1var data = [1, 2, 3, 4, 5, 6];
2
3// traditional for loop
4for(let i=0; i<=data.length; i++) {
5  console.log(data[i])  // 1 2 3 4 5 6
6}
7
8// using for...of
9for(let i of data) {
10	console.log(i) // 1 2 3 4 5 6
11}
12
13// using for...in
14for(let i in data) {
15  	console.log(i) // Prints indices for array elements
16	console.log(data[i]) // 1 2 3 4 5 6
17}
18
19// using forEach
20data.forEach((i) => {
21  console.log(i) // 1 2 3 4 5 6
22})
23// NOTE ->  forEach method is about 95% slower than the traditional for loop
24
25// using map
26data.map((i) => {
27  console.log(i) // 1 2 3 4 5 6
28})

1const array = ["one", "two", "three"]
2array.forEach(function (item, index) {
3  console.log(item, index);
4});

1function filteredArray(arr, elem) {
2  let newArr = [];
3  // change code below this line
4
5  for (let i = 0; i < arr.length; i++) {
6    if (arr[i].indexOf(elem) == -1) {
7      //Checks every parameter for the element and if is NOT there continues the code
8      newArr.push(arr[i]); //Inserts the element of the array in the new filtered array
9    }
10  }
11
12  // change code above this line
13  return newArr;
14}
15// change code here to test different cases:
16console.log(filteredArray([[3, 2, 3], [1, 6, 3], [3, 13, 26], [19, 3, 9]], 3));
17

1let numbers = [1,2,3,4,5];
2let numbersLength = numbers.length;
3for ( let i = 0; i < numbersLength; i++) {
4    console.log (numbers[i]);
5}

1var arr = [10, 9, 8, 7, 6];
2for (var i = 0; i < arr.length; i++) {
3   console.log(arr[i]);
4}
5

1var arr = [10, 9, 8, 7, 6];
2for (var i = 0; i < arr.length; i++) {
3   console.log(arr[i]);
4}