--- title: "DAZ (@daz-codes) | Hashnode" description: "Developer who loves JavaScript, functional programming, state management and mathematics. Read the latest articles by DAZ on Hashnode." url: "https://hashnode.com/@daz-codes" --- @daz-codes # DAZ @daz-codes 路 Manchester, uk 路 Joined January 2022 Developer who loves JavaScript, functional programming, state management and mathematics [Website](https://daz4126.dev/) ### [Falling Back In Love With Ruby ...](https://daz4126.hashnode.dev/falling-back-in-love-with-ruby?utm_source=hashnode&utm_medium=feed) Ruby was the first language I learned to program properly in. I read the excellent book, "Learn to Program with Ruby" by Chris Pine (available free online btw ... https://pine.fm/LearnToProgram/) and loved how expressive the language was. Being able ... 2 min read 路 [daz4126.hashnode.dev](https://daz4126.hashnode.dev/falling-back-in-love-with-ruby?utm_source=hashnode&utm_medium=feed) [Apr 16, 2024](https://hashnode.com/posts/falling-back-in-love-with-ruby/661eb752fc135624d2f66543) ### [How to use Array.map to render a list of items in React](https://daz4126.hashnode.dev/how-to-use-arraymap-to-render-a-list-of-items-in-react?utm_source=hashnode&utm_medium=feed) One of the most common tasks for React developers is to render a list of data (e.g. users) onto a web page. And thanks to the the Array.map method this can be done in a simple and efficient way. In this article, you'll learn how JSX helps to make com... 13 min read 路 [daz4126.hashnode.dev](https://daz4126.hashnode.dev/how-to-use-arraymap-to-render-a-list-of-items-in-react?utm_source=hashnode&utm_medium=feed) [Dec 17, 2022](https://hashnode.com/posts/how-to-use-arraymap-to-render-a-list-of-items-in-react/639deac757b6675111854ea0) ### [How to use Array.filter to narrow down a list in React](https://daz4126.hashnode.dev/how-to-use-arrayfilter-to-narrow-down-a-list-in-react?utm_source=hashnode&utm_medium=feed) How do you filter lists of data based on some user input? This is easily done using the Array.filter method! How Does Array.filter Work? 馃 The Array.filter method takes an array of items and returns a completely new array that only contains the elem... 10 min read 路 [daz4126.hashnode.dev](https://daz4126.hashnode.dev/how-to-use-arrayfilter-to-narrow-down-a-list-in-react?utm_source=hashnode&utm_medium=feed) [Dec 17, 2022](https://hashnode.com/posts/how-to-use-arrayfilter-to-narrow-down-a-list-in-react/639de8cd719dd249722565bf) ### [Introducing Nanny State](https://daz4126.hashnode.dev/introducing-nanny-state?utm_source=hashnode&utm_medium=feed) Simple State Management for Vanilla JS 5 min read 路 [daz4126.hashnode.dev](https://daz4126.hashnode.dev/introducing-nanny-state?utm_source=hashnode&utm_medium=feed) [Feb 18, 2022](https://hashnode.com/posts/introducing-nanny-state/620f6cb7d589905b412920d5)