8. Missing Number
Lesson 9 of 31 in Coddy's 30 Days of Logic Building in Javascript course.
Challenge
EasyWrite a function to find the missing number in an array of integers from 1 to n.
- Input:
<strong>[1, 2, 3, 5]</strong> - Output:
<strong>4</strong>
Try it yourself
function findMissingNumber(arr) {
// write your code below
}All lessons in 30 Days of Logic Building in Javascript
1Introduction
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