Hello Guys,
While I understand codecademy’s explanation of loops and nested loops, there is something I find confusing. Please click the link below and explain when to use the outer loop and the inner loop in the if statement.
The inner loop is used in their example while the outer look is used in the exercise. I would like to know why the diference.
The purpose of nesting is to be able to pair up all the permutations possible between the two arrays.
a = [10, 20, 30]
b = [1, 2, 3, 4, 5, 6, 7, 8, 9]
for (i of a) {
for (j of b) {
console.log(`(${i}, ${j})`)
}
}
(10, 1)
(10, 2)
(10, 3)
(10, 4)
(10, 5)
(10, 6)
(10, 7)
(10, 8)
(10, 9)
(20, 1)
(20, 2)
(20, 3)
(20, 4)
(20, 5)
(20, 6)
(20, 7)
(20, 8)
(20, 9)
(30, 1)
(30, 2)
(30, 3)
(30, 4)
(30, 5)
(30, 6)
(30, 7)
(30, 8)
(30, 9)
Can you show us the two examples (the code, that is)?