Is it telling to make a for loop due to which array nested within a arr which contains elem is removed from the arr and added to newArr ? Your code so far
function filteredArray(arr, elem) {
let newArr = [];
// Only change code below this line
for(let i=0; i < arr.lemgth; i++){
if(arr[i].indexOf(elem) >= 0){
newArr.push(arr[i]);
}
}
// Only change code above this line
return newArr;
}
console.log(filteredArray([[3, 2, 3], [1, 6, 3], [3, 13, 26], [19, 3, 9]], 3));
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Challenge: Iterate Through All an Array’s Items Using For Loops
because both [10, 8, 3] and [14, 6, 23] do not contain 18, while [3, 18, 6] does. So we are removing all nested arrays (sub-arrays) that contain the second parameter.