完全匹配的选项和optgroup [英] Matching exactly option and optgroup

问题描述

我有一个问题与下面的脚本时，选择的选项成为长:

选项很少的解决方案 http://jsfiddle.net/hsQjh/5/

问题较多的选项: http://jsfiddle.net/hsQjh/6/

我的第一个选择框选项最多包含40个以上的选项，因此，当我首先选择选项' 2 '时，第二个选择框也最多包含40个以上的optgroup.框，填充第二个框的所有以2开头的optgroup，即optgroup' 2 '，' 20 '-' 29 '填充，其他选择的选项也一样.

在选项的值和optgroup的标签之间是否可以完全匹配"ID"?

function filterActivity(e){
     var ids = $('#filterActivity + div input:checked').map(function(i) {
        return $(this).val().replace(/ .*/, '');
     }).get(); // Retrieve checked IDs

     $('#filterSubActivity + div div label').each(function() { // Show matching options
        $(this).toggle($.inArray($('input', this).val()[0], ids) > -1);
     });

     $('#filterSubActivity + div label.optGroup').each(function() { // Show matching groups
        $(this).toggle($(this).next().find('label:visible').length > 0);
     });
}

谢谢.

解决方案

使用基于正则表达式的过滤器

$('#filterSubActivity + div div label').each(function() { // Show matching options
    $(this).toggle($.inArray($('input', this).val().match(/^\d+/)[0], ids) > -1);
});

演示:小提琴

I got an issue with following script when the select-options become long:

Solution with few options http://jsfiddle.net/hsQjh/5/

Long options with issue: http://jsfiddle.net/hsQjh/6/

My first select-box option is up to 40+ of options, thus the second select-box would be up to 40+ of optgroup as well, when I picked option '2' on first box, second box are populated all optgroup that is numbered started with 2, which is optgroup '2', '20' - '29' are populated, the same are happen to other options which is had selected too.

Could it be match the 'IDs' exactly in between option's value and optgroup's label?

function filterActivity(e){
     var ids = $('#filterActivity + div input:checked').map(function(i) {
        return $(this).val().replace(/ .*/, '');
     }).get(); // Retrieve checked IDs

     $('#filterSubActivity + div div label').each(function() { // Show matching options
        $(this).toggle($.inArray($('input', this).val()[0], ids) > -1);
     });

     $('#filterSubActivity + div label.optGroup').each(function() { // Show matching groups
        $(this).toggle($(this).next().find('label:visible').length > 0);
     });
}

Thanks.

解决方案

Use a regex based filter

$('#filterSubActivity + div div label').each(function() { // Show matching options
    $(this).toggle($.inArray($('input', this).val().match(/^\d+/)[0], ids) > -1);
});

Demo: Fiddle

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