👀 Views: 6749 💬 Answers: 1 📅 Created: 2025-06-03

javascript arrays merge JavaScript

I'm working on a feature in a JavaScript application that requires merging multiple arrays of uneven lengths into one single array while maintaining the order of elements from original arrays... I'm currently working with an scenario where the merged array ends up containing undefined values for the shorter arrays. Here's what I've tried so far: ```javascript const array1 = [1, 2, 3]; const array2 = [4, 5]; const array3 = [6, 7, 8, 9]; const mergedArray = []; const maxLength = Math.max(array1.length, array2.length, array3.length); for (let i = 0; i < maxLength; i++) { mergedArray.push(array1[i], array2[i], array3[i]); } console.log(mergedArray); // Output: [1, 4, 6, 2, 5, 7, 3, undefined, 8, undefined, undefined, 9] ``` The merged array has `undefined` values where the shorter arrays don't have elements. I need a way to handle this more gracefully without leaving gaps in the merged result. Ideally, if an array is shorter, it should just skip adding `undefined` values. I've considered using a filtering method, but I'm not sure how to implement this efficiently. Is there a better approach or a library that can help with this? Any suggestions would be greatly appreciated!