Formatting number fields displayed in email notifications

Discussion created by markgleveque on Aug 11, 2016

I am looking to format numbers that I display in email notifications that I generate through the GeoEvent Extension.  All I need is to insert commas as thousand separators and display only two digits after the decimal point.  I have experimented with some RegEx expressions but haven't gotten anything to work yet.  Has anyone done this type of formatting that they can share?