My code is throwing the following error:
cannot read property length of undefined in arr[i].length
function filterArray(arr, elem) {
let newArray = [];
for (let i = 0; i < arr.length; i++) {
for (let j = 0; j < arr[i].length; j++) {
if (arr[i][j] === elem) {
arr[i].splice(j, 1);
}
}
}
return arr;
}
console.log(filterArray([
[3, 2, 3],
[1, 6, 3],
[3, 13, 26],
[19, 3, 9]
], 3));The issue arises because of the use of the splice method on the array during iteration, which results in the array's length being reduced. This leads to accessing elements outside the bounds of the array since the initial for loop loops until the original length of arr.length - 1. Consider using slice instead to extract the desired portion of the array.
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