Download data as file in browser

download.js

function download(data, filename, type) {
    var file = new Blob([data], {type: type});
    if (window.navigator.msSaveOrOpenBlob) // IE10+
        window.navigator.msSaveOrOpenBlob(file, filename);
    else { // Others
        var a = document.createElement("a"),
                url = URL.createObjectURL(file);
        a.href = url;
        a.download = filename;
        document.body.appendChild(a);
        a.click();
        setTimeout(function() {
            document.body.removeChild(a);
            window.URL.revokeObjectURL(url);  
        }, 0); 
    }
}

download_links.js

//Download all hyperlinks of a page
link_tags = document.getElementsByTagName('a')
var links = []
for(var i=0; i<link_tags.length;i++) {
    links.push({
        url: link_tags[i].href,
        name: link_tags[i].innerText
    })
}

for(var i=0;i<links.length;i++) {
    var link = document.createElement("a");
    link.download = links[i].name;
    link.href = links[i].url;
    document.body.appendChild(link);
    link.click();
    document.body.removeChild(link);
    delete link;
}