Javascript 修改离子条形码扫描仪插件以读取数字

我使用了爱奥尼亚框架的插件来读取条形码，效果很好。现在我的问题是条形码库是否可以修改为自动扫描数字而不是条形码

barcodescanner.js脚本如下所示

...
function BarcodeScanner() {

/**
 * Encoding constants.
 *
 * @type Object
 */
this.Encode = {
    TEXT_TYPE: "TEXT_TYPE",
    EMAIL_TYPE: "EMAIL_TYPE",
    PHONE_TYPE: "PHONE_TYPE",
    SMS_TYPE: "SMS_TYPE"
    //  CONTACT_TYPE: "CONTACT_TYPE",  // TODO:  not implemented, requires passing a Bundle class from Javascript to Java
    //  LOCATION_TYPE: "LOCATION_TYPE" // TODO:  not implemented, requires passing a Bundle class from Javascript to Java
};

/**
 * Barcode format constants, defined in ZXing library.
 *
 * @type Object
 */
this.format = {
    "all_1D": 61918,
    "aztec": 1,
    "codabar": 2,
    "code_128": 16,
    "code_39": 4,
    "code_93": 8,
    "data_MATRIX": 32,
    "ean_13": 128,
    "ean_8": 64,
    "itf": 256,
    "maxicode": 512,
    "msi": 131072,
    "pdf_417": 1024,
    "plessey": 262144,
    "qr_CODE": 2048,
    "rss_14": 4096,
    "rss_EXPANDED": 8192,
    "upc_A": 16384,
    "upc_E": 32768,
    "upc_EAN_EXTENSION": 65536
}; //More code after

任何帮助都将不胜感激