It's pretty straightforward. Your goal is to create a function that removes the first and last characters of a string. You're given one parameter, the original string. You don't have to worry about strings with less than two characters.
function removeChar(str){
//You got this!
var output = [];
var numberOfCharacters = str.length;
for (var i = 0; i < numberOfCharacters; i++){
if (i != 0 && i != numberOfCharacters - 1){
output.push(str[i]);
}
}
return output.join('');
}