Visual Basic .NET Language Visual Basic 14.0 Features String interpolation
Example
This new feature makes the string concatenation more readable. This syntax will be compiled to its equivalent String.Format call.
Without string interpolation:
String.Format("Hello, {0}", name)
With string interpolation:
$"Hello, {name}"
The two lines are equivalent and both get compiled to a call to String.Format.
As in String.Format, the brackets can contain any single expression (call to a method, property, a null coalescing operator et cetera).
String Interpolation is the preferred method over String.Format because it prevents some runtime errors from occurring. Consider the following String.Format line:
String.Format("The number of people is {0}/{1}", numPeople)
This will compile, but will cause a runtime error as the compiler does not check that the number of arguments match the placeholders.
