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This article mainly introduces how to use regular expressions in JavaScript to achieve array flattening, with a certain reference value, interested friends can refer to, I hope you can learn a lot after reading this article, the following let Xiaobian take you to understand.

Array flattening refers to changing a multi-dimensional array into an one-dimensional array.

Const arr = [1, [2, [3, [4, 5]], 6]; / / = > [1, 2, 3, 4, 5, 6] regular improved version const res3 = JSON.parse ('['+ JSON.stringify (arr). Replace (/\ [|\] / g,') +']) What is JavaScript JS is the abbreviation of JavaScript, it is a literal scripting language, its interpreter is called JavaScript engine, is a part of the browser, mainly used for web development, can add a variety of dynamic effects to the website, make the web page more beautiful.

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