js两串代码怎么在浏览器里面换行输出

Question

        var b;
        b = " 123";
        b = Number(b);
        document.write(typeof b  ) ;
        document.write(b );
 

        var a;
        a = null ;
        a = String(a);
        document.write(typeof a);
        document.write(a);

现在它在浏览器就这样连着输出，看的很难受
number123stringnull
想把它变成这样的
number 123
string null

Answer 1

 
        var b;
        b = " 123";
        b = Number(b);
        document.write(typeof b  ) ;
        document.write(b );
        document.write("<br/>")
 
        var a;
        a = null ;
        a = String(a);
        document.write(typeof a);
        document.write(a);