How to Format an Object of Array to a New One in JavaScript скачать в хорошем качестве

How to Format an Object of Array to a New One in JavaScript

Learn how to transform an object containing arrays into a new format using JavaScript, focusing on specific fields based on criteria like 'ABS'. --- This video is based on the question https://stackoverflow.com/q/62640993/ asked by the user 'James Bertaha' ( https://stackoverflow.com/u/13806589/ ) and on the answer https://stackoverflow.com/a/62641914/ provided by the user 'peter' ( https://stackoverflow.com/u/2904678/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions. Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: how to format an object of array to a new one Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/l... The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license. If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com. --- How to Format an Object of Array to a New One in JavaScript: A Complete Guide If you're diving into JavaScript and working with complex data structures, you may often find yourself needing to restructure your data. One common task is transforming an object with arrays into a new format based on certain criteria. In this post, we'll break down a situation where you need to filter and format an object based on specific naming conventions, using the term "ABS" as our criteria. Understanding the Problem Let’s start with an example. Consider the following object structure that is defined as beforeData: [[See Video to Reveal this Text or Code Snippet]] From the beforeData, we want to create a new object AfterData that only includes entries where the funcName includes "ABS". The goal is to transform the data into this structure: [[See Video to Reveal this Text or Code Snippet]] Breaking Down the Solution To achieve this transformation, we will follow these steps: Step 1: Extract Values First, we need to extract the values from our object and flatten them into a single array. In JavaScript, we can easily achieve this using Object.values() combined with flat(). Step 2: Filter Based on Criteria Next, we will filter this flattened array to keep only the objects where the funcName contains the substring 'ABS'. We'll utilize filter() for this. Step 3: Map to New Structure Finally, we will map the filtered results to the desired format, which includes renaming and restructuring each object. Final Code Implementation Here’s how the final code implementation looks: [[See Video to Reveal this Text or Code Snippet]] Explanation of the Code Identify Function: The function isABS checks if the funcName contains the term "ABS". Extracting and Flattening: We use Object.values(beforeData).flat() to break out all the entries from the different seasons into a single array. Mapping Entries: We then map this array to create a new object with only the relevant fields: link and name. Filtering: Finally, we apply our filter to keep only those objects where the link matches our criteria. Conclusion Filtering and formatting objects in JavaScript may seem complex at first, but by breaking the process down into smaller steps, you can achieve your desired structure with clarity. Practice this technique with various criteria and data formats, and soon you’ll find it an easy task. If you have questions or run into any challenges while implementing this technique, feel free to ask for help in the comments below!