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C# Dictionary Lookup Slow? You’re Using It Wrong

- 13.12.25 - ErcanOPAK

This is inefficient:

if (dict.ContainsKey(key))
    value = dict[key];

✅ Correct Way

if (dict.TryGetValue(key, out var value))
{
    // use value
}

Why

  • Avoids double hash lookup

  • Faster under high frequency usage

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How to get formatted JSON in C#

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Post Views: 5

Post navigation

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