JSON (JavaScript Object Notation) is a lightweight data-interchange format. May 10, 2014 · The JSON Spirit source code is available as a Microsoft Visual Studio 2005 C++ "solution". I did however have had explicitly choose a direction due to the multiple ways I could accomplish this. React Native components are written in. multiMerge' (React-native-asyncstorage) react native :undefined is not an object (evaluating '_this2. React Native- Building a Minimalist Weather App using Expo XDE By Aman Mittal React Native is a great framework to develop cross-platform mobile applications for the platforms iOS and Android. Jan 20, 2019 · Now if we talk about a JSON Array then it would be inside square braces [ JSON array ]. Jul 10, 2010 · Parsing a large JSON file efficiently and easily – By: Bruno Dirkx, Team Leader Data Science, NGDATA When parsing a JSON file, or an XML file for that matter, you have two options. This means that state can be updated in the future while props cannot be updated. To make an Image gallery in React Native we have a number of options available and we are using one of them in this example. October 4, 2016. JSON is one of the widely used data-interchange format as it is a lightweight data-interchange format and language independent and it started to slowly replace the XML format. filter(), map() and forEach() all call a callback with every value of the array. But, first, we need to install the react-native-paper package as shown in the code snippet below: yarn add react-native. Data will come from the Random User Generator API and React Native Elements will be used for the interface. Get JSON data from HTTP in React Native. How to Create a News Reader With React Native: Web Page Component In this tutorial, we'll be creating a news reader app with React Native. The map function simply transforms one array into another array. written April 18, 2015 in guide, javascript, jsx, react. Then we store the values in our apps state. JSON is used to transmit data between a server and a browser. The home of JSON Schema. JSON (JavaScript Object Notation) is a lightweight data-interchange format. JSON encodes data using a subset of the object literals of JavaScript. I have a URL that gives me some JSON data, and by using Volley I will get that data, and I will also parse it. Because of this similarity, a JavaScript program can easily convert JSON data into native JavaScript objects. Angular is a platform for building mobile and desktop web applications. let’s see how to use the file that is copied on above with react-native-fs. How to Submit Forms and Save Data with React. Dec 04, 2019 · Here, we are going to simply fetch data from the WordPress API and display the data on the Home screen as FlatList. Dec 05, 2017 · React Native JSON Viewer Component, based on react-json-tree - Dean177/react-native-json-tree. Nov 21, 2014 · Join a community of over 2. list should help you here, though I'm a bit rusty on my Java). The action of loading JSON data using the Fetch API is actually extremely simple. Now, FlatList only accepts an array of objects, and based on the docs it says VirtualizedList can be used for any data. React Native Emoji Input. Generally, it’s good idea to fetch data via AJAX request rather than embedding it in the web page. js we are mapping out all the data from the JSON file into a new Donation component for each entry. Table of Contents. Software Engineer. Our JSON tutorial will help you to learn JSON fundamentals, example, syntax, array, object, encode, decode, file, date and date format. js; create-react-native-app. Aug 08, 2016 · React Native for Web is intended to let you write a single app that runs in a browser using standard web technologies, or on iOS and Android as a real native mobile app. Why not use the same model for your own sites? Here's how to create a basic web service that provides an XML or JSON response using some PHP and MySQL. anyone can give me a hint. React Native- Building a Minimalist Weather App using Expo XDE By Aman Mittal React Native is a great framework to develop cross-platform mobile applications for the platforms iOS and Android. Square brackets are used to contain JSON arrays. Use this tool to convert JSON into CSV (Comma Separated Values) or Excel. log knows when to print one variable or another?. React Native, which enables native Android, iOS, and UWP development with React, was announced at Facebook's React Conf in February 2015 and open-sourced in March 2015. Oct 20, 2018 · A simple picker component with checkbox list for React-Native. Nov 13, 2015 · If a list needs 50+ of these items, with server-side templating we’d typically get the entire markup back from the Ajax call. React Native- Building a Minimalist Weather App using Expo XDE By Aman Mittal React Native is a great framework to develop cross-platform mobile applications for the platforms iOS and Android. _ CardComponent 만들기 Components 폴더 아래에 CardComponent. An ordered list of values. Dec 04, 2019 · This series intends to show how I build app to serve content from my WordPress blog by using react native. This post walks you through the process of creating a Todo App for iOS and Android devices with React Native, Realm. How to render nested json respose in React ?? now i know there is map option in React to render array