Tell us what’s happening:
“TypeError: unknown: Cannot read property ‘0’ of undefined”
How can I fix this? x.x
Your code so far
function multiplyAll(arr) {
var product = 1;
// Only change code below this line
for (var a = 0; a < arr.length; a++);{
for (var b = 0; b < arr[a].length; b++){
product = product * arr[a][b];
}
}
// Only change code above this line
return product;
}
// Modify values below to test your code
multiplyAll([[1,2],[3,4],[5,6,7]]);
Your browser information:
User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.106 Safari/537.36
.
Link to the challenge:
https://learn.freecodecamp.org/javascript-algorithms-and-data-structures/basic-javascript/nesting-for-loops