Sep 16, 2024 · You can create a dictionary dynamically by defining an empty object and then adding key-value pairs using various methods. This article covers multiple approaches for …

Sep 12, 2024 · This guide will provide you with a detailed understanding of how to create, manipulate, and utilize dictionaries in JavaScript, including practical examples and best practices.

In modern JavaScript (ES6 /ES2015), one should use the Map data structure for a dictionary. The Map data structure in ES6 lets you use arbitrary values as keys.

Feb 25, 2025 · Learn how to use JavaScript dictionaries with Objects and Maps. Discover key differences, performance insights, and use cases with examples.

Dec 20, 2022 · A dictionary is a data structure that you can use to store data in your application. You can store data using a key-value pair, which allows you to look up and retrieve a specific …

Mar 11, 2022 · Discover how to create a JavaScript Dictionary effortlessly. Our concise guide provides step-by-step instructions for mastering dictionary creation in JavaScript.

Sep 5, 2015 · While there’s no “Dictionary” type in JavaScript, it’s actually really easy to create and use a dictionary object. The following steps show how to go about creating and populating …

Oct 31, 2023 · In this comprehensive guide, you‘ll learn all about using objects as dictionaries in JavaScript to store and access data for your applications. Before jumping into the specifics of …

Jul 19, 2025 · A WeakMap is a collection of key/value pairs whose keys must be objects or non-registered symbols, with values of any arbitrary JavaScript type, and which does not create …

Oct 9, 2024 · This article explores a common technical interview task: creating a dictionary data structure in JavaScript from scratch. We’ll implement a dictionary with add, get, and remove …