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JavaScript Interacting with the DOM Traversing the DOM Traversing up the DOM with parentNode

Why do we use the word BUTTON in capitalized letters? if(event.target.tagName === 'BUTTON')

taskList.addEventListener('mouseover', (event) => { if(event.target.tagName === 'BUTTON'){ } })

2 Answers

Steven Parker
Steven Parker
229,920 Points

HTML tag names are always upper case internally as required by the W3C specifications, so the string must also be upper case to match.

Hello Steven, Thank you so much for the explanation, I appreciate it