javascript array loop

var colors = ['red', 'green', 'blue'];
	
	colors.forEach((color, colorIndex) => {
     console.log(colorIndex + ". " + color); 
    });

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

let colors = ['red', 'green', 'blue'];
for (const color of colors){
    console.log(color);
}

let array = ["loop", "this", "array"]; // input array variable
for (let i = 0; i < array.length; i++) { // iteration over input
	console.log(array[i]); // logs the elements from the current input
}

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

var array = ["hello","world"];
array.forEach(item=>{
	console.log(item);
});

var txt = "";
var numbers = [45, 4, 9, 16, 25];

numbers.forEach(myFunction);


function myFunction(value) {

   
txt = txt + value + "<br>"; 

}
 

  var i;
for (i = 0; i < cars.length; i++) { 
  text += cars[i] + "<br>";

 } 

for (let step = 0; step < 5; step++) {
  // Runs 5 times, with values of step 0 through 4.
  console.log('Walking east one step');
}