I just found out some 🙀 funny things about javascript, If someone able to explain I really appreciate

```
'A'+'A'
// output 'AA'
'1'+'1'
// output '11'
// Okay that make sense but ...
'1'+'1'*2
// output 12
'1'+'1'/2
// output 10.5
// It's start getting weird then ....
'1'-'1'
// output 0
'1'-'1'/2
// output 0.5
// It's correct , but why ?
```

## Top comments (2)

Executing

`+`

on two string concatenates the strings. This explains "AA" and "11".Now

`-`

,`/`

and`*`

are seen as math operations. Given that a multiplictation or division is done before addition and subtraction the other parts can be explained like this:You can see that the parts in a subtraction, multiplication, division get parsed to a number if you try the following:

If there is a numerical operation then the string is converted into a number. The + is a string concatenation operator and a numerical operator, string wins in this case. So "1" concatenate the result of 1*2 = 2 becomes "12" as a string.

Note that

`+`

on its own is always a numerical operator which is why you might see this:The

`+a`

is bound to convert`a`

to be a number (if possible) etc.