Get all possible key combinations in a deeply nested object

getAllKeyCombinationsInDeeplyNestedObject.js

const deeplyNestedObject = {
  name: "John Doe",
  age: 30,
  address: {
    street: "123 Main St",
    city: "Somewhere",
    postalCode: "12345",
    coordinates: {
      latitude: 37.7749,
      longitude: -122.4194,
      history: [
        { year: 2020, location: "New York", events: ["moved", "started job"] },
        { year: 2021, location: "Los Angeles", events: ["promoted", "bought a house"] }
      ]
    }
  },
  hobbies: [
    {
      name: "sports",
      types: ["basketball", "soccer"],
      favoriteTeams: {
        basketball: "LA Lakers",
        soccer: "FC Barcelona",
      }
    },
    {
      name: "music",
      genres: ["rock", "jazz", "classical"],
      favoriteArtists: [
        { genre: "rock", artists: ["The Beatles", "Queen"] },
        { genre: "jazz", artists: ["Miles Davis", "John Coltrane"] },
        { genre: "classical", artists: ["Beethoven", "Mozart"] }
      ]
    }
  ],
  education: {
    degrees: [
      {
        level: "Bachelor's",
        major: "Computer Science",
        university: "University of Somewhere",
        graduationYear: 2015,
        coursework: [
          { name: "Algorithms", grade: "A" },
          { name: "Operating Systems", grade: "B+" }
        ]
      },
      {
        level: "Master's",
        major: "Data Science",
        university: "Tech University",
        graduationYear: 2018,
        coursework: [
          { name: "Machine Learning", grade: "A+" },
          { name: "Data Visualization", grade: "A" }
        ]
      }
    ]
  },
  workExperience: [
    {
      company: "TechCorp",
      role: "Software Engineer",
      years: 4,
      projects: [
        {
          name: "Project Alpha",
          description: "Built a web app for managing internal workflows.",
          team: [{ name: "Alice", role: "Frontend" }, { name: "Bob", role: "Backend" }]
        },
        {
          name: "Project Beta",
          description: "Developed an API for real-time data analytics.",
          team: [{ name: "Charlie", role: "Fullstack" }, { name: "Dana", role: "Data Scientist" }]
        }
      ]
    },
    {
      company: "DataInsights",
      role: "Data Scientist",
      years: 3,
      projects: [
        {
          name: "Data Exploration Tool",
          description: "Developed a tool for exploring large datasets.",
          technologies: ["Python", "Pandas", "D3.js"],
          results: {
            efficiency: "Increased data processing by 30%",
            userAdoption: "90% adoption rate among analysts"
          }
        }
      ]
    }
  ]
};

const allFields = [];

const getSearchableFields = (container, currentKey = null, keyTillNow = "") => {
    if (Array.isArray(container) && container.length > 0) {
        for (const element of container) {
            getSearchableFields(element, currentKey, keyTillNow);
        }
        return;
    }

    if (typeof container === 'object') {
        Object.keys(container).forEach(key => {
            getSearchableFields(container[key], key, `${keyTillNow.length > 0 ? keyTillNow + '.' + key : key}`);
        }, []);
    }

    allFields.push(keyTillNow);
};

getSearchableFields(deeplyNestedObject);
console.log(allFields);