but I get root level only and I should render children nodes. Now run this command to install react-native-localization inside of your project folder: rnpm install react-native-localization. One of the popular frameworks for cross-platform mobile application development is React Native. Sep 07, 2015 · The Facebook documentation for React Native has (or had at the time of writing this) a tutorial for getting movie data from a remote API. async fetchFeed. JSON (JavaScript Object Notation, which I pronounce "Jason" and you can pronounce however you like) is a text-based data format that's designed to be human-readable, lightweight, and easy to transmit between a server and a web client. But I wrote you the simple way here:. Construct React elements from JSON by mapping JSON definitions to React components. Trailing commas are not valid in JSON, so JSON. This post is about Android Volley Tutorial. JSON: chapter “Creating and parsing JSON” of “JavaScript for impatient programmers” Arbitrary Maps as JSON via Arrays of pairs # If a Map contains arbitrary (JSON-compatible) data, we can convert it to JSON by encoding it as an Array of key-value pairs (2-element Arrays). Here is the code: Related Links: Data Binding with jQuery, JSON, and JavaScript templates. To get a better understanding of this data format, we will view a few JSON format examples. Basic List Component. JSON - DataTypes - JSON format supports the following data types − Array. One of the popular frameworks for cross-platform mobile application development is React Native. Aug 07, 2017 · Fetching API Data with React. I recommend you read my newer tutorial, Command-Line Cartography, instead! In this tutorial, I’ll cover how to make a modest map from scratch using D3 and TopoJSON. 03/30/2017; 12 minutes to read +6; In this article. value A value to encode. Grouping Data. An array is an ordered sequence of zero or more values. Very similar to how HTML5 local storage functions with key-value pairs. I was listening to DotNetRocks on the way home, and they mentioned a fake data site… nothing special about that, but it’s useful to have at least 1 flagged that you can turn to when you need it. The solution is also available for demonstration. Get JSON data from HTTP in React Native. log and not allow it to store any data in the Xcode and also disable the automating updating of locations. The react-native-fusioncharts component allows you to easily add rich and interactive charts to any React Native project. Apr 04, 2011 · Convert XML to JSON with JavaScript Building Resilient Systems on AWS : Learn how to design and implement a resilient, highly available, fault-tolerant infrastructure on AWS. May 16, 2015 · The argument that current JSON data is stored as a text string in sql server is exactly the reason that you need to create a native JSON type. data is always null. js below render the following chapter structure in a react native ListView. JSON or JavaScript Object Notation, as you know is a simple easy to understand data format. Describe client data for use with links using JSON Schema. This way you can retrieve each element of JSONArray in Java. The PHP json_encode function translates the data passed to it to a JSON string which can then be output to a JavaScript variable. 이 포스팅은 아래 무료 동영상 강의를 참고하여 작성하였습니다. In the above-given array, we have only a list of strings. This code displays a bullet list of numbers between 1 and 5. And the fastest way to find something in array is to use indexOf method of simple arrat arrays like array of strings. Render anywhere (as long as it's DOM)! Since react-json-schema does not perform any rendering, the method in. There are tons of examples of how to use jq to extract data from JSON; this post shows how we use it to modify JSON. React Native Undefined is not an object (evaluating 'this. Schema mapping in copy activity. DataSource in React Native expects real arrays. stringify(data); console. 03/30/2017; 12 minutes to read +6; In this article. The solution is available for download. The first is an array of data used to create the list, typically an array of objects, and the second is the function that will take an individual element of the data array and render a component for it. Hey, web developers, In today’s AppDividend Tutorial, I have briefly described Array Foreach, Map, Filter, Reduce, Concat Methods in Javascript. Then, by using the key-value pair of each object inside the array, we created another object with name and id key-value pairs. What is JSON ? JSON stands for JavaScript Object Notation. The GitHub organization react-native-community maintains several of the most popular native modules. Awesome React Native: Building Android App with JavaScript Building mobile applications using JavaScript is in trend these days. The state is mutable while props are immutable. This lesson will show you how to do just that by mapping over the state. We are also going to style the user interface. Lists and Keys First, let’s review how you transform lists in JavaScript. While I don’t think the project is ready for production use yet, its potential success could mark a massive change in how large multi-platform applications are built. Let's look into example of getting JSON data with fetch() function. 