javascript for loop

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

1for (var i; i < 10; i++) {
2  
3}

1for (let count = 0; count < 90; count++) {
2	// ...
3}

1var nums = [1, 2, 3, 5];
2for (var i = 0; i,nums.length; i++){
3	console.log(nums[i]);
4}  

1var i;
2for (i = 0; i < 10 ; i++) {
3  //do something
4}

1const Color = ["Red", "Blue", "Green"];
2for (i = 0; i < Color.length; i++) { 
3  console.log(Color[i]);
4}

1for (var i = 0; i < 4; i++) {
2 
3}

1let my_capacity = 15;
2for (let my_var = 0; my_var < my_capacity; my_var++)
3{
4  console.log(my_var)
5}

1// for loop keeps running while condition is TRUE
2for (let rep = 1; rep <= 10; rep++) {
3   console.log(`Lifting weights repetition ${rep}`);
4}

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6salom