> Le 23 mai 2017 à 16:34, Gareth Heyes <[email protected]> a écrit :
>
> Hi all
>
> I'd like to discuss this:-
>
> x=x=>{}/alert(1)/+alert(2)// alerts on edge, syntax error on other browsers
>
> So on Edge it results in two alerts but every other browser it's a syntax
> error. Personally I think Edge is right here because it's a function
> expression so why can't you use divide after.
This is not specific to the divide operator. If you try:
```js
x => {} * alert(1)
```
you'll get a SyntaxError in all browsers but Edge, which interprets it as `(x
=> {}) * alert(1)`.
Given how confusing that expression is, I think that the SyntaxError is the
right choice.
>
> x=>{}
> /alert(1)/+alert(2)//alerts twice on edge, once on other browsers
This follows from the ASI rules: non-Edge browsers add a missing semicolon
between the two lines, because otherwise it would be a syntax error for them.
—Claude
>
> Cheers
> Gareth
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