8, MySQL supports a native JSON data type defined by RFC 7159 that enables efficient access to data in JSON (JavaScript Object Notation) documents. Aug 21, 2019 · Wern Ancheta introduces React Native, covering what React Native is, how to get started, what Expo is, how to set up a dev environment, and how to create an app with React Native. Nest Basics. Easy to understand and informative one, good job man! Recently I studied the question of generating JSON data. Aug 22, 2017 · Passing Data Between React Components. In the Maps SDK for Android expressions are JSON arrays, in which the first element is the expression operator and the other elements are the arguments to the expression. Note : This service is generally designed for geocoding static (known in advance) addresses for placement of application content on a map; this service is not designed to respond in real time to user input. How to Send and Receive JSON Data to and from the Server. See an example below. The data prop of FlatList is an array where each item is passed as a parameter to the renderItem function. doc: a JSON string providing documentation to the user of this schema (optional). Hooks are available in React version 16. Stack Overflow is amazing for Q&A: it has a reputation system, voting, the ability to mark a question as answered. One is using native Hive JSON function such as get_json_object and the other is to use a JSON Serde to parse JSON objects containing nested elements with lesser code. React Native has an embedded fetch API that is a high-level wrapper for working with HTTP requests. Data Fetching with React Hooks. Every webservice, from Facebook to. In this tutorial, we'll have a look at: JSONObject – similar to Java's native Map like object which stores unordered key-value pairs; JSONArray – an ordered sequence of values similar to Java's native Vector implementation. Convert XML to json. The first part covers setting up the backend, while the second part will cover building the frontend and running the app. Today’s article and video tutorial explains how to parse and render the json data using some of the best React Native packages. Oct 12, 2011 · You are creating an Android app and want to read data from a MySQL database and send data. It is easy for machines to parse and generate. To get a better understanding of this data format, we will view a few JSON format examples. Get unlimited access to the best stories on Medium — and support writers while you’re at it. Retrieving, publishing, and displaying live-updating geolocation data on a realtime map using React Native. In addition, we will introduce you to some of the most common PostgreSQL JSON operators and functions for handling JSON data. Here, in this article I’ll show you how to convert JSON data to an HTML table dynamically using JavaScript. It explains how to make ajax calls using fetch. Apr 12, 2016 · This makes React Native even easier for web developers to pick up. On Android, AsyncStorage will use SQLite based on what is available. JSON (JavaScript Object Notation, which I pronounce "Jason" and you can pronounce however you like) is a text-based data format that's designed to be human-readable, lightweight, and easy to transmit between a server and a web client. We'll likely find an npm package for common use cases such as taking photos, playing videos, and displaying maps. StoryMapJS for Technical Users. In particular, case-sensitive column names should be surrounded with double quotes. Aug 07, 2019 · Head over to example code: custom_column_table. Have two similar but different methods of accessing json data within the repo linked below. map or Object. If you're new to React Native, Realm or CSS Flexbox, it'd be best to walk your way through: Getting Started React Native Getting Started Realm React Native Layout with. Sending data as key-value pair using fetch polyfill in react-native How can I use react-native with php with fetch return data is always null. Nikolai asked "I'm curious how to make a basic audio player in React Native?A way to play from a remote location", so here we are: Build a React Native Music App tutorial! Our app loads as a list of music genres. In computer science, an associative array, map, symbol table, or dictionary is an abstract data type composed of a collection of (key, value) pairs, such that each possible key appears at most once in the collection. One is using native Hive JSON function such as get_json_object and the other is to use a JSON Serde to parse JSON objects containing nested elements with lesser code. slice() them first before passing to list views. 