js-data-structures 
A collection of data structures written in JavaScript. Each data structure is enclosed in its own file, wrapped in a Universal Module Definition (UMD) API to make it easier to use across multiple platforms.
Detailed information on the complexity of each data structure is located here. To learn more about how some of the data structures are implemented, have a look at the technical articles on my blog.
Installing
npm install --save js-data-structures
Including
var FibonacciHeap = require("js-data-structures").FibonacciHeap;
Usage
See the source files for a list of public interfaces on each data structure, here is an example for the Fibonacci heap.
var heap = new FibonacciHeap();
heap.insert(3);
heap.insert(7);
heap.insert(8);
heap.insert(1);
heap.insert(2);
while (!heap.isEmpty()) {
console.log(heap.extractMinimum());
}
Contributing
I’d love to get some contributions for other data structures, if you want to make a pull request try to follow the existing style of the code and make sure you add tests for the new data structure.
Testing locally
npm install
npm test
# generate coverage report in ./coverage/
grunt coverage