Tell us what’s happening:
It is a simple question to iterate through a 2D array but it’s not working I don’t know why?
I followed the given instructions but still no use, it’s giving me an error “TypeError: Cannot read property ‘length’ of undefined”. Can someone help?
Your code so far
function multiplyAll(arr) {
var product = 1;
// Only change code below this line
for(var i = 0; i < arr.length; i++)
{
for(var j=0; j < arr[i].length; i++)
{
product *= arr[i][j];
}
}
conosole.log(product)
// Only change code above this line
return product;
}
multiplyAll([[1,2],[3,4],[5,6,7]]);
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Challenge: Nesting For Loops
Link to the challenge: