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This article will explain in detail what is the use of concat () in JavaScript. The editor thinks it is very practical, so I share it with you as a reference. I hope you can get something after reading this article.

Concat ()

The concat () method is used to join two or more arrays. Method does not change the existing array, but returns a new array containing the values of the joined array.

Var str1 = [1, str1.concat 2, 3, 4, 5, 5, 6] var str2 = ['a str1.concat (str2)] / [1, 2, 3, 4, 5, 6, 'await,' baked, 'clocked,' dashed,'e'] this is the end of the article on "what is the use of concat () in JavaScript". I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, please share it for more people to see.

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