Tell us what’s happening:
I am trying to use every to return a boolean that will determine if every element in firstSet is contained in otherset. All but the 2nd and 3rd test passed and I am confused as to what to troubleshoot to get all the tests to pass.
Your code so far
function Set() {
// the var collection will hold the set
var collection = [];
// this method will check for the presence of an element and return true or false
this.has = function(element) {
return (collection.indexOf(element) !== -1);
};
// this method will return all the values in the set
this.values = function() {
return collection;
};
// this method will add an element to the set
this.add = function(element) {
if(!this.has(element)){
collection.push(element);
return true;
}
return false;
};
// this method will remove an element from a set
this.remove = function(element) {
if(this.has(element)){
var index = collection.indexOf(element);
collection.splice(index,1);
return true;
}
return false;
};
// this method will return the size of the collection
this.size = function() {
return collection.length;
};
// this method will return the union of two sets
this.union = function(otherSet) {
var unionSet = new Set();
var firstSet = this.values();
var secondSet = otherSet.values();
firstSet.forEach(function(e){
unionSet.add(e);
});
secondSet.forEach(function(e){
unionSet.add(e);
});
return unionSet;
};
// this method will return the intersection of two sets as a new set
this.intersection = function(otherSet) {
var intersectionSet = new Set();
var firstSet = this.values();
firstSet.forEach(function(e){
if(otherSet.has(e)){
intersectionSet.add(e);
}
});
return intersectionSet;
};
// this method will return the difference of two sets as a new set
this.difference = function(otherSet) {
var differenceSet = new Set();
var firstSet = this.values();
firstSet.forEach(function(e){
if(!otherSet.has(e)){
differenceSet.add(e);
}
});
return differenceSet;
};
// change code below this line
this.subset = function(otherSet){
var firstSet = this.values();
return firstSet.every(function(e){
otherSet.has(e);
});
//return subset
}
// change code above this line
};
let SetA = new Set();
let SetB = new Set();
SetA = ['a','b']
SetB = ['a','b','c','d']
console.log(SetA.subset(SetB))
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Challenge: Perform a Subset Check on Two Sets of Data
Link to the challenge:
https://www.freecodecamp.org/learn/coding-interview-prep/data-structures/perform-a-subset-check-on-two-sets-of-data
