How JavaScript merges or flattens arrays in arrays

Xiaobian to share with you how JavaScript merges or flattens the array in the array, I believe most people still do not know how, so share this article for your reference, I hope you have a lot of harvest after reading this article, let's go to understand it together!

Merge/flatten arrays in arrays

Array has a nice method called Array.flat, which requires a depth parameter indicating the depth of array nesting, the default value is 1. But if we don't know what to do with depth, we need to flatten it all out, just use Infinity as a parameter.

const arrays = [[10], 50, [100, [2000, 3000, [40000]]]]arrays.flat(Infinity)// [ 10, 50, 100, 2000, 3000, 40000 ] above is "How JavaScript Combines or Flattenes Arrays in Arrays" All of this, thank you for reading! I believe that everyone has a certain understanding, hope to share the content to help everyone, if you still want to learn more knowledge, welcome to pay attention to the industry information channel!