How to Safely Concatenate Large Arrays in React Without Causing Memory Leaks?
I can't seem to get I'm performance testing and I can't seem to get Quick question that's been bugging me - I'm working on a React application where I need to concatenate two large arrays of objects (let's say each array can contain up to 100,000 items) to render them on the UI... While attempting to use the `concat` method to combine these arrays, I'm experiencing significant performance issues and occasional crashes, especially when the arrays are at their maximum size. Here's a simplified version of my code: ```javascript const array1 = new Array(100000).fill({ id: 1, name: 'Item 1' }); const array2 = new Array(100000).fill({ id: 2, name: 'Item 2' }); const combinedArray = array1.concat(array2); ``` After this operation, the browser becomes unresponsive, and I notice the following warning in the console: `Warning: Encountered two children with the same key, ...`. I suspect the way I’m filling the arrays is causing React to treat multiple objects as the same, resulting in this key duplication warning. I've tried using the spread operator as well, like this: ```javascript const combinedArray = [...array1, ...array2]; ``` However, the performance issues persist. Additionally, I'm worried about potential memory leaks when rendering such a large dataset. I've also considered using pagination or lazy loading to improve the user experience, but I'm not sure how I should implement that properly in my current setup. Is there a recommended approach to handle this scenario efficiently without overwhelming the browser’s memory? Any insights or best practices would be greatly appreciated! How would you solve this? I'm working on a web app that needs to handle this. What am I doing wrong? I'm on Linux using the latest version of Javascript. Could someone point me to the right documentation? What would be the recommended way to handle this? I'm working in a Debian environment. Thanks for any help you can provide!