Javascriptキーワード

new function(){
  try{
    for(var i in void(0)){
      break;
    }
    if(typeof null instanceof 1)
      do with(0); while(false);
    else
      throw true
  }catch(a){
    switch(1){
      case 1: 
      default:
    }
  }finally{
    return delete this
  }
}