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This article mainly introduces JavaScript how to check whether the value is an array, the article is very detailed, has a certain reference value, interested friends must read it!

Check whether the value is an array

Const arr = [1, 2, 3]; console.log (typeof arr); / / object console.log (Array.isArray (arr)); / / what is the language javascript is a dynamically typed, weakly typed language, object-and event-driven, relatively secure and widely used in client-side web page development, as well as a widely used client-side Web development scripting language. It is mainly used to add dynamic functions to HTML web pages, and now JavaScript can also be used in web servers, such as Node.js.

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