8, MySQL supports a native JSON data type defined by RFC 7159 that enables efficient access to data in JSON (JavaScript Object Notation) documents. The JSON data type provides these advantages over storing JSON-format strings in a string column:. Rendering an Array of Data with map() and JSX. let’s see how to use the file that is copied on above with react-native-fs. The format of the JSON map should generally match that returned by a SELECT JSON statement on the same table. I have a URL that gives me some JSON data, and by using Volley I will get that data, and I will also parse it. Because of this similarity, a JavaScript program can easily convert JSON data into native JavaScript objects. Sep 28, 2016 · I have a JSON array like this. As of MySQL 5. It is easy to parse JSON data and generate graph accordingly. x) released. By default it uses the class property in the json data in order to map the untyped generic json data into a specific Java type. Sep 15, 2017 · This tutorial is the second part of JSON ListView with single Item From MySQL database Tutorial. Nov 21, 2014 · Join a community of over 2. There's a lot going on around the React Native ListView and its performances, including in the official committee. data object. Alex Tatiyants says:. Our JSON tutorial will help you to learn JSON fundamentals, example, syntax, array, object, encode, decode, file, date and date format. The CData API Server enables you to generate REST APIs for 80+ data sources, including both on-premises and cloud-based databases. Generally it’s a good idea to fetch data via ajax rather than embedding in the web page. Using JWTs to authenticate your React Native app will help it to be both secure and easy to integrate with a variety of services. Pingback: Build a List of Pets for Adoption App with React Native - Part 2 | Rational App Development() Doug Sheridan I'm getting 'undefined is not an object (evaluating 'data. This JSON formatted file is responsible for describing aspects of your app. The key to creating buttons in React Native is this class called "TouchableHighlight," which gives us. Try this project on your phone! Use Expo's online editor to make changes and save your own copy. Nov 15, 2017 · React Native Create Picker Spinner Using Dynamic JSON MySQL Data admin November 15, 2017 November 15, 2017 React Native In our previous tutorial Simple Picker in React Native we have created Picker using static elements but this tutorial is the advanced part of that tutorial. map is another array. Jordan Schreuder. Then, do either of the following: a) (React Native 0. Jan 22, 2019 · by Vikrant Negi How to build React Native charts with dynamic tooltips Area Chart with tappable tooltipCreating charts, be it on the web or on mobile apps, has always been an interesting and challenging task especially in React Native. json, with dependencies on react, react-native and @mapbox/react-native-mapbox-gl. The key to this is the jQuery. Now the library is installed. React Native is based on the same core concepts as ReactJS, giving you, the developer, the power to compose a cross-platform mobile UI by writing JavaScript components. We can refactor the previous example into a component that accepts an array of numbers and outputs a list of elements. Now run this command to install react-native-localization inside of your project folder: rnpm install react-native-localization. How should I initialize my state "airportStatus" so that i can assign the response. Dec 11, 2018 · The same is true for JSON, except in JavaScript: the JSON. css file, namely, the buttons aren't the ugly default button that the browser gives you. A JSON Array is simply a JavaScript Array where each element is an Object, and each Object have the same keys. How To Use ES6 Arrow Functions With React Native JavaScript , Native , React When producing React Native applications, you’ll often need to iterate over data to render components, where you’ll need to pass a function as a property for later execution. May 27, 2019 · Like for the other mobile app ideas, you can get started with static mock JSON data, where the recipes list along with the title, description, the time required are hardcoded in the React Native code (as arrays, lists or sets). Lets write a separate function for table data and calling it in our render method. You will also learn how to use callouts to add a search box to a map. Join the community of millions of developers who build compelling user interfaces with Angular. Try this project on your phone! Use Expo's online editor to make changes and save your own copy. data to that state. Curly braces are used to contain objects. log knows when to print one variable or another?. Adding Authentication to Your React Native App Using JSON Web Tokens We're going to look at getting started with a very simple React Native app and the use of JSON Web Tokens to provide. JSON (JavaScript Object Notation) is a lightweight data-interchange format. It is based on a subset of the JavaScript Programming Language Standard ECMA-262 3rd Edition - December 1999. Use this tool to convert JSON into CSV (Comma Separated Values) or Excel. Full source code is available on. How to Create a News Reader With React Native: Web Page Component In this tutorial, we'll be creating a news reader app with React Native. getAllKeys((err, keys) => { AsyncStorage. Oct 31, 2016 · This tutorial covers controlled form components, and best practices like immutability and unidirectional data flow. reactjs,react-native. Jul 10, 2010 · Parsing a large JSON file efficiently and easily – By: Bruno Dirkx, Team Leader Data Science, NGDATA When parsing a JSON file, or an XML file for that matter, you have two options. Internal state is not preserved when content scrolls out of the render window. map is another array. Today, we will show you how to bind the jQuery Grid, called jqxGrid to a JSON data. Very similar to how HTML5 local storage functions with key-value pairs. Frameworks like Ionic , PhoneGap and Sencha Touch provide the ability to develop apps using basic