Improve record matching

[hugoatjoget]

export-csv-or-excel/src/main/java/org/joget/marketplace/DownloadCsvOrExcelDatalistAction.java

Line 173 in 7effb9e

for (int y=0; y<rowKeys.length; y++) {

We seem to be running 2 loops, and the second loop run in full until record matches. I think we should try to use HashMap.containsKey() to improve performance.

The java.util.HashMap.containsKey() method is used to check whether a particular key is being mapped into the HashMap or not. It takes the key element as a parameter and returns True if that element is mapped in the map.