Convert object array to hash map, indexed by an attribute value of the Object

Convert object array to hash map, indexed by an attribute value of the Object

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Array to Hash Ruby

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What is the best way to convert an array to a hash in Ruby

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Java: how to convert HashMap<String, Object> to array

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C# equivalent of C++ map<string,double>

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Using a byte array as Map key

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When to use HashMap over LinkedList or ArrayList and vice-versa

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Why is Arrays.fill() not used in HashMap.clear() anymore?

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How to do an array of hashmaps?

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"Cannot create generic array of .." - how to create an Array of Map<String, Object>?

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Why is creating a HashMap faster than creating an Object[]?

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Can an array be used as a HashMap key?

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Error Unchecked call to 'put(K, V)' as a member of raw type 'java.util.HashMap'

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How to make HashMap work with Arrays as key?

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Hashmap vs Array performance

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