函数外部链接（检查当前域）

Posted 2021-02-25

Get all the links and check if there's a rel attribute external, if not, compare href to the current domain name.

$.extend($.expr[':'],{
        external: function(a,i,m) {
            if(!a.href) { return false; }
            return $(a).is('[rel*="external"]');
        }
    });
 
    $.fn.externalLinks = function() {
        return this.each( function() {
            $("a", this)
                .filter(function(){
                    if($(this).is(":external")){
                        return true;
                    }else{
                        return $(this).is("[href^='http://']:not([href*='"+location.hostname+"'])");
                    }
                })
                .unbind("click.external")
                .bind("click.external", function(){
                    return !window.open(this.href);
                });
        });
    };