Resolve Function

%let first=Steve;
%let last=Hanks;

data _null_;
      name1='Mr '||"&first"||' '||"&last";
      name2=resolve('Mr &first &last');
      put name1;
      put name2;
run;

105 data _null_;
106 name1=‘Mr ’||”&first”||’ ’||”&last”;
107 name2=resolve('Mr &first &last');
108 put name1;
109 put name2;
110 run;

Mr Steve Hanks
Mr Steve Hanks