Using jQuery selectors to get form elements based on value or state

Is it possible to us jQuery to select a collection of form elements based on their value and/or state?

For instance, I have some code that looks like

jQuery("input[type='checkbox']").each(function(element){
    if(this.checked)
    {
         //do something with the checked checkeboxes
    }
});

I'd like to remove the interior conditional, an开发者_运维知识库d somehow add it to the initial selection. Either as part of the selector string, or via some additional method call on the chain.

---

Specifically for the checked attribute, you can use the :checked selector:

var checkedInputs = $('input:checked');

For other attributes, you can use the attribute filters.

---

Also for arbitrary filtering, use filter (as @CMS suggests). It's like grep but specifically for jQuery selection sets.

jQuery("input[type='checkbox']")
    .filter(function(){ return this.checked; })
    .each(function() {
        // Do something with "this"
    });