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Fastest way to concatenate ReadOnlySpan lt;char gt; in C# What's the most efficient way to concatenate strings, if I already only have ReadOnlySpan slices? Simplified example: public class Program { public string ConcatSpans (string longstring) {
Efficient String Concatenation in C# Using Span lt;string gt; Using Span<string> for string concatenation is a small but powerful optimization in modern C# It combines clarity, performance, and memory efficiency, all while leveraging the newer string Concat(ReadOnlySpan<string>) API
Improving C# Performance by Using AsSpan and Avoiding Substring We'll compare the traditional Substring method with the newer AsSpan method and discuss when to use each for maximum efficiency The Substring method is a commonly used tool for extracting substrings from a string in C# While it's convenient and easy to use
c# - Concatenate ReadOnlySpan lt;char gt; - Stack Overflow Spans generally refer to pre-existing memory To do what you want, you'd essentially need to allocate a new string or char-array, and then overwrite them (yes, you can overwrite string - immutability is a lie) using the source spans Concatenation isn't readily built in AFAIK
CA1845: Use span-based string. Concat - GitHub Calling Substring produces a copy of the extracted substring By using AsSpan instead of Substring and calling the overload of string Concat that accepts spans, you can eliminate the unnecessary string allocation To fix violations: Replace calls to Substring with calls to AsSpan
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