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nlohmann
2026-10-03 05:43:12 +00:00
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api/json_pointer/front/index.md
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@@ -10,6 +10,10 @@ Return the first reference token.
First reference token.
## Exception safety
Strong exception safety: if an exception occurs, the original value stays intact.
## Exceptions
Throws [out_of_range.405](https://json.nlohmann.me/home/exceptions/#jsonexceptionout_of_range405) if the JSON pointer has no parent.
@@ -49,6 +53,12 @@ first reference token of "/foo" is "foo"
first reference token of "/foo/0" is "foo"
```
## See also
- [back](https://json.nlohmann.me/api/json_pointer/back/index.md) return last reference token
- [pop_front](https://json.nlohmann.me/api/json_pointer/pop_front/index.md) remove the first reference token
- [push_front](https://json.nlohmann.me/api/json_pointer/push_front/index.md) append an unescaped token at the start of the pointer
## Version history
- Added in version 3.13.0.
- Added in version 3.13.0 unreleased.