Get the text from all elements with the same class

<div class="menu">Home</div>
<div class="menu">Categories</div>
<div class="menu">Contact us</div>
<div class="menu">About us</div>

function getText(classname){
 var text =[];
$("."+classname).each(function(){
text[text.length]=$(this).text();
});
return text;
}
getText("menu");