A cleaner way to select by multiple possible attribute values?

问题

Is there a possibility in jQuery to select by multiple possible attribute values without having to use a comma separated list of selectors.

So in stead of:

#list1 > option[value="1"], #list1 > option[value="2"], etc

Something like:

#list1 > option[value="1"|value="2"], etc

回答1:

Not that I know of. The cleanest way I can think of doing this is to first select using the common elements across all items, then just .find() or .filter() the OR values out.

Something like

$('#list1 > option[value]')
    .filter('[value="1"],[value="2"]')
    ;

回答2:

You can make a custom jQuery function like this:

$.fn.filterAttrVals = function (attr, vals) {
    var filter = '[' + attr + '="' + vals.split(',').join('"],[' + attr + '="') + '"]';
    return this.filter(filter);
};

For your example you could use it in the following way:

$('#list1 > option').filterAttrVals('value','1,2');

来源：https://stackoverflow.com/questions/5471775/a-cleaner-way-to-select-by-multiple-possible-attribute-values