How do I pass an argument from a function into classList.add('')?

Question

function reTransform(item,addClass){
item.classList.add(`${addClass}`) или еще пробовал item.classList.add(addClass)
}
reTransform(item, 'className' )

It blows on TypeError, how to write a function with this idea.

Comments

Are you sure that the item inside the function is a DOM element?

---

Yes, the trap of weak typing in JS.

---

alexalexes , thanks for the tip. I spent an hour looking at this piece of code to understand that item is a NodeList.

Answer 1

Try this

function reTransform(item,addClass){
let class = addClass;
item.classList.add(class) 
}
reTransform(item, 'className' )