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  2. Comparison of programming languages (associative array)

    en.wikipedia.org/wiki/Comparison_of_programming...

    The keys and values can be of any type, except nil. The following focuses on non-numerical indexes. A table literal is written as { value, key = value, [index] = value, ["non id string"] = value }. For example:

  3. Associative array - Wikipedia

    en.wikipedia.org/wiki/Associative_array

    find the value (if any) that is bound to a given key. The argument to this operation is the key, and the value is returned from the operation. If no value is found, some lookup functions raise an exception, while others return a default value (such as zero, null, or a specific value passed to the constructor).

  4. Hash function - Wikipedia

    en.wikipedia.org/wiki/Hash_function

    The same technique can be used to map two-letter country codes like "us" or "za" to country names (26 2 = 676 table entries), 5-digit ZIP codes like 13083 to city names (100 000 entries), etc. Invalid data values (such as the country code "xx" or the ZIP code 00000) may be left undefined in the table or mapped to some appropriate "null" value.

  5. Hash table - Wikipedia

    en.wikipedia.org/wiki/Hash_table

    C++11 includes unordered_map in its standard library for storing keys and values of arbitrary types. [51] Go's built-in map implements a hash table in the form of a type. [52] Java programming language includes the HashSet, HashMap, LinkedHashSet, and LinkedHashMap generic collections. [53] Python's built-in dict implements a hash table in the ...

  6. Java ConcurrentMap - Wikipedia

    en.wikipedia.org/wiki/Java_ConcurrentMap

    For unordered access as defined in the java.util.Map interface, the java.util.concurrent.ConcurrentHashMap implements java.util.concurrent.ConcurrentMap. [2] The mechanism is a hash access to a hash table with lists of entries, each entry holding a key, a value, the hash, and a next reference.

  7. Today's Wordle Hint, Answer for #1258 on Thursday, November ...

    www.aol.com/todays-wordle-hint-answer-1258...

    If you’re stuck on today’s Wordle answer, we’re here to help—but beware of spoilers for Wordle 1258 ahead. Let's start with a few hints.

  8. Concurrent hash table - Wikipedia

    en.wikipedia.org/wiki/Concurrent_hash_table

    Mega-KV [7] is a high performance key-value store system, where the cuckoo hashing is used and the KV indexing is massively parallelized in batch mode by GPU. With further optimizations of GPU acceleration by Nvidia and Oak Ridge National Lab , Mega-KV was pushed to another high record of the throughput in 2018 (up to 888 millions of key-value ...

  9. Open addressing - Wikipedia

    en.wikipedia.org/wiki/Open_addressing

    Hash collision resolved by linear probing (interval=1). Open addressing, or closed hashing, is a method of collision resolution in hash tables.With this method a hash collision is resolved by probing, or searching through alternative locations in the array (the probe sequence) until either the target record is found, or an unused array slot is found, which indicates that there is no such key ...