我正在构建付款表格并希望自动选择第一个 4 位数字的信用卡类型我在 Visa Master AMEX Discover 上有有效范围
这里是 Discover one 的一个例子
validRanges":["6282","6283","6284","6285","67","66","6287","6286","6288","64","65","63888","6011","622","624","625","626"]
我如何构建自动选择发现卡并出现发现图标并消除其他图标的输入
有人这样想