WeChat Mini Program QR Code Generation Tool weapp-qrcode Detailed Explanation

const app = getApp();
const QR = require('../../lib/weapp-qrcode.js'); // Import weapp-qrcode

Page({
    /**
     * Initial data of the page */
    data: {
        QrCodeURL:'', // QR code image path},
    // QR code drawImg: function (){
        let that = this,
            params = "https://www.baidu.com/"; // QR code parameters var imgData = QR.drawImg(params, {
            typeNumber: 4, // density errorCorrectLevel: 'L', // error correction level size: 800, // white border })
        
        this.setData({
            qrcodeURL: imgData
        })
    },
})

<view style="text-align:center;">
    <image style="width:500rpx;height:500rpx;" src="{{ qrcodeURL }}" ></image>
</view>