Question

我想得到的结果是：E1，E5。这可能在jQuery甚至是PHP中吗？

更新：

我想将它应用于我的json_encoded数据。

var array = $('#lot_numbers').val(details.lot_number);

的数据为 E1,1,2,3,4,5，E5

$('#end_unit').change(function() {
    if($(this).val().length == 0) {
        $('#display_lot_numbers').hide('slow');
    } else {

        if($(this).val() == 'Yes') {

        var allotment_code = $('#allotment_code').val();

        $.post(base_url('ajax/ajaxGetUnits.php'), {
            allotment_code:allotment_code
        },
        function(data, status) {

            var details = JSON.parse(data);
            $('#display_lot_numbers').show('slow');

            var array = $('#lot_numbers').val(details.lot_number);

            var nonnumbers = $.grep(array.split(","), function(n, i) {
                return isNaN(n);
            }).join(",");

            console.log(nonnumbers);
        });

        }
    }
})

Answer 1

试试这个：

首先拆分字符串并创建一个数组，然后使用grep方法通过isNaN函数获取非数字。

var lot_numbers = 'E1,1,2,3,4,5,E5';
var nonnumbers = $.grep(lot_numbers.split(","), function(n, i) {
  return isNaN(n);
}).join(",");

console.log(nonnumbers);

<script src="https://code.jquery.com/jquery-3.2.1.min.js" integrity="sha256-hwg4gsxgFZhOsEEamdOYGBf13FyQuiTwlAQgxVSNgt4=" crossorigin="anonymous"></script>

Answer 2

甚至没有使用jQuery - 只是常规的js：

    var lot_numbers = 'E1,1,2,3,4,5,E5';
    var arr = lot_numbers.split(",");
    var result = arr.filter(function(i) {
       return i.match(/[a-z]/i); 
    });
    return result.join();

Answer 3

尝试这个

var lot_numbers = 'E1,1,2,3,4,5,E5';
var arr = lot_numbers.split(',');
var patt = /[a-zA-Z]\d/;
for (var i = 0; i < arr.length; i++) {
  if (patt.test(arr[i])) {
    alert(arr[i]);
  }
}

Answer 4

Check below solution.

＆＃13;

var lot_numbers = 'E1,1,2,3,4,5,E5';
var array=lot_numbers.split(",");

for(var i = 0; i < array.length; i++) {
   // Check number or not
   if(isNaN(array[i]))
	   alert(array[i]);
}

＆＃13;

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

＆＃13;

Answer 5

不需要jQuery，普通的javascript会有所帮助。

var lot_numbers = 'E1,1,2,3,4,5,E5';
var arr = lot_numbers.split(",");

var alphanum = arr.filter(function(x) {
  return isNaN(x);
}).join();

console.log(alphanum);   // "E1,E5"

jQuery：获取或提醒包含字母的数字

5 个答案: