Load JavaScript and CSS from JSON

 async function loadFile(file) {

let x = await fetch(file);

return await x.text();

}

function loadjscssfile(fileobj){

let css = fileobj.css;

let base = js.css;

css.file.each(function(i){

loadjscssfile(base+'/'+i,'css');

})

let js = fileobj.js;

base = js.base;

js.file.each(function(i){

loadjscssfile(base+'/'+i,'js');

})

}

function loadjscssfile(filename, filetype){

if (filetype=="js"){ //if filename is a external JavaScript file

var fileref=document.createElement('script')

fileref.setAttribute("type","text/javascript")

fileref.setAttribute("src", filename)

}

else if (filetype=="css"){ //if filename is an external CSS file

var fileref=document.createElement("link")

fileref.setAttribute("rel", "stylesheet")

fileref.setAttribute("type", "text/css")

fileref.setAttribute("href", filename)

}

if (typeof fileref!="undefined")

document.getElementsByTagName("head")[0].appendChild(fileref)

}