هرمش - محرر الكود

var n;

do 
{
    write("Enter number of lines: ");
    n = read();
}
while (n<1 || n>9 || isNaN(n));

for (var i=1; i<=n; i++)
{
    for (var k=1; k<=n-i; k++)
    {
		write(" ");
    }
    
    for (var j=1; j<=(i*2)-1; j++)
    {
		if (j==1 || j==(i*2)-1 || i==n)
		{
			write(i);
        }
		else 
		{
			write(" ");
        }
    }
	
    write("\n");
}