loop through javascript array

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})

1var colors = ["red","blue","green"];
2for (var i = 0; i < colors.length; i++) {
3    console.log(colors[i]);
4}

1var colors = ["red","blue","green"];
2colors.forEach(function(color) {
3  console.log(color);
4});

1const array = ["hello", "world"];
2
3for (item of array) {
4	//DO THIS
5}

1var myStringArray = ["hey","World"];
2var arrayLength = myStringArray.length;
3for (var i = 0; i < arrayLength; i++) {
4    console.log(myStringArray[i]);
5    //Do something
6}

1const numbers = [1, 2, 3, 4]
2numbers.forEach(number => {
3	console.log(number);
4}
5
6for (let i = 0; i < number.length; i++) {
7	console.log(numbers[i]);
8}