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  1. // your code goes here
  2.  
  3.  
  4.     function Person(name, gender, maritalStatus) {
  5.         this.name = name;
  6.         this.gender = gender;
  7.         this.maritalStatus = maritalStatus;
  8.     }
  9.  
  10.     const maleCriteria = {
  11.         filter: (people) => people.filter(person => person.gender === 'Male')
  12.     };
  13.  
  14.     const singleCriteria = {
  15.         filter: (people) => people.filter(person => person.maritalStatus === 'Single')
  16.     };
  17.  
  18.     const andCriteria = (criteria1, criteria2) => ({
  19.         filter: (people) => criteria2.filter(criteria1.filter(people))
  20.     });
  21.  
  22.     const orCriteria = (criteria1, criteria2) => ({
  23.         filter: (people) => {
  24.             const firstFiltered = criteria1.filter(people);
  25.             const secondFiltered = criteria2.filter(people);
  26.             return [...new Set([...firstFiltered, ...secondFiltered])];
  27.         }
  28.     });
  29.  
  30.     const people = [
  31.         new Person("Robert", "Male", "Single"),
  32.         new Person("John", "Male", "Married"),
  33.         new Person("Laura", "Female", "Married"),
  34.         new Person("Diana", "Female", "Single")
  35.     ];
  36.  
  37.     const singleMaleCriteria = andCriteria(maleCriteria, singleCriteria);
  38.     const singleMales = singleMaleCriteria.filter(people);
  39.  
  40.     console.log(JSON.stringify(singleMales));
  41.     // Expected output: [ Person { name: 'Robert', gender: 'Male', maritalStatus: 'Single' } ]
Success #stdin #stdout 0.04s 16604KB
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Standard input is empty
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[{"name":"Robert","gender":"Male","maritalStatus":"Single"}]
https://ideone.com/t7ZCBV
language:
JavaScript (SMonkey 60.2.3)
created:
2 days ago
visibility:
public

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