Hello everyone,
I’ve passed this section with the guide given. but I can’t really understand why:
let row = [ ];
that’s nested in outer loop will give result of
[ [ 0, 0, 0, 0, 0, 0 ],
[ 0, 0, 0, 0, 0, 0 ],
[ 0, 0, 0, 0, 0, 0 ] ]
and when
let row = [ ];
is nested in the inner loop will makes the code properly working.
would appreciate an explanation on how these 2 work differently
**Your code so far**
function zeroArray(m, n) {
// Creates a 2-D array with m rows and n columns of zeroes
let newArray = [];
for (let i = 0; i < m; i++) {
// Adds the m-th row into newArray
let row = [];
for (let j = 0; j < n; j++) {
// Pushes n zeroes into the current row to create the columns
row.push(0);
}
// Pushes the current row, which now has n zeroes in it, to the array
newArray.push(row);
}
return newArray;
}
let matrix = zeroArray(3, 2);
console.log(matrix);
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Challenge: Debugging - Use Caution When Reinitializing Variables Inside a Loop
Link to the challenge: