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@elderbas
Created July 27, 2018 16:54
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ExistenceDictionary
class ExistenceDictionary {
constructor(valsToAdd = []) {
this.store = {};
valsToAdd.forEach((val) => {
this.store[val] = true;
})
}
exists(val) {
return this.store[val] === true;
}
add(val) {
this.store[val] = true;
}
remove(val) {
this.store[val] = undefined;
}
}
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