dynamic download filename

by Ariel Balter

HTML

<button>Set url and download name for anchor</button>
<a href="" download="">Download Google logo</a>

JavaScript

var googleLogoURL = "https://www.google.com/images/branding/googlelogo/2x/googlelogo_color_272x92dp.png"; 
$('button').on('click', function(){
    alert("url and filename set");
    $('a').prop({
        'href': googleLogoURL,
        'download': "google-logo.png"
    });
});