This isn't something that most web developers know about because tuples aren't commonly used in web development. It's not because they aren't usefu...
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Well, there is a difference between the System.Tuple types and the new ValueTuple that has been added since C# 7. In fact
ValueTupleis a value type (not a reference type) which brings additional performance benefit and should be prefered overSystem.Tuple.Since you're mentioning that a
Tupleis a reference type and then mention the recently addedValueTuple, you could further complete the information with the fact that theValueTupleis a struct (value type) 👍.Important take into account that we need to use framework 4.6.2 in order to implement tuples and it has a feature for 7.1.
7.0:
int count = 5;
string label = "Colors used in the map";
var pair = (count: count, label: label);
7.1 (new feature default names):
int count = 5;
string label = "Colors used in the map";
var pair = (count, label); // element names are "count" and "label"
I love how C# is embracing good parts from other languages.
I use the 7.1 syntax in Javascript quite much and been tripping me much in C#.
Mathematically, a tuple is a "sorted list".