Jun 13, 2014 · Not a duplicate - a HashSet and a Dictionary are very different. A Dictionary let's you retrieve the object. A HashSet doesn't let you retrieve the object but only tells you if one is there.

Check if element is in hashset Asked 13 years, 1 month ago Modified 7 years, 10 months ago Viewed 5k times

Sep 17, 2015 · I want to use a data structure in JavaScript that can be used to store number of IDs. I should be able to check if a key already exists in that set, something like Java Sets.

Mar 10, 2015 · MDN references JavaScript's Set collection abstraction. I've got an array of objects that I'd like to convert to a set so that I am able to remove (.delete()) various elements by name: var array …

Jan 16, 2012 · I'm now trying to put all these vectors into a JavaScript hash map to analyze the performance. I want to know how is the hash map in JavaScript implemented, is it a real hash …

Mar 26, 2010 · I'm looking for a decent implementation of a set data structure in JavaScript. It should be able to support elements that are plain JavaScript objects. So far I only found Closure Library's structs...

Feb 7, 2018 · What is the JavaScript equivalent to java LinkedHashSet? Asked 7 years, 11 months ago Modified 7 years, 11 months ago Viewed 3k times

134 Unless you have a specific reason not to, just use a normal object. Object properties in JavaScript can be referenced using hashtable-style syntax:

Oct 1, 2020 · I'm a Python developer, making my first steps in JavaScript. I started using Map and Set. They seem to have the same API as dict and set in Python, so I assumed they're a hashtable and I …

Dec 3, 2011 · In Eloquent JavaScript, Chapter 4, a set of values is created by creating an object and storing the values as property names, assigning arbitrary values (e.g. true) as property values. To …