[code:JScript]
// simple

YAHOO.lang.substitute('Hello {world}', {'world':'earth'});

// process
var processText = function(key, value, extraInfo) {
  if(!YAHOO.lang.isNull(extraInfo)) {
    return extraInfo;
  }
  return value.toUpperCase();
};
YAHOO.lang.substitute('Hello {world Venus, Jupiter}', {'world':'earth'}, processText);

[code:JScript]
var foo = {
  count :0,
  'method' : function(data) {
    this.count++;
    if(this.count == 10) {
      timer.cancel();
    }
    console.log(this.count);
  }
} 
var timer = YAHOO.lang.later(1000, foo, 'method', [{data:'bar', data2:'zeta'}], true);

[code:JScript]
var myAwesomelWidget = function(oConfigs) {
  oConfigs = oConfigs || {};
  var defaults = {
    'awesomeness' : '11',
    'shiny'       : 'high',
    'sparkle'     : 'high'
  }
 
  var combinedConfigs = YAHOO.lang.merge(defaults, oConfigs);
  //Shiny is now set to low, everything else in combinedConfigs is set to the defaults
};
myAwesomelWidget({'shiny': 'low'});