其中str可以是以下格式中的任何一种: 555-555-5555 (555) 555 - 5555 (555) 555 - 5555 555 555 5555 5555555555 1 555 555 5555

函数电话检查（str） { var isphone = /^（1\s|1|）？（（\（\d{3}\））|\d{3}）（\-|\s）？（\d{3}）（\-|\s）？（\d{4}）$/.test（str）; 警报（电话）; } 电话检查（“1 555 555 5555”）;

这个函数运行得很好:

let isPhoneNumber = input => { try { let ISD_CODES = [93, 355, 213, 1684, 376, 244, 1264, 672, 1268, 54, 374, 297, 61, 43, 994, 1242, 973, 880, 1246, 375, 32, 501, 229, 1441, 975, 591, 387, 267, 55, 246, 1284, 673, 359, 226, 257, 855, 237, 1, 238, 1345, 236, 235, 56, 86, 61, 61, 57, 269, 682, 506, 385, 53, 599, 357, 420, 243, 45, 253, 1767, 1809, 1829, 1849, 670, 593, 20, 503, 240, 291, 372, 251, 500, 298, 679, 358, 33, 689, 241, 220, 995, 49, 233, 350, 30, 299, 1473, 1671, 502, 441481, 224, 245, 592, 509, 504, 852, 36, 354, 91, 62, 98, 964, 353, 441624, 972, 39, 225, 1876, 81, 441534, 962, 7, 254, 686, 383, 965, 996, 856, 371, 961, 266, 231, 218, 423, 370, 352, 853, 389, 261, 265, 60, 960, 223, 356, 692, 222, 230, 262, 52, 691, 373, 377, 976, 382, 1664, 212, 258, 95, 264, 674, 977, 31, 599, 687, 64, 505, 227, 234, 683, 850, 1670, 47, 968, 92, 680, 970, 507, 675, 595, 51, 63, 64, 48, 351, 1787, 1939, 974, 242, 262, 40, 7, 250, 590, 290, 1869, 1758, 590, 508, 1784, 685, 378, 239, 966, 221, 381, 248, 232, 65, 1721, 421, 386, 677, 252, 27, 82, 211, 34, 94, 249, 597, 47, 268, 46, 41, 963, 886, 992, 255, 66, 228, 690, 676, 1868, 216, 90, 993, 1649, 688, 1340, 256, 380, 971, 44, 1, 598, 998, 678, 379, 58, 84, 681, 212, 967, 260, 263], //extract numbers from string thenum = input.match(/[0-9]+/g).join(""), totalnums = thenum.length, last10Digits = parseInt(thenum) % 10000000000, ISDcode = thenum.substring(0, totalnums - 10); //phone numbers are generally of 8 to 16 digits if (totalnums >= 8 && totalnums <= 16) { if (ISDcode) { if (ISD_CODES.includes(parseInt(ISDcode))) { return true; } else { return false; } } else { return true; } } } catch (e) {} return false; } console.log(isPhoneNumber('91-9883208806'));

我不得不承认，核实电话号码是一项艰巨的任务。 至于这个具体的问题，我会改变正则表达式从

/^(()?\d{3}())?(-|\s)?\d{3}(-|\s)\d{4}$/

to

/^(()?\d{3}())?(-|\s)?\d{3}(-|\s)?\d{4}$/

因为唯一多余的元素是最后的破折号/空格。

如果你想找10个数字，那就忽略除数字-以外的所有数字

   return value.match(/\d/g).length===10;

如果你使用输入标签，这段代码将帮助你。这段代码是我自己写的，我认为这是很好的输入方式。但是你可以用你的格式来改变它。它将帮助用户纠正输入标签上的格式。

$("#phone").on('input', function() {  //this is use for every time input change.
        var inputValue = getInputValue(); //get value from input and make it usefull number
        var length = inputValue.length; //get lenth of input

        if (inputValue < 1000)
        {
            inputValue = '1('+inputValue;
        }else if (inputValue < 1000000) 
        {
            inputValue = '1('+ inputValue.substring(0, 3) + ')' + inputValue.substring(3, length);
        }else if (inputValue < 10000000000) 
        {
            inputValue = '1('+ inputValue.substring(0, 3) + ')' + inputValue.substring(3, 6) + '-' + inputValue.substring(6, length);
        }else
        {
            inputValue = '1('+ inputValue.substring(0, 3) + ')' + inputValue.substring(3, 6) + '-' + inputValue.substring(6, 10);
        }       
        $("#phone").val(inputValue); //correct value entered to your input.
        inputValue = getInputValue();//get value again, becuase it changed, this one using for changing color of input border
       if ((inputValue > 2000000000) && (inputValue < 9999999999))
      {
          $("#phone").css("border","black solid 1px");//if it is valid phone number than border will be black.
      }else
      {
          $("#phone").css("border","red solid 1px");//if it is invalid phone number than border will be red.
      }
  });

    function getInputValue() {
         var inputValue = $("#phone").val().replace(/\D/g,'');  //remove all non numeric character
        if (inputValue.charAt(0) == 1) // if first character is 1 than remove it.
        {
            var inputValue = inputValue.substring(1, inputValue.length);
        }
        return inputValue;
}

一个很简单的方法:

"9001234567".match(/^\d{10}$/g)