> Le 12 août 2015 à 15:41, Edwin Reynoso <[email protected]> a écrit :
>
> Could we make the following possible, I can't seem to think of a way to do
> it, since template literals are evaluated with the current scope, also tried
> with `eval` but shouldn't even use that at all:
>
> ```JS
> String.substitute( { year: 2015 }, `This year is ${year}` ); // Returns "This
> year is 2015"
> ```
>
If you look closely, `String.substitute` is just the `with` statement
resurrected:
```js
with ({ year: 2015 }) {
`This year is ${year}`
}
```
At first glance, the `with` statement looked like a great idea, but in fact, it
makes static analysis difficult for both human and machines: In short: What do
you expect from:
```js
let shift = 1;
String.substitute( obj, `This year is ${year + shift}` );
```
when you don’t know a priori whether `obj` has a `year` property, and whether
it has a `shift` property?
—Claude
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