jQuery :contains with html

问题:

I have a table that contains comma separated lists of numbers like this: <td>72,76,81</td>. I'm trying to select the table cells that don't contain a particular number. This selector worked:

$("td:not(:contains('76'))", $table)

The issue is that there may be rows that contain '576' or '761', etc.

To solve that issue, I decided to put a <span> around each number, so that it's now: <td><span>72</span>,<span>76</span>,<span>81</span></td>. My selector is now:

$("td:not(:contains('<span>76</span>'))", $table)

When I debug this selector in Firebug, it's is returning some span tag that doesn't actually exist in the HTML source, instead of the correct <td>s.

Basically, putting the '<span>' in the :contains() string is breaking the selector. Is there any selector similar to :contains() that will work properly when HTML is passed to it? Or is there some way I can select by the entire string inside the <span>?

BTW, this site is using jquery 1.3.2.

回答1:

If you want to stick with <span>s, this works, even with jQuery 1.3.2:

var $tds = $("table td").filter(function() {
    return !$(this).find('span').filter(function () {
        return $(this).text() === '76';
    }).length;
});

http://jsfiddle.net/mattball/PFk8H/

---

On the other hand, it's actually really easy if you want to go back to the old markup:

var $tds = $("table td").filter(function() {
    return !$(this).text().match(/\b76\b/);
});

http://jsfiddle.net/mattball/L6AFz/

---

To use a variable in the regex, use the new RegExp(string) constructor syntax:

var n = 76,
    re = new RegExp("\\b" + n + "\\b");

var $tds = $("table td").filter(function() {
    return !$(this).text().match(re);
});

http://jsfiddle.net/mattball/hKQH7/

回答2:

try this:

$("td span:not(:contains('76'))", $table).parent()

$("td span", $table).filter(function(){return $(this).text() != '76';}).parent()

回答3:

You may not be able to use :contains for this. As you've stated :contains('76') will match '76', '576', '761', etc. You can try using .filter to get what you want.

$('td:has("span")').filter(function(){
    var x = true;
    $('span', this).each(function(){
        x = x && $(this).text() != '76';
    });
    return x;
});

Demo: http://jsfiddle.net/KvK3J/

回答4:

Tested with jQuery 1.2.6

http://jsfiddle.net/G27JF/4/

$("td>span").filter(function() { 
    return ($(this).text() != 76);
}).parent().css("text-decoration", "underline");

回答5:

To avoid the 'Contains' issue, you would make them as classes:

<span class="76"></span>

And:

$("td:not(:has(span.76)"), $table)

This could be adjusted to have multiples in 1 object too as:

<span class="76 77 78"></span>

Or even put in the TD itself simplifying the selector even more

$("td:not(.76 .77, $table)

回答6:

I would use a regular expression to match the insides of the table row. First iterate over all the elements then ignore the ones that match the regex

Here is a basic one that will match:

/^76$/g

check out RegExr to build more regex.