how to use array in for loop code example

Example 1: loop an array in javascript

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
}

Example 2: arrays with for loops

// Another way to write search that combines
// the "end of array" and "found" logic in one
// while loop. As a matter of style, we prefer
// the above version that uses the standard
// for-all loop.
public int searchNotAsGood(int[] nums, int target) {
  int i = 0;
  while (i<nums.length && nums[i]!=target) {
    i++;
  }
  // get here either because we found it, or hit end of array
  if (i==nums.length) {
    return -1;
  }
  else {
    return i;
  }
}