SEQEN

High performance sequence engine in Javascript that optimizes execution of sequences in Immutable.js and provides fast incremental processing of insert, update, and delete operations. Fully integrated with DUXEN.

See http://applitopia.github.io/seqen for detailed documentation.

Installation

npm install seqen

Example

const cmp=(a,b)=>(a>b?1:a<b?-1:0)
 
const recipe = (seq) => seq
  .filter((v, k) => (k % 2 == 1))
  .map((v) => v.toLowerCase())
  .sort((a, b): number => cmp(a, b))
 
const map = Map().withMutations((map) => {
  map.set(1, "Peter");
  map.set(2, "Xavier");
  map.set(3, "Alex");
  map.set(4, "David");
  map.set(5, "John");
});
 
const seqen = new Seqen(map, recipe);
 
const result1 = seqen.result().toIndexedSeq().toJS();
 
expect(result1).toEqual(["alex", "john", "peter"]);

License

MIT