hackreactor_diagnostic.js

//Q1
//Write a function 'transformFirstAndLast' that takes in an array, and returns an object with:
//1) the first element of the array as the object's key, and
//2) the last element of the array as that key's value.

function transformFirstAndLast(array) {
  //your code here
  var ans ={}
  ans[array[0]]=array[array.length-1]
  return ans
}
//Q2 Write a function called "getAllKeys" which returns an array of all the input object's keys.
function getAllKeys(obj) {
  var ans = [];
  for(var k in obj) {
    ans.push(k);
                    }
  return ans;
} 

//Q3
function fromListToObject(array)
{
  var ans= {}
  for (var i=0; i<array.length; i++)
  {
    ans[array[i][0]=array[i][1]
  }
        return ans
}
        
//Q4
function listAllValues(obj)
 {
   var ans =[];
   for(var k in obj) {
     ans.push(obj[k]);
   }
  return ans
}
  
  //Q5
  function transformEmployeeData(array) {
  // your code here
  var result = [];
  for(var i = 0; i < array.length; i++) {
    let tempObj = {};
    for(var j = 0; j < array[i].length; j++) {
      tempObj[array[i][j][0]] = array[i][j][1];
     
    }
     result.push(tempObj);
  }
  return result;
}
  //Q6
  function convertObjectToList(obj) {
  // your code here
  var result = [];
  for (var i in obj) {
    var pair = [];
    pair.push(i, obj[i]);
    result.push(pair);
  }
  return result;
}