How to realize the function of QR Code scanning by jQuery

The knowledge of this article "jQuery how to achieve QR code scanning function" is not understood by most people, so the editor summarizes the following content, detailed content, clear steps, and has a certain reference value. I hope you can get something after reading this article. Let's take a look at this "jQuery how to achieve QR code scanning function" article.

QR code: using the concept of graphic analog binary 0,1 to achieve the function of storing a small amount of data, the general mobile browser parses the url data hidden in the QR code and automatically jumps. The common scanning landings of Alipay and Wechat make use of this principle.

Implementation of Jquery QR Code: jquery.qrcode.min.js plug-in

HTML body:

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Javascript operation code:

Var iBoth $("# bt") .click (function () {$("# count"). Text (+ + I); $("# code") .text ("") / / initialize the location of the QR code jQuery ('# code'). Qrcode ({render: "canvas", / / can also be replaced with table width: 100, height: 100, text: "http://www.baidu.com" / / the built-in content of the QR code, if the browser loads automatically in the form of URL);})

Effect:

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