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A lookup (table) is an array that replaces run-time computation with a simpler array indexing operation. The savings in terms of processing time can be significant, since retrieving a value from memory is often faster than undergoing an 'expensive' computation or input/output operation. Over time the definition has become less strict, any kind of searching with a key value can be considered a lookup.

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Multiple indexes over an in memory collection for faster search

RebuildIndexes(); } public void RebuildIndexes() { if (_lookups.Count > 0) { _indexes = new Dictionary<string, ILookup<object, T>>(); foreach (var lookup
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