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String.charCodeAt should return int #7864

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Merged
merged 2 commits into from
Sep 10, 2025
Merged

String.charCodeAt should return int #7864

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String.charCodeAt should return int
cknitt Sep 9, 2025
b48531d
CHANGELOG
cknitt Sep 9, 2025
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2 changes: 1 addition & 1 deletion packages/@rescript/runtime/Stdlib_String.res
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Expand Up @@ -17,7 +17,7 @@ external compare: (string, string) => Stdlib_Ordering.t = "%compare"
@get_index external getUnsafe: (string, int) => string = ""
@send external charAt: (string, int) => string = "charAt"

@send external charCodeAt: (string, int) => float = "charCodeAt"
@send external charCodeAt: (string, int) => int = "charCodeAt"
@send external codePointAt: (string, int) => option<int> = "codePointAt"

@send external concat: (string, string) => string = "concat"
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4 changes: 2 additions & 2 deletions packages/@rescript/runtime/Stdlib_String.resi
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Expand Up @@ -220,12 +220,12 @@ See [`String.charCodeAt`](https://developer.mozilla.org/en-US/docs/Web/JavaScrip
## Examples

```rescript
String.charCodeAt(`😺`, 0) == 0xd83d->Int.toFloat
String.charCodeAt(`😺`, 0) == 0xd83d
String.codePointAt(`😺`, 0) == Some(0x1f63a)
```
*/
@send
external charCodeAt: (string, int) => float = "charCodeAt"
external charCodeAt: (string, int) => int = "charCodeAt"

/**
`codePointAt(str, index)` returns the code point at position `index` within
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