//Instead of writing
text += cars[0] + "<br>";
text += cars[1] + "<br>";
text += cars[2] + "<br>";

for (let i = 0; i < cars.length; i++{
  text += cars[i] + "<br>";
}
     
syntax: for(statement 1; statement 2; statement 3){
  //code block to be executed
}     
     
//Statement 1 initializes the variable used in the loop (let i = 0). Many values can be initiated (separated by coma)
     
//Statement 2 evaluates the condition of the inital value. If it returns true, the loop will start over again, if it returns false, the loop wil end
     
//Statement 3 increments the value of the inital variable. It can do anything like negative increment (i--), and positive increment (i = i +15)