One of my favorite features of C# 6 is string interpolation. It helps move unnecessary string.format(...) noisy code.
Here's a quick example:
var person = new Person {FirstName = "Jose", LastName = "Gonzalez"};
var name = string.Format("My name is {0} {1}", person.FirstName, person.LastName);With C# 6 string interpolation becomes
var name = "My name is {person.FirstName} {person.LastName}";I admit this is a trivial example. But you can already see the code readability and terseness. Less code means less time spent reading code.
But let's kick up a notch!
There are times when you encounter code that has either a long string concatonation using +s or a StringBuilder (if you are lucky!). It gets fun when you have the embedded String.Format(...). I find this a common pattern in older code bases when executing a sql statement in code.
Enough talk. Let's look at some code.
public void GetData(int customerId, string businessCode)
{
StringBuilder query = new StringBuilder();
query.AppendLine("SELECT c.*");
query.AppendLine("FROM Customer c");
query.AppendLine("INNER JOIN Business b ON c.BussinessCode = b.BussinessCode AND c.CustomerId = b.CustomerId");
query.AppendLine("WHERE c.customerId = " + customerId + "");
query.AppendLine("AND b.businessCode = '" + businessCode.ToString() + "'");
//Do all the grunt work
ExecuteQuery(query.ToString());
}The code is too noisy.
Let's improve it.
Combine the string interpolation symbol $ with the @ verbatim literal symbol and get the following:
public void GetData(int customerId, string businessCode)
{
var query =
$@"SELECT c.*
FROM Customer c
INNER JOIN Business b ON c.BussinessCode = b.BussinessCode AND c.CustomerId = b.CustomerId
WHERE c.customerId = {customerId}
AND b.businessCode = '{businessCode}'";
//Do all the grunt work
ExecuteQuery(query);
}- The intend of our code becomes more relevant.
- Less noisy / cleaner code.
- Less code to read.
Use string interpolation to replace those annoying String.Formats.
Combine string interpolation and string literal $Q to create multiline string literals. It's a sweet and powerful combination to help you clean up your code.