Javascript concatenating numbers, not adding up

Question

It keeps concatenating my numbers into 2111 instead of 5. Why is this? I\'ve tried using parseInt with no luck. res3 btw represents a query into my database that I\'m execut

Answer 1

If the values are strings then they will be concatenated, not added numerically.

Try constructing a number from the string value:

dt_total_hours += Number(res3.fieldByName(dt_cost_per_hour));
//                ^------ Force a number here instead of a string.