inserting and at the end of a loop in javascript code example

Example 1: js loop

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

Example 2: javascript for loops

JavaScript For Loop: Summary
There are three types of for loops: the regular for loop, the for/in loop and for/of loop.
The for loop iterates through an array.
The for/in loop iterates through the properties of an object.
The for/of loop iterates through iterable objects, like arrays and strings.