Carrot reference
Operators

+ (add)

an operator used to add two or more expressions syntax valueone + valuetwo + valuethree + sample usage 1 + 2 + 3 returns 6 "concat" + "enate" returns concatenate ('2021 01 01') + 1 returns 2021 01 02 supported data types if two numbers , money values, or percents are added together, the values will be added if either side is a string , then both sides will be concatenated as a string if either side is a list , then both sides are cast to lists and the two lists will be joined together if the left side is a date , and the right side is a number , it will return the date plus that many days if a money value and a number value are added, the money value will increase by the value of the number if a percent value and a number value are added, the number value will increase by the value of the percent see also number docid\ uci5tctfvbhonej6zqijg money docid ks5d2xbfor9d8wfrivny percent docid\ fbn7bfahlfpv4f1c53dxa string docid\ ujw2aqaktel5uuklup73s date docid\ xtaqdzvlbtakjxrnpfwe9 (subtract) docid\ x9joqmwhvhtajogmjlbua