# libtmux::Snapshot::index_of

- **Module:** libtmux::Snapshot
- **Package:** libtmux-cxx
- **Language:** C++
- **Kind:** method
- **Source:** https://github.com/libtmux/libtmux-cxx/blob/393d4b0ad666f18a6581f1eb281741a75a7503f0/include/libtmux/snapshot.hpp#L187
- **Page:** https://libtmux.org/en/cxx/latest/reference/libtmux-snapshot-index_of/

```
libtmux::Snapshot::index_of(field: std::string_view) -> std::size_t
```