Скачать или смотреть How to Match Array Elements with Multidimensional Objects in JavaScript

Discover how to efficiently `match values` from a one-dimensional array to objects within a multidimensional array in JavaScript, and return the necessary coordinates.
---
This video is based on the question https://stackoverflow.com/q/70126297/ asked by the user 'ELMER RONIER HUITZ' ( https://stackoverflow.com/u/14443396/ ) and on the answer https://stackoverflow.com/a/70126987/ provided by the user 'Nitheesh' ( https://stackoverflow.com/u/6099327/ ) 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: Foreach Array Element Search for values in multidimension 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.
---
How to Match Array Elements with Multidimensional Objects in JavaScript

When working with JavaScript, you may oftentimes run into scenarios where you need to match the elements of one array with certain properties of objects contained within another multidimensional array. This task can be particularly useful for filtering datasets, and can also be applied in various practical applications from mapping elements to data visualization.

In this guide, we will address a specific problem: how to match each element of a simple array to a set of coordinates (x, y) in a multidimensional array based on a specific property.

The Problem Statement

Imagine you have a one-dimensional array representing certain values, and a multidimensional array of objects where each object contains multiple properties, including a key property w. Our task is to match each element (in this case, the values in the simple array) with corresponding objects in the multidimensional array where the key property matches, and to return a new structured array containing only relevant x and y pairs.

Here's a simplified representation of the arrays:

[[See Video to Reveal this Text or Code Snippet]]

From these arrays, you want to derive an output structure like this:

[[See Video to Reveal this Text or Code Snippet]]

The Solution Overview

To solve this problem, we will implement a strategy involving two main steps:

Use the map function to find corresponding elements in array2 for each element in array1.

Reorganize the matched coordinates into the desired structure.

Step 1: Finding Matches Using map and find

We will utilize the map method on array1 to iterate over each of its elements, and for each element, we will use the find method on array2 to locate the object that contains a matching w property.

Here's the code snippet to achieve this:

[[See Video to Reveal this Text or Code Snippet]]

Here, tempArray will hold the matched objects from array2 corresponding to each element in array1.

Step 2: Structuring the Final Output

Philosophically moving forward, we still need to extract the x and y properties from the objects in tempArray and format them into the desired output structure. We will do this by iterating over tempArray and creating a new structure with x and y.

The complete implementation looks like the following:

[[See Video to Reveal this Text or Code Snippet]]

Conclusion

By breaking down the problems into manageable steps and employing JavaScript’s powerful array methods, we successfully matched elements from a one-dimensional array to properties of objects in a multidimensional array, resulting in a clean and organized output.

Feel free to test the code provided above or modify it according to your needs. Reusing these principles can make it easier to operate with complex data structures in JavaScript, allowing for more effective and elegant data manipulation in your projects.

For interactive examples and demonstrations, consider checking out online JavaScript fiddle tools where you can play around with these snippets in real-time.