loadScript.js promisified

loadScriptPromised.js

function loadScript(src) {
  return new Promise(function(resolve, reject) {
    let script = document.createElement('script');
    script.src = src;

    script.onload = () => resolve(script);
    script.onerror = () => reject(new Error("Script load error: " + src));

    document.head.append(script);
  });
}


//Usage
/*loadScript("https://cdnjs.cloudflare.com/ajax/libs/lodash.js/3.2.0/lodash.js").then((success) => {
    Script laoded do something
})
.catch((err) => {
    Script failed to load , do something else
})*/