Some time ago, I introduced a method in Spargine named PerformAction() designed to enhance the efficiency of processing data within collections. Subsequently, I integrated this method into FastStringBuilder with the aim of optimizing the speed of processing strings.

The conventional approach developers employ to concatenate a collection of words into a single string typically involves utilizing a StringBuilder:

var sb = new StringBuilder();

for (var index = 0; index < this._words.Length; index++)
{
    _ = sb.Append(this._words[index]);
}

return sb.ToString();

However, we can significantly expedite this process by leveraging PerformAction(), as illustrated below:

Action<StringBuilder> action = (StringBuilder sb) =>
{
    for (var index = 0; index < this._words.Length; index++)
    {
        _ = sb.Append(this._words[index]);
    }
};

return FastStringBuilder.PerformAction(action);

Benchmark Results

The results clearly demonstrate that using PerformAction() yields a performance increase of 1.79 times while also reducing memory allocation.

Allocations: Normal: 272 – 13,984 bytes, PerformAction(): 128 – 5,208 bytes.

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