Computer scienceProgramming languagesJavaScriptWorking with dataArrays

Array

Theory

Compare marks

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Alex and his four friends have been given marks in Computer Science. Now, Alex wants to compare his marks with those of his friends by using an Array to store their marks. Specifically, he wants to get the difference between his mark (stored as the first element of the Array) and his best friend's mark (stored as the last element of the Array). Can you help Alex to do this?

The function is already defined for you. An array will be given as an argument to this function; you don't need to create an array.

Complete the code below and use console.log() to output the result; you don't need to call the function.

Sample Input 1: 

34 56 23 54 43

Sample Output 1: 

-9

Sample Input 2: 

12 34 6 7 0

Sample Output 2: 

12

Sample Input 3: 

30 40 50 60 70

Sample Output 3: 

-40

Sample Input 4: 

0 0 0 0 0

Sample Output 4: 

0
Write a program in JavaScript
function getDifference(marks) {
console.log(...);
}
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