event.target.textContent = event.target.textContent.toUpperCase();
}
});

listHide.addEventListener('mouseout', () => {
    if (event.target.tagName == 'LI') {
      event.target.textContent = event.target.textContent.toLowerCase(); 
    }
});

2 Answers

brandon downs
brandon downs
11,577 Points
brandon downs
brandon downs
11,577 Points

You would want to write the if statement like this

If (blah.blah.toUpperCase() == 'BLAHBLAH') { Then do something }

(The blahs are just space fillers/ example/ not words you need to use)

It makes the user input all upper case letters, and then checks to see if that is equal to the upper case answer that you defined. This way you don't need to worry about users writing the answer using inconsistent capitalization of numbers.

Abhijit Das
Abhijit Das
5,022 Points
Abhijit Das
Abhijit Das
5,022 Points

once you click on any element, tag name property always return the element name as capitalization, therefore in if statement it checks that.