Method getAlphanumericCode

src/core/qrcode/encoder/Encoder.ts:200–205

* @return the code point of the table used in alphanumeric mode or * -1 if there is no corresponding code in the table.

(code: number /*int*/)

     *  -1 if there is no corresponding code in the table.
     */
    public static getAlphanumericCode(code: number /*int*/): number /*int*/ {
        if (code < Encoder.ALPHANUMERIC_TABLE.length) {
            return Encoder.ALPHANUMERIC_TABLE[code];
        }
        return -1;
    }

    // public static chooseMode(content: string): Mode {
    //   return chooseMode(content, null);