Retrieve key and values from object in an array JavaScript

We are required to write a JavaScript function that takes in an object that maps literal values. The function should create an array of array, each subarray should contain exactly two elements.

The first of which should be the key of corresponding object pair and second should be the value.

Example

const obj = {
   name: 'Nick',
   achievements: 158,
   points: 14730
};
const retrieveProperties = (obj = {}) => {
   const res = [];
   for(key in obj){
      res.push([ key, obj[key] ]);
   };
   return res;
};
console.log(retrieveProperties(obj));

Output

And the output in the console will be −

[ [ 'name', 'Nick' ], [ 'achievements', 158 ], [ 'points', 14730 ] ]

AmitDiwan

Published on 25-Nov-2020 07:57:51

• Related Questions & Answers
• Retrieve user id from array of object - JavaScript
• How to return object from an array with highest key values along with name - JavaScript?
• Sum from array values with similar key in JavaScript
• Creating a JavaScript Object from Single Array and Defining the Key Value?
• Retrieve values from nested JSON array in MongoDB?
• How to modify key values in an object with JavaScript and remove the underscore?
• JavaScript: How to Create an Object from Key-Value Pairs
• Iterate through Object keys and manipulate the key values in JavaScript
• From JSON object to an array in JavaScript
• Extract unique values from an array - JavaScript
• Converting a JavaScript object to an array of values - JavaScript
• Select random values from an array in JavaScript?
• Find unique and biggest string values from an array in JavaScript
• Looping numbers with object values and push output to an array - JavaScript?
• Building a frequency object from an array JavaScript