将javascript变量与href的一部分进行比较

Question

I need to compare a var foo = 'whatever' with THIS:

<ul id="nav_main"><li><a href="index.php?pag=THIS">link</a></li></ul>

And then, put class="current" inside the matched <li> .

Answer 1

var foo = 'whatever';
$("#nav_main li a").filter(function(index){
    return foo === this.href.match(/pag=(.*)/)[1];
}).parent().addClass("current");

Would that work?

Demo: http://jsfiddle.net/rREry/1

Answer 2

var foo = 'THIS';
$('a[href*="'+foo+'"]', '#nav_main').closest('li').addClass('current');

This searches for <a> tags that have an href attribute containing the string, and adds the class to their containing <li> .

Answer 3

$('#nav_main li').each(function() {  // loop through each <li>
    if ($(this).find('a').attr('href') == foo) {   // check against your var (not sure what exactly you wanted to check)
        $(this).addClass('current');       // add the "current" class if it matches
    }
});

Answer 4

if (foo == "<ul id="nav_main"><li><a href="index.php?pag=THIS">link</a></li></ul>"){
  foo.addClass("current")
}