Javascript hashset
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'JavaScript Hashset' is a pure JS implementation of the HashSet data-type. It is suitable with for client usage and also for node.js . It is optimized for JavaScript search / lookup routines - which can be a performance bottleneck slow when iterating Arrays in JavaScript.
This is free software available at http://searchturbine.com/js/javascript-hashset under the BSD License.
Compatibility: Internet Explorer 5, IE5.5, IE6, IE7, IE8, IE9, IE10, IE11. Node, NPM, Chrome. FireFox, Opera, Konqueror. It has 'close to universal' JS compatibility.
A hashset is like an unordered array of values, but it can be searched for a value exponentially faster than a the native Array.contains or Array.indexOf functions. This makes it easier to write efficient, fast code. Hassets may use marginally more memory than normal arrays, but not exponentially more so.
Hashsets are hugely popular in optimized c# and Java programming - because they allow developers a very fast way for looking up (searc
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