Page 191 - CSharp/C#

}
}

public static void Main()
{
var x = new MyClassWithIndexer()
{
["foo"] = 34,
["bar"] = 42,
[10] = "Ten",
[42] = "Meaning of life"
};
}
}

Output:

Index: foo, value: 34
Index: bar, value: 42
Index: 10, value: Ten
Index: 42, value: Meaning of life

It should be noted that the indexer set accessor might behave differently compared to an Add
method (used in collection initializers).

For example:

var d = new Dictionary<string, int>
{
["foo"] = 34,
["foo"] = 42,
}; // does not throw, second value overwrites the first one

versus:

var d = new Dictionary<string, int>
{
{ "foo", 34 },
{ "foo", 42 },
}; // run-time ArgumentException: An item with the same key has already been added.

String interpolation

String interpolation allows the developer to combine variables and text to form a string.

Basic Example

Two int variables are created: foo and bar.

int foo = 34;

https://riptutorial.com/ 137