why do we use loops in javascript code example

Example 1: Iterate with JavaScript For Loops

var myArray = [];
for (var i = 1; i <= 5; i++){
    myArray.push(i);
} 
console.log(myArray) // console output [ 1, 2, 3, 4, 5 ]

Example 2: problem solving for loop in javascript

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