Myths about velocity plus subtraction and other arithmetic

There was a freemarker in front of me. I did not cherish, met the velocity I just remembered the lost beautiful ...

Demand is the PC page click, Mobile Web click, app click Add to get total clicks show out:

$article. hits+ $article. waphits+ $article. mobilehits

Ideal is very good, the reality of output is: Number+number+number a large string (like that year. When you use the Freemarker. Add and subtract operations directly on, and now ... ）

It is said that you need to add a space on both sides of the arithmetic. All right. Try the following:

$article. Hits + $article. Waphits + $article. mobilehits

The velocity is not recognized. Give me the same output large string. I think of the lost Freemarker, the ear sounded "lost beautiful"

Well, then use the ultimate skill (put the operation in the velocity script):

#set ($total = $article. Hits + $article. Waphits + $article. mobilehits)                $total

Yes, I can, Commit ...

Myths about velocity plus subtraction and other arithmetic