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🛠 Pre-allocate StringBuilder capacity
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@ -129,7 +129,7 @@
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/// <paramref name="count"/> times.</returns>
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public static string Repeat(this string str, int count)
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{
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StringBuilder builder = new StringBuilder();
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StringBuilder builder = new StringBuilder(str.Length * count);
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for (int i = 0; i < count; i++)
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{
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