Compare two array of objects and return matching values in a new array-CodePudding

I have two arrays of objects: inputData and jobList. I have to compare the primarySkills array of both the array of objects and return only those values which are matching in both the array.My array of objects are as below:

let inputData = [
    {
        "candidateID": "911772331",
        "skillSet": ["Information Technology"],
        "addressCity": "Bengaluru",
        "addressState": "KA",
        "country": "India",
        "primarySkills": ['asp.net', 'react', 'javascript'],
        "secondarySkills": ['powerbi', 'redux'],
        "preferredPositionType": [],
    }
]

let jobList = [
  {
    jobId: '600039355',
    jobType: 'fulltime',
    primarySkills: [ 'javascript' ],
    secondarySkills: [ 'javascript' ],
    skillSet: [ 'javascript' ],
    Address: 'Indonesia, Bekasi Kabupaten, 53, Jalan Londan 5',
    City: 'Bekasi Kabupaten',
    State: 'JABODETABEK',
    Zipcode: '17522',
    Country: 'Indonesia'
  },
  {
    jobId: '562190375',
    jobType: 'fulltime',
    primarySkills: [ 'javascript' ],
    secondarySkills: [ 'javascript' ],
    skillSet: [ 'javascript' ],
    Address: 'India, Pune, 411001, Pune, Pune Station',
    City: 'Pune',
    State: 'MH',
    Zipcode: '411001',
    Country: 'India'
  },
  {
    jobId: '883826845',
    jobType: 'fulltime',
    primarySkills: [ 'sqlserver', 'azure', 'powershell' ],
    secondarySkills: [ 'powerbi' ],
    skillSet: [ 'powerbi' ],
    Address: 'ประเทศไทย, หมู่ที่ 3, 1234',
    City: 'หมู่ที่ 3',
    State: null,
    Zipcode: '57110',
    Country: 'ประเทศไทย'
  }
]

I have done the below mentioned code to achieve this:

jobList.forEach((item) => {
  inputData.forEach((data) => {
    for (let i = 0; i <= item.primarySkills.length; i  ) {
      for (let j = 0; j <= data.primarySkills.length; j  ) {
        if (item.primarySkills[i] === data.primarySkills[j]) {
          PMSkill.push(item.primarySkills[i]);
        } else {                                    
          PMSkill.push(0)
        }
      }
    }
  })
})

Kindly help me with his.Thanks in advance!!!

CodePudding user response：

Hi there is a simple method for that I use a lot

function arr_intersection(a1: number[], a2: number[]) {
  return a1.filter((x) => a2.includes(x));
}

you can also use the intersection method in lodash

const _ = require("lodash");
  
// Original array
let array1 = [1, 2, 4, 3, 4, 4]
let array2 = [2, 4, 5, 6]
let array3 = [2, 3, 5, 6]
  
// Using _.intersection() method
let newArray = _.intersection(
        array1, array2, array3);
  
// Printing original Array
console.log("original Array1: ", array1)
console.log("original Array2: ", array2)
console.log("original Array3: ", array3)
  
// Printing the newArray
console.log("new Array: ", newArray)

here you can send multiple array not like my method

CodePudding user response：

function getIntersection(x, y) {
  // ensure two arrays ...
  const [
    comparisonBase, // ... the shorter one as comparison base
    comparisonList, // ... the longer one to filter from.
  ] = [[...x], [...y]]
    .sort((a, b) => a.length - b.length);

  // create a `Map` based lookup table from the shorter array.
  const itemLookup = comparisonBase
    .reduce((map, item) => map.set(item, true), new Map)

  // the intersection is the result of following filter task.
  return comparisonList.filter(item => itemLookup.has(item));
}

const inputData = [{
  "candidateID": "911772331",
  "skillSet": ["Information Technology"],
  "addressCity": "Bengaluru",
  "addressState": "KA",
  "country": "India",
  "primarySkills": ['asp.net', 'react', 'javascript'],
  "secondarySkills": ['powerbi', 'redux'],
  "preferredPositionType": [],
}];
const jobList = [{
  jobId: '600039355',
  jobType: 'fulltime',
  primarySkills: [ 'javascript' ],
  secondarySkills: [ 'javascript' ],
  skillSet: [ 'javascript' ],
  Address: 'Indonesia, Bekasi Kabupaten, 53, Jalan Londan 5',
  City: 'Bekasi Kabupaten',
  State: 'JABODETABEK',
  Zipcode: '17522',
  Country: 'Indonesia'
}, {
  jobId: '562190375',
  jobType: 'fulltime',
  primarySkills: [ 'javascript' ],
  secondarySkills: [ 'javascript' ],
  skillSet: [ 'javascript' ],
  Address: 'India, Pune, 411001, Pune, Pune Station',
  City: 'Pune',
  State: 'MH',
  Zipcode: '411001',
  Country: 'India'
}, {
  jobId: '883826845',
  jobType: 'fulltime',
  primarySkills: [ 'sqlserver', 'azure', 'powershell' ],
  secondarySkills: [ 'powerbi' ],
  skillSet: [ 'powerbi' ],
  Address: 'ประเทศไทย, หมู่ที่ 3, 1234',
  City: 'หมู่ที่ 3',
  State: null,
  Zipcode: '57110',
  Country: 'ประเทศไทย'
}];

const candidateSkills = inputData[0].primarySkills;
const openJobsSkills = [...new Set(
  jobList.reduce((arr, { primarySkills }) => arr.concat(primarySkills), [])
)];

const skillIntersection = getIntersection(openJobsSkills, candidateSkills);

console.log({ candidateSkills, openJobsSkills, skillIntersection });

.as-console-wrapper { min-height: 100%!important; top: 0; }