knowledge of HTML, CSS and JavaScript. data to that state. An API is basically a set of data, often in JSON format with specified endpoints. The table constructed isn’t the flutter’s native DataTable. Most of the time, JSON. Once you finalize your design components and UI, you can start off with Firebase or other databases as your backend. In this post I show how JSON date serialization works, a few approaches how you can manage dates and how to automate the process of converting JSON dates to 'real' dates more easily. The easiest method for indexing JSON documents is to use a wizard in the Azure portal. React Native has an embedded fetch API that is a high-level wrapper for working with HTTP requests. parse command. I tried using react-native-share-extension but it is only showing the extension in the Safari browser. This post walks you through the process of creating a Todo App for iOS and Android devices with React Native, Realm. data); at line 22 gives logs the data. If you are interested in connected to a web. In this tutorial, we'll have a look at: JSONObject – similar to Java's native Map like object which stores unordered key-value pairs; JSONArray – an ordered sequence of values similar to Java's native Vector implementation. JSON or JavaScript Object Notation, as you know is a simple easy to understand data format. Here, in this article I’ll show you how to convert JSON data to an HTML table dynamically using JavaScript. Once you finalize your design components and UI, you can start off with Firebase or other databases as your backend. The map function simply transforms one array into another array. map or Object. GitHub Gist: instantly share code, notes, and snippets. Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. {"widget": { "debug": "on", "window": { "title": "Sample Konfabulator Widget", "name": "main_window", "width": 500, "height": 500 }, "image": { "src": "Images/Sun. It's pretty straightforward and easy to use. can be applied on any JSON Array as well. JSON is an open standard format that consists of key-value pairs. May 24, 2016 · Storing JSON data in React with setState. nest functionality to produce these groupings with a minimal amount of code. mobx-react provides its explicit PropTypes for observable data structures. This works quite well for JSON generated from flexjson. If this were a completely native app, I would be done. The key to creating buttons in React Native is this class called "TouchableHighlight," which gives us. And inside the braces, we can have all the items that we want on the JSON array. If you haven’t. Aug 10, 2017 · Syntax of JSON. We will use Retrofit library for making API call. but at line 21 it doesn't assign to the airportStatus state. Aug 22, 2017 • Rohan Paul. Here, in this article I’ll show you how to convert JSON data to an HTML table dynamically using JavaScript. value A value to encode. Oct 21, 2014 · We parse the JSON data and then call React. Dec 17, 2017 · The array’s inbuilt function ArrayName. React Native JSON Parsing and Helper Functions - Tutorial Part 2. anyone can give me a hint. map() method applies a function to each item in an array or object and maps the results into a new array. JavaScript doesn't have a date literal, and for this reason JSON serializes dates as strings rather than real JavaScript dates. It allows storing simple sets of data as text or serialized JSON objects. I’ll use RN(React Native) project that applied below list. Getting JSON. Tour Comece aqui para obter uma visão geral rápida do site Central de ajuda Respostas detalhadas a qualquer pergunta que você tiver Meta Discutir o funcionamento e as políticas deste site Sobre Nós Saiba mais sobre a empresa Stack Overflow Negócios Saiba mais sobre a contratação de. Basic List Component. Quick and easy if you have an Android and the Expo. Because of this similarity, a JavaScript program can easily convert JSON data into native JavaScript objects. The [GMSServices provideAPIKey] should be the first call of the method. The simplest way of installing this dependency is by using rnmp (React Native Package Manager). How to render nested json respose in React ?? now i know there is map option in React to render array but I get root level only and I should render children nodes. the data is a single object. css file, namely, the buttons aren't the ugly default button that the browser gives you. User Submitted Data Magic Quotes Hiding PHP Keeping Current Features HTTP authentication with PHP Cookies Sessions Dealing with XForms Handling file uploads Using remote files Connection handling Persistent Database Connections Safe Mode Command line usage Garbage Collection DTrace Dynamic Tracing Function Reference Affecting PHP's Behaviour. renderComponent. In this tutorial, we will learn how to parse JSON Objects and JSON Arrays in Android using Kotlin. Sep 22, 2015 · Hey guys, welcome to Simplified Coding. The readers and writers produced by the JsonReaderWriterFactory provide an XML API over JavaScript Object Notation (JSON) content. At the top of the file we import React and a bunch of React Native components. Saving Data In Your React Native Mobile Application React Native works pretty much only for iOS, so you’re going to need a Mac in order to proceed with what is in this article. In addition, we will