Tell us what’s happening:
please help me understand why there are only i and j and not k (only 2 elements in the array) but not third one as we see 3 array elements in the given question even in the sub array.
second is i dont understand this j<arr[i].length .
Describe your issue in detail here.
Your code so far
function multiplyAll(arr) {
let product = 1;
// Only change code below this line
for (let i=0;i<arr.length;i++)
{
for (let j=0;j<arr[i].length;j++)
{
product*=arr[i][j];
}}
// Only change code above this line
return product;
}
multiplyAll([[1, 2], [3, 4], [5, 6, 7]]);
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Challenge: Basic JavaScript - Nesting For Loops
Link to the challenge: