Contents

export default class CustomSet {
  constructor(data = []) {
    this.data = {};
    data.forEach(el => this.add(el));
  }

  add(el) {
    this.data[el] = el;
    return this;
  }

  delete(el) {
    delete this.data[el];
    return this;
  }

  size() {
    return Object.keys(this.data).length;
  }

  empty() {
    return this.size() === 0;
  }

  contains(el) {
    return this.data[el] !== undefined;
  }

  eql(other) {
    return this.size() === other.size() && this.difference(other).size() === 0;
  }

  difference(other) {
    return new CustomSet(Object.keys(this.data).filter(el => other.data[el] === undefined));
  }

  disjoint(other) {
    return this.size === 0 || this.difference(other).size() === this.size();
  }

  intersection(other) {
    return this.difference(this.difference(other));
  }

  union(other) {
    return new CustomSet(this.toList().concat(other.toList()));
  }

  subset(other) {
    return this.eql(this.intersection(other));
  }

  toList() {
    return Object.values(this.data);
  }
}

Version data entries

149 entries across 149 versions & 1 rubygems

Version	Path
trackler-2.2.1.180	tracks/ecmascript/exercises/custom-set/example.js
trackler-2.2.1.179	tracks/ecmascript/exercises/custom-set/example.js
trackler-2.2.1.178	tracks/ecmascript/exercises/custom-set/example.js
trackler-2.2.1.177	tracks/ecmascript/exercises/custom-set/example.js
trackler-2.2.1.176	tracks/ecmascript/exercises/custom-set/example.js
trackler-2.2.1.175	tracks/ecmascript/exercises/custom-set/example.js
trackler-2.2.1.174	tracks/ecmascript/exercises/custom-set/example.js
trackler-2.2.1.173	tracks/ecmascript/exercises/custom-set/example.js
trackler-2.2.1.172	tracks/ecmascript/exercises/custom-set/example.js
trackler-2.2.1.171	tracks/ecmascript/exercises/custom-set/example.js
trackler-2.2.1.170	tracks/ecmascript/exercises/custom-set/example.js
trackler-2.2.1.169	tracks/ecmascript/exercises/custom-set/example.js
trackler-2.2.1.167	tracks/ecmascript/exercises/custom-set/example.js
trackler-2.2.1.166	tracks/ecmascript/exercises/custom-set/example.js
trackler-2.2.1.165	tracks/ecmascript/exercises/custom-set/example.js
trackler-2.2.1.164	tracks/ecmascript/exercises/custom-set/example.js
trackler-2.2.1.163	tracks/ecmascript/exercises/custom-set/example.js
trackler-2.2.1.162	tracks/ecmascript/exercises/custom-set/example.js
trackler-2.2.1.161	tracks/ecmascript/exercises/custom-set/example.js
trackler-2.2.1.160	tracks/ecmascript/exercises/custom-set/example.js