Web Reference: We'll pass you an array of two numbers. Return the sum of those two numbers plus the sum of all the numbers between them. The lowest number will not always come first. For example, sumAll([4,1]) should return 10 because sum of all the numbers between 1 and 4 (both inclusive) is 10. Waiting: 1. sumAll([1, 4]) should return a number. This tutorial isn't just about adding numbers; it's about understanding array manipulation and arithmetic logic in JavaScript to solve a common yet interesting problem. 🔢 **Unraveling the Sum ... freeCodeCamp | Intermediate Algorithm Scripting: Sum All Primes: A prime number is a whole number greater than 1 with exactly two divisors: 1 and itself. For example, 2 is a prime number because it is only divisible by 1 and 2. In contrast, 4 is not prime since it is divisible by 1, 2 and 4.
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