In that case, use #3: dictionary of key / value pairs. Getting key/value pair from JSON object and getting variable name and ... // Below is the desired JSON output that we wanted to have. ES6 Way of Creating Object with Dynamic Keys - SamanthaMing.com ES6 defines 'ComputedPropertyName' as part of the grammar for object literals, which helps use a variable for a key. You can see that the above-highlighted values are updated in the object. Dynamically creating keys in JavaScript associative array Woohoo! How do I create a dynamic key for a key/value pair in JavaScript? For example, Example let a = { name: 'Ayush' }; let key = 'age'; // Add the non existing key a[key] = 35; console.log(a) Output. Object.values (obj) - returns an array of values. Whereas $ () is used to retrieve dynamic value. Oh, I see! You can create an object through two different ways, one is to declare it and initialize it using the new Object() method and the second one is the shorthand way by simply declaring and assigning some key-value pairs to it. obj ['name'] = 'John'. const key = "Codez" const obj = { 'hello': 'guys', } obj[key] = "Up" console.log(obj) 2. How to add key/value pair to a JavaScript object? Finally I got the alert like this, Key: a value:10 Key: b value:20 Key: c value:30 Key: d value:50 During this workaround I got one more idea, using this same way I got all the variable name and corresponding value from JavaScript . We also created getters and setters methods to set values for each instance of this class. Mule 4 - How to Pass Dynamic Values for "keys" in Key-Value Pair How to Add a Key-Value Pair Using Bracket Notation in JavaScript Just like dot notation, you can use bracket notation to add a key-value pair to an object. create object with dynamic keys in typescript 7exampleObject.domain = "infinitbility.com"; User-590375999 posted Hi Brando ZWZ, I have tried you code but not working at my end, i can . for(let key in obj){ console.log(obj[key]); } //"Prashant Yadav" //"learnersbucket.com" //24 //["writing", "reading . Implement Key Value Pair in Java | Delft Stack Add a key value pair to dictionary in Python; JavaScript Convert an array to JSON; Finding matching pair from an array in JavaScript; JavaScript - convert array with null value to string; JavaScript: How to Create an Object from Key-Value Pairs; Get max value per key in a JavaScript array; How . In the below code we will see how to access these dictionary values. Example 1: This example adds {"nextFavColor" : "red"} to the GFG_p object by using dot notation. Now, let's move to built-in functions and methods to push key-value pairs into arr2. The value associated with the property. Add dynamic key, value pairs to JavaScript array or hash table The Flow should handle every JSON-array it will get, same as the existing "Create HTML table"-connector is doing already.