Message from JavaScript discussions

— 1. NodeLists don't have .map
2. You're mapping elements to strings now, this would return a list of uppercased strings, which is pointless

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— It might be classname

— And plural

— GetElementsBy* -> NodeList
getElementBy* -> Element

— Sorry guys.. It's a typo.. After some testing.. This is what is Working for me
var elements=document.getElementsByClassName("test")
console.log(elements)
for(var i=0;i<elements.length;i++){
elements[i].innerText=elements[i].innerHTML.toUpperCase()
}

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— You can remove the console code...

— The line
elements[i].innerText=elements[i].innerHTML.toUpperCase()

— Can also and should be
elements[i].innerHTML=elements[i].innerHTML.toUpperCase()

— 

Array.from(document.getElementsByClassName('test'))
  .forEach(element =>
    element.textContent =
      element.textContent.toUpperCase());

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— Mh...thats cool...I tried the map and forEach and the browser could not allow it...creating an array from it is new to me...but it works!!

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— For testing purposes, the first line should be ....Array.from(document.getElementsByClassName('test'))...

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