Proposal: set only non-null values or do nothing

[DES-Destry]

Low level C#

string oldValue = "value";
string? newNullValue = null;

if (newNullValue != null)
{
    oldValue = newNullValue;
}

Newest C# alternative

oldValue = newNullValue ?? oldValue;

Proposal of new syntax (<<=)

string oldValue = "value";
string? newNullValue = null;
string newValue = "new";

oldValue <<= newNullValue; // oldValue = "value"
oldValue <<= newValue; // oldValue = "new"

I've found it handy in API development in cases, when client don't have to update all of entities fields with one update method.

[HaloFour]

See: #7560

[DES-Destry]

I was making sure, that it's not exists...
Thanks