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nlohmann
36 lines
621 B
Markdown
36 lines
621 B
Markdown
# <small>nlohmann::json_pointer::</small>pop_front
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```cpp
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void pop_front();
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```
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Remove the first reference token.
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## Exceptions
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Throws [out_of_range.405](../../home/exceptions.md#jsonexceptionout_of_range405) if the JSON pointer has no parent.
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## Complexity
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Linear in the number of reference tokens in the `json_pointer`.
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## Examples
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??? example
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The example shows the usage of `pop_front`.
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```cpp
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--8<-- "examples/json_pointer__pop_front.cpp"
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```
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Output:
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```json
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--8<-- "examples/json_pointer__pop_front.output"
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```
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## Version history
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- Added in version 3.12.x.
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