Tell us what’s happening:
Your code so far
var homeworkStack = ["BIO12","HIS80","MAT122","PSY44"];
// Only change code below this line
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User Agent is: Mozilla/5.0 (Linux; Android 7.1.2; KFMUWI) AppleWebKit/537.36 (KHTML, like Gecko) Silk/81.2.16 like Chrome/81.0.4044.138 Safari/537.36.
Challenge: Learn how a Stack Works
Link to the challenge: