JAVASCRIPT

patterns in javascript

let n = 5; // row or column count
// defining an empty string
let string = "";

for(let i = 0; i < n; i++) { // external loop
  for(let j = 0; j < n; j++) { // internal loop
    string += "*";
  }
  // newline after each row
  string += "
";
}
// printing the string
console.log(string);


//result look like
/*

*****
*****
*****
*****
*****

*/

javascript patterns

let n = 5; // row or column count
// defining an empty string
let string = "";

for(let i = 0; i < n; i++) { // external loop
  for(let j = 0; j < n; j++) { // internal loop
    if(i === 0 || i === n - 1) {
      string += "*";
    }
    else {
      if(j === 0 || j === n - 1) {
        string += "*";
      }
      else {
        string += " ";
      }
    }
  }
  // newline after each row
  string += "
";
}
// printing the string
console.log(string);



/*

*****
*   *
*   *
*   *
*****

*/

javascript patterns

*
   **
  ***
 ****
*****