Can't pass "Data Structures: Create a Stack Class"

JavaScript
1

Tell us what’s happening:

Task has not passed, the reply is:

The peek method should return the top element of the stack

Your code so far


function Stack() {
var collection = [];
this.print = function() {
  console.log(collection);
};
// Only change code below this line

this.push = collection.push;
this.pop = collection.pop;
this.peek = function() {
  return collection[collection.length - 1];
}
this.isEmpty = function() {
  return !collection.length
}
this.clear = function() {
  collection = []
}

// Only change code above this line
}

Your browser information:

User Agent is: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/81.0.4044.138 Safari/537.36.

Challenge: Create a Stack Class

Link to the challenge:

2

hint:

this.push = collection.push;
this.pop = collection.pop;