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Data Structures Magic Quiz

Test your knowledge of Data Structures by answering this quiz!
Question about JavaScript Basics I

Given the following array:

var arr = [1, 2, 3, 4, 5, 6, 7]

Which of the following is not a valid way to get the last element of the array?


  • arr[-1]

  • arr[6]

  • arr[arr.length-1]

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