Question

EDIT: I would like to avoid doing something like this:

var str = 'Hello'; 
if ( str == 'Hello') { 
    alert(str); 
} 

I would rather do:

var str = 'Hello'; 
$(str).filter(':contains("Hello")').each(function(){ 
    alert(this) 
});

I’ve tried a lot of things:

$(str).text().method1().method2().method3();
$(str).val().method1().method2().method3();
$(str).contents().method1().method2().method3();

Nothing worked. Is it possible to do this?

Thank you for your time.

Kind regards,
Marius

Answer 1

Put the value in an array, they you can use the grep method to filter out the items in the array that matches a criteria:

$($.grep([str], function(e){
  return e == 'Hello';
})).each(function(){
  alert(this);
});

You can also make a plugin to make it more like the code that you wished for:

(function($){
  $.fn.eq = function(str) {
    return $($.grep(this, function(e){ return e == str; }));
  };
})(jQuery);

Usage:

var str = 'Hello';
$([str]).eq('Hello').each(function(){
  alert(this);
});