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The Set Class in Javascript
Here is the complete implementation of the MySet class.
Example
class MySet { constructor() { this.container = {}; } display() { console.log(this.container); } has(val) { return this.container.hasOwnProperty(val); } add(val) { if (!this.has(val)) { this.container[val] = val; return true; } return false; } delete(val) { if (this.has(val)) { delete this.container[val]; return true; } return false; } clear() { this.container = {}; } forEach(callback) { for (let prop in this.container) { callback(prop); } } static union(s1, s2) { if (!s1 instanceof MySet || !s2 instanceof MySet) { console.log("The given objects are not of type MySet"); return null; } let newSet = new MySet(); s1.forEach(elem => newSet.add(elem)); s2.forEach(elem => newSet.add(elem)); return newSet; } static difference(s1, s2) { if (!s1 instanceof MySet || !s2 instanceof MySet) { console.log("The given objects are not of type MySet"); return null; } let newSet = new MySet(); s1.forEach(elem => newSet.add(elem)); s2.forEach(elem => newSet.delete(elem)); return newSet; } }
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