First of all, you don’t need to change the name of variables set by default in this challenge.
It’s said: “You will need to use the string concatenation operator + to build a new string, using the provided variables: myNoun, myAdjective, myVerb, and myAdverb. You will then assign the formed string to the result variable.”
So, the result will contain variables and some words to create a meaningful sentence. all you need is to group variables with strings.
var noun = "box";
var adjective = "empty";
result = "This " + noun + " is " + adjective;
So, our result will be “This box is empty”.
Notice that variables must be separated by non-word charachers.
When we try to do this : result = adjective + noun; ( output: emptybox )
we should add a backspace, for example : result = adjective + " " + noun; ( output : empty box. )
Hope that helped.