How Can I Achieve Optimal String Concatenation Efficiency in .NET?

.NET string connection efficiency optimization

Program efficiency is crucial. Strings connection is a common operation. Choosing high -efficiency methods can significantly improve performance.

Based on the viewpoint of .NET performance expert Rico Mariani, the best strategy depends on the connection mode:

One -line connection

For a single connection mode similar to x = f1 (...) f2 (...) f3 (...) f4 (...), the operation efficiency is very high. Use StringBuilder will not bring significant performance improvement.

Condition connection

However, for the condition connection mode similar to if (...) x = f1 (...), StringBuilder has become an important optimization method. This is because StringBuilder has amortized by the cost of creating a new string every time by executing a single connection in the background. Further explain

C#authoritative expert Eric Lippert also discussed the details of the string connection. He emphasized that the compiler's optimization of one -line connection highlights its efficiency.

In .NET, in order to obtain the best string connection efficiency, please remember the following points:

One -line connection:

Use a direct connection operator.

Condition connection:

Use StringBuilder.
• Considering the use of StringBuilder: StringBuilder can significantly improve performance for the mode containing multiple connections.

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