There are scenarios where we need to convert a javascript object into an array and we can easily achieve that using Object class methods. Example: Consider the following object – In this tutorial, we are going to learn about three different ways to convert an object into an array in JavaScript. Woohoo The task is to convert an Object {} to an Array [] of key-value pairs using JavaScript. We have 3 variations to convert an Object to an Array Array has an array of methods (sorry, bad pun ). The Object.keys() takes the object as an argument and returns the Object properties in an array. Today, let us look at how to do the opposite: convert a string back to an array.. String.split() Method The String.split() method converts a string into an array of substrings by using a separator and returns a new array. – iGanja Oct 31 '17 at 17:07 Using the Object.keys() method. Hey guys in this article we will discuss how to convert Javascript objects into an array. Granted the objects are normally all the same structure, but we use arrays of objects all the time, quite painlessly. Convert an Array to an Object. To convert JavaScript object to array, we can use two functions – Object.keys() and Object.values(). Previously, converting from an object to an array was the only direction with built-in methods for the Object class. Typescript is superset of javascript with compile type checking. How is an array of objects "a pain to use in javascript"? Let’s discuss this in detail. In an earlier article, we looked at how to convert an array to string in vanilla JavaScript. Converting an array-like object into an array using the spread operator (which was introduced in ES6) only works on objects that are iterable. This means that Array-like Objects can't access common Array prototype methods like forEach() , push() , map() , filter() , and slice() : Typescript Object Array. The result is not always what you expect: 5 + null // returns 5 because null is converted to 0 Wow, these comments make my head hurt. However, one key difference between Arrays and Array-like Objects is that Array-like objects inherit from Object.prototype instead of Array.prototype. Finally, with ES2017, it's official now! When JavaScript tries to operate on a "wrong" data type, it will try to convert the value to a "right" type. Let’s discuss all the methods in brief. So by converting the object into an array, you have access to all of that. Suppose, our javascript object is – var jsObj = { key1 : 'value 1', key2 : 'value 2', }; Now, if you want to for loop through this object, you will need to first convert Every … In Application development, We used to get the use cases where data retrieved from REST API/Database in the form of Array/Object, so need to convert this to Object/Array. 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