Javascript: using placeholders %s, %d... in the javascript console and in strings - C++ sprintf-like syntax

gistfile1.js

/** www.lsauer.com 2011
 *  http://www.lsauer.com/2011/08/javascript-using-placeholders-s-d-in.html
*/
var r = (r||{
  t : "check",
  m : "mate",
  c: 10.10
});
console.log('It is '+r.t+r.m+' for Player A. Game Stat:'+r.c);

//By using placeholders, the same example statement can be written more clearly, as follows:
console.log('It is %s%s for Player A. Game Stat: %d',r.t, r.m, r.c);