function filteredArray(arr, elem) {
let newArr = [];
for (let i = 0; i < arr.length; i++) {
for (let j = 0; j < arr[i].length; i++) {
if (arr[i][j] != elem) {
newArr.push(arr[i]);
}
}
}
return newArr;
}
console.log(filteredArray([
[3, 2, 3],
[1, 6, 3],
[3, 13, 26],
[19, 3, 9]
], 3));How should I remove that error? If a nested array doesn't contain element it will push it to newArr.
You need to increment j in that inner loop.
You also need to find a way to check to see if elem has been found, and only if it's been found, to add the nested array to the output.
function filteredArray(arr, elem) {
let newArr = [];
for (let i = 0; i < arr.length; i++) {
let found = false;
for (let j = 0; j < arr[i].length; j++) {
if (arr[i][j] === elem) {
found = true;
}
}
if (!found) newArr.push(arr[i]);
}
return newArr;
}
console.log(JSON.stringify(filteredArray([
[3, 2, 3],
[1, 6, 3],
[1, 6, 4],
[3, 13, 26],
[19, 3, 9]
], 3)));A more modern method would be to filter out the arrays that where elem is not included:
function filteredArray(arr, elem) {
return arr.filter(inner => {
return !inner.includes(elem);
});
}
console.log(JSON.stringify(filteredArray([
[3, 2, 3],
[1, 6, 3],
[1, 6, 4],
[3, 13, 26],
[19, 3, 9]
], 3)));function filteredArray(arr, elem) {
let newArr = [];
for (let i = 0; i < arr.length; i++) {
for (let j = 0; j < arr[i].length; j++) {
if (arr[i][j] == elem) {
newArr.push(arr[i]);
}
}
}
return newArr;
}
console.log(filteredArray([
[3, 2, 3],
[1, 6, 2],
[3, 13, 26],
[19, 3, 9]
], 3));