How does JavaScript verify whether it is the postal code of Chinese mainland?
Editor to share with you how to check whether JavaScript is Chinese mainland postal code, I believe most people do not know much about it, so share this article for your reference, I hope you can learn a lot after reading this article, let's go to understand it!
Verify whether it is the postal code of Chinese mainland.
Parameter value is a number or string
Verification rules:
A total of 6 digits and cannot start with 0
Function isPostCode (value) {
Return / ^ [1-9] [0-9] {5} $/ .test (value.toString ())
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.
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