std::jthread::operator=
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                    | std::jthread& operator=( std::jthread&& other ) noexcept; | (since C++20) | |
If *this still has an associated running thread (i.e. joinable() == true), calls request_stop() followed by join(). Assigns the state of other to *this and sets other to a default constructed state.
After this call, this->get_id() is equal to the value of other.get_id() prior to the call and the associated stop-state is also moved, and other no longer represents a thread of execution nor has any stop-state.
Parameters
| other | - | another jthreadobject to assign to thisjthreadobject | 
Return value
*this