Javascript Program to Check if all rows of a matrix are circular rotations of each other

// Javascript program to check if all rows of a matrix 
// are rotations of each other 

// Returns true if all rows of mat[0..n-1][0..n-1] 
// are rotations of each other. 
function isPermutedMatrix(mat, n) {

    // Creating a string that contains
    // elements of first row. 
    let str_cat = "";
    for (let i = 0; i < n; i++) {
        str_cat = str_cat + "-" +
            (mat[0][i]).toString();
    }

    // Concatenating the string with itself 
    // so that substring search operations  
    // can be performed on this 
    str_cat = str_cat + str_cat;

    // Start traversing remaining rows 
    for (let i = 1; i < n; i++) {

        // Store the matrix into vector in the form 
        // of strings 
        let curr_str = "";
        for (let j = 0; j < n; j++) {
            curr_str = curr_str + "-" +
                (mat[i][j]).toString();
        }

        // Check if the current string is present in 
        // the concatenated string or not 
        if (str_cat.includes(curr_str)) {
            return true;
        }
    }
    return false;
}

// Drivers code 
let n = 4;
let mat = [[1, 2, 3, 4],
[4, 1, 2, 3],
[3, 4, 1, 2],
[2, 3, 4, 1]];

if (isPermutedMatrix(mat, n))
    console.log("Yes")
else
    console.log("No")