I am trying to learn Javascript. Here I am confused with the following code.
http://rendera.heroku.com/usercode/eae2b0f40cf503b36ee346f5c511b0e29fc82f9e
When I put x+y
in the function it is going wrong. For example 2+2=22
, 5+7=57
But /
, *
, -
are working. Why is +
not working? Please help me. Thanks a lot in advance