icerge/stop_watch.md

## stop_watch.md

      
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              stop_watch.md
            
          
    Watch out performance of your queries!
var sw = new GlideStopWatch();  
var recGR = new GlideRecord('cmdb_ci');  
recGR.addQuery('sys_class_name', 'INSTANCEOF', 'cmdb_ci_server');  
recGR.addQuery('name', 'ABCDEF');  
recGR.setLimit(1);  
recGR.query();  
if (recGR.hasNext()) {  
  // exists  
} else {  
  // doesn't exist  
}  
gs.print('GlideRecord took ' + sw);