Transforming a 1D Array into a 2D Array in JavaScript скачать в хорошем качестве

Transforming a 1D Array into a 2D Array in JavaScript

Discover how to effortlessly convert a `1D` array into a `2D` array in JavaScript, with tips, code snippets, and a clear explanation of the process. --- This video is based on the question https://stackoverflow.com/q/67286351/ asked by the user 'learningjavascript' ( https://stackoverflow.com/u/15777635/ ) and on the answer https://stackoverflow.com/a/67287187/ provided by the user 'learningjavascript' ( https://stackoverflow.com/u/15777635/ ) 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: Convert 1D array into 2D array JavaScript 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. --- Transforming a 1D Array into a 2D Array in JavaScript: A Step-by-Step Guide When working with arrays in JavaScript, you might encounter a scenario where you need to convert a one-dimensional array (1D) into a two-dimensional array (2D). This can be particularly useful for organizing data into rows and columns, making it easier to manipulate and display. In this guide, we’ll explore how to convert a 1D array into a 2D array formatted as 4 rows and 3 columns using JavaScript. We'll troubleshoot a common error that can occur during this process, ensuring you understand each step along the way. The Problem Let’s say you have a 1D array like this: [[See Video to Reveal this Text or Code Snippet]] The challenge is to convert this array into a 2D array with the following structure: [[See Video to Reveal this Text or Code Snippet]] While trying to implement this, you might notice that the result is only giving you the first numbers from the array. Let’s delve into the solution to understand how to achieve the desired outcome correctly. The Solution Follow these steps to correctly convert your 1D array to a 2D array: Step 1: Initialize the New 2D Array Begin by creating a new 2D array that will hold the converted values. You should specify the correct dimensions based on what you need: [[See Video to Reveal this Text or Code Snippet]] Step 2: Populate the 2D Array Next, you need to loop through the original 1D array and assign its values to the 2D array. Here’s where a small mistake is often made. The key is to calculate the correct index from the 1D array based on the current row and column: [[See Video to Reveal this Text or Code Snippet]] Example of the Complete Code Here’s what the complete code looks like: [[See Video to Reveal this Text or Code Snippet]] Conclusion Now you know how to convert a 1D array into a 2D array in JavaScript successfully! By ensuring that you calculate the correct index in the original array, you can effectively fill your new 2D array with the desired values. Key Takeaway The most common pitfall during this process is incorrect index calculation. By following the provided steps closely, you can avoid any confusion and confidently manage your data in 2D arrays. Happy coding!