Design Pattern

Write a code to generate a square pattern using the number '1'.

Input Description:
Given an integer R indicates number of rows.

Where 1<=R<=100.

Output Description:
Print the square pattern with the number '1' in R*R form based on the given integer R.

My Code is

let n = userInput[0];

let str = "";

for (let i=1; i<=n; i++) {

if (1<=n && n<=100) {

for (let j=1; j<=n; j++ ) {

str+=("1")

}

}

str+="\n"

}

console.log(str)

Sample Input :
5

Sample Output :
11111
11111
11111
11111
11111