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This article mainly shows you "how to judge whether JavaScript is a digital type". The content is simple and clear. I hope it can help you solve your doubts. Let me lead you to study and learn this article "JavaScript how to judge whether it is a digital type".

Determine whether it is of numeric type function isDigit (value) {

Var patrn = / ^ [0-9] * $/

If (patrn.exec (value) = = null | | value = = "") {

Return false

} else {

Return true

}

What language is javascript? javascript is a dynamically typed, weakly typed language, based on object and event driven, relatively secure and widely used in client-side web page development. It is also a widely used scripting language for client-side Web development. 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.

The above is all the contents of the article "how to judge whether JavaScript is a digital type or not". Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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