如何在 JavaScript 中将二维数组转换为二维 object？

Question

So I'm trying to pass some JSON objects from NODE to client side JavaScript though EJS templates. The issue I'm facing is that i cannot create a 2D object from my 2D array. The code below is used in NODE to pass the object into the EJS template:

 let json_jobs = {}; let singleJSON = {}; let array_jobs = [ ["aaaa", "title_1", "fulltime", "location1"], ["bbbb", "title_2", "parttime", "location2"], ["cccc", "title_3", "fulltime", "location3"], ["dddd", "title_4", "flex", "location4"] ]; for (let i = 0; i < array_jobs.length; i++) { singleJSON = { index: i, id: array_jobs[i][0], title: array_jobs[i][1], contract_type: array_jobs[i][2], location: array_jobs[i][3] } console.log(typeof(singleJSON )); console.log(singleJSON ); json_jobs += { job: singleJSON[i] } } console.log(typeof(json_jobs)); console.log(json_jobs); //return res.render('pages/searchJobs', {job_data: array_jobs});

The issue is that i cannot add push object using the += operator and there is no function push() to use for javascript objects? Any ideas how to solve this?

This is what i want my final object to be:

    let json_jobs= {
      {
          job: {
              index: 0,
              id: "aaaa",
              title: "title1",
              contract_type: "fulltime",
              location: "location1"
          },
          job: {
              index: 1,
              id: "bbbb",
              title: "title2",
              contract_type: "parttime",
              location: "location2"
          },
          ....
      }

Answer 1

You could destructure the row and return an object with short hand properties .

 let array_jobs = [ ["aaaa", "title_1", "fulltime", "location1"], ["bbbb", "title_2", "parttime", "location2"], ["cccc", "title_3", "fulltime", "location3"], ["dddd", "title_4", "flex", "location4"]], result = array_jobs.map(([id, country, contract_type, location], index) => ({ index, id, country, contract_type, location })); console.log(result);

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

Answer 2

The job property must be an array to store multiple objects.

 let json_jobs = {jobs: []}; let singleJSON = {}; let array_jobs = [ ["aaaa", "title_1", "fulltime", "location1"], ["bbbb", "title_2", "parttime", "location2"], ["cccc", "title_3", "fulltime", "location3"], ["dddd", "title_4", "flex", "location4"] ]; for (let i = 0; i < array_jobs.length; i++) { singleJSON = { index: i, id: array_jobs[i][0], title: array_jobs[i][1], contract_type: array_jobs[i][2], location: array_jobs[i][3] } json_jobs.jobs.push(singleJSON); } console.log(json_jobs);