introduce you to some of the most common PostgreSQL JSON operators and functions for handling JSON data. Understanding how JSX is processed can be slightly tricky to understand. This article should clear. list should help you here, though I'm a bit rusty on my Java). setState not working. $ react-native install mobx $ react-native install mobx-react $ react-native install babel-preset-react-native-stage-0 I recommend installing libraries through react-native install. CSS-like selectors for JSON. Mar 24, 2019 · For Table Data Now we want to print out students data in the Dom. 0 on GitHub (npm) Changelog Welcome to the January 2019 release of React Native. Each JSON object must be on a separate line in the file. In the article: “Getting Started with the Mapbox Maps SDK for React Native,” I covered the absolute basics needed to get a MapBox map to render in your React Native application. Nov 19, 2019 · v0. org Let's start. If you want to have fixed footer in bottom of view controller which will be not scroll with the table then you can not use UITableViewContro. Dynamically Add Values in String Array List in React Native on button click admin December 17, 2017 December 17, 2017 React Native The array's inbuilt function ArrayName. Once you finalize your design components and UI, you can start off with Firebase or other databases as your backend. You can find the full source code from GitHub. D3 allows you to bind arbitrary data to a Document Object Model (DOM), and then apply data-driven transformations to the document. Since, my blog is talking about react-native, the series and the articles are interconnected. React Native has an embedded fetch API that is a high-level wrapper for working with HTTP requests. stringify() JSON. list should help you here, though I'm a bit rusty on my Java). Its syntax is derived from JavaScript -- hence the name -- but it. I'm in early days of learning react-native. First, I wrapped my function inside a class, and made sure it was callable from Objective-C. For the first project I worked on, I used a plain react native set-up without Expo. React Native Iterate Array Of Objects. Instead I could pull out the three or four values I needed from the API and directly store it on my business entities that needed to receive the data - no need to map the entire Maps API structure. The default sort order is ascending, built upon converting the elements into strings, then comparing their sequences of UTF-16 code units values. Apr 26, 2017 · React Native resources; React, Redux, and native Android resources; Introduction. The readers and writers produced by the JsonReaderWriterFactory provide an XML API over JavaScript Object Notation (JSON) content. Since, my blog is talking about react-native, the series and the articles are interconnected. It allows storing simple sets of data as text or serialized JSON objects. I’ll use RN(React Native) project that applied below list. async fetchFeed. Software Engineer. If this were a completely native app, I would be done. but at line 21 it doesn't assign to the airportStatus state. push(“Put Your Value Here”) is used to programmatically add values in string array. Apr 26, 2017 · React Native resources; React, Redux, and native Android resources; Introduction. The PHP json_encode function translates the data passed to it to a JSON string which can then be output to a JavaScript variable. In this case it’s one record; it can also be an array. To make an Image gallery in React Native we have a number of options available and we are using one of them in this example. I dedicate this article only for these methods because, in Pure Functional Programming , this kind of method is required to perform some operations on an Array. Full source code is available on. The data object below contains an array of objects, each containing “id”, “parentid”, and “text” members. filter(), map() and forEach() all call a callback with every value of the array. Jordan Schreuder. JSON - DataTypes - JSON format supports the following data types − Array. On April 18, 2017, Facebook announced React Fiber , a new core algorithm of React library for building user interfaces. Then we store the values in our apps state. The react-native-fusioncharts component allows you to easily add rich and interactive charts to any React Native project. Sep 22, 2015 · Hey guys, welcome to Simplified Coding. If this were a completely native app, I would be done. jq is its own programming language. Here, in this article I’ll show you how to convert JSON data to an HTML table dynamically using JavaScript. data object. data by Axios keeps returning null. Aug 22, 2017 • Rohan Paul. This examples helps to understand how to fetch the JSON file directly in component and parse only a specific section data. Then, by using the key-value pair of each object inside the array, we created another object with name and id key-value pairs. But it's faster and smaller. Mar 08, 2018 · I’m working with some JSON data in a React app using Axios and I am having trouble iterating through an object nested in an array. Angular is a platform for building mobile and desktop web applications. I dedicate this article only for these methods because, in Pure Functional Programming , this kind of method is required to perform some operations